TWM529940U - Organic photoelectric conversion devices - Google Patents

Organic photoelectric conversion devices Download PDF

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Publication number
TWM529940U
TWM529940U TW105203587U TW105203587U TWM529940U TW M529940 U TWM529940 U TW M529940U TW 105203587 U TW105203587 U TW 105203587U TW 105203587 U TW105203587 U TW 105203587U TW M529940 U TWM529940 U TW M529940U
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layer
photoelectric conversion
transparent conductive
conversion device
organic photoelectric
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TW105203587U
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Chinese (zh)
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yu-yang Zhang
de-liang Yu
xiu-ming Liu
Ding-Guo Ding
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Nano Bit Tech Co Ltd
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Priority to TW105203587U priority Critical patent/TWM529940U/en
Priority to CN201620248650.2U priority patent/CN205645890U/en
Publication of TWM529940U publication Critical patent/TWM529940U/en

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Electroluminescent Light Sources (AREA)

Description

有機光電轉換裝置 Organic photoelectric conversion device

本創作涉及一種光電轉換裝置，特別是涉及一種可降低製程困難度的有機光電轉換裝置，可應用於太陽能電池。 The present invention relates to a photoelectric conversion device, and more particularly to an organic photoelectric conversion device capable of reducing the difficulty of a process, which can be applied to a solar cell.

太陽能電池的研究是再生能源中受眾人期待的一個方向。雖然現今已商業化的多數產品都是以矽為主要材料，不過使用高分子材料所開發的有機太陽能電池因為製程簡單、造價便宜、材質輕盈、可撓曲等特性而逐漸受到業界與學術界的矚目。 Solar cell research is a direction that audiences in renewable energy look forward to. Although most of the products that have been commercialized today are based on bismuth, organic solar cells developed using polymer materials have gradually gained industry and academia due to their simple process, low cost, light weight and flexibility. Attention.

現有的有機太陽能電池於製造時，大多是利用塗佈(Coating)作為成型太陽能電池薄膜的主要技術手段，這樣做的優點在於所形成的薄膜得以具有較佳的平整性與均勻性，若進一步搭配卷對卷(Roll-to-Roll，R2R)連續製程技術，則可大量快速與大面積化製作有機太陽能電池。這樣的做法在業界已有前例，例如，利用卷對卷方式大量生產可撓性顯示器(flexible display)，能夠簡化製造流程和降低製造成本。 In the manufacture of existing organic solar cells, coating is mostly used as a main technical means for forming a solar cell film. The advantage of this is that the formed film has better flatness and uniformity, and further matching Roll-to-Roll (R2R) continuous process technology enables large-scale rapid and large-area production of organic solar cells. Such practices have precedented the industry, for example, mass production of flexible displays using roll-to-roll methods can simplify manufacturing processes and reduce manufacturing costs.

請參閱圖1，為一種現有的反式有機太陽能電池之光電轉換裝置的結構示意圖。如圖所示，所述光電轉換裝置100’具有多個利用微影暨蝕刻方法所形成，且貫穿電洞傳遞層101’、主動層102’、電子傳遞層103’、及導電線路層104’的垂直孔洞105’，然後再使用導電塗料106’(如銀膠)填入垂直孔洞105’內以接觸導電線路層104’形成導通。不過事實上所述光電轉換裝置100’仍存在諸多限制須加以克服，例如：1)導電基板上各該導電層之間隙為配合各光電轉換單元，導致過於繁複而影響蝕刻作業時程；2)上層銀膠 導電層如何順利灌進蝕刻間隙或垂直孔洞而可與部分底層導電層構成導通。 Please refer to FIG. 1 , which is a structural diagram of a photoelectric conversion device of a conventional trans organic solar cell. As shown, the photoelectric conversion device 100' has a plurality of lithography and etching methods, and penetrates the hole transfer layer 101', the active layer 102', the electron transport layer 103', and the conductive circuit layer 104'. The vertical holes 105' are then filled into the vertical holes 105' using a conductive coating 106' (such as silver glue) to contact the conductive circuit layer 104' to form conduction. However, in fact, the photoelectric conversion device 100' still has many limitations to be overcome, for example: 1) the gap between the conductive layers on the conductive substrate is matched with each photoelectric conversion unit, which is too complicated to affect the etching operation time; 2) Upper silver glue How the conductive layer is smoothly poured into the etching gap or the vertical hole can be electrically connected with a part of the underlying conductive layer.

本創作之主要目的在於提供一種有機光電轉換裝置，其能克服現有的有機太陽能電池的光電轉換裝置中因為“相鄰的兩個發電裝置藉由垂直孔洞予以區隔”的結構設計所帶來的諸多限制，達到降低製程困難度及增加產品可靠度的功效。 The main purpose of the present invention is to provide an organic photoelectric conversion device which can overcome the structural design of the photoelectric conversion device of the existing organic solar cell because "the adjacent two power generation devices are separated by vertical holes". Many restrictions have been achieved to reduce the difficulty of the process and increase the reliability of the product.

根據本創作之一實施例，所述有機光電轉換裝置包括一透光性基板、一光電轉換複合層、及多個導電膠體。所述光電轉換複合層設置於所述透光性基板上，所述光電轉換複合層包括一透明導電層、一設置於所述透明導電層上的電子傳遞層、一設置於所述電子傳遞層上的主動層、及一設置於所述主動層上的電洞傳遞層，其中所述光電轉換複合層具有多個貫穿所述電洞傳遞層、所述主動層、所述電子傳遞層、及所述透明導電層的溝槽，每一個所述溝槽的寬度沿所述電洞傳遞層往所述透明導電層的方向遞減，且每一個所述溝槽的至少一側壁面為曲面；多個所述導電膠體設置於所述光電轉換複合層上，其中每一個所述導電膠體沿所述電洞傳遞層的表面及相對應的一個所述溝槽的至少一所述側壁面往所述透明導電層的方向延伸，並接觸所述透明導電層的一部分。 According to an embodiment of the present invention, the organic photoelectric conversion device includes a light transmissive substrate, a photoelectric conversion composite layer, and a plurality of conductive colloids. The photoelectric conversion composite layer is disposed on the light transmissive substrate, and the photoelectric conversion composite layer comprises a transparent conductive layer, an electron transport layer disposed on the transparent conductive layer, and an electron transport layer disposed on the electron transport layer An active layer, and a hole transfer layer disposed on the active layer, wherein the photoelectric conversion composite layer has a plurality of through the hole transfer layer, the active layer, the electron transport layer, and a trench of the transparent conductive layer, a width of each of the trenches decreases along a direction of the hole transfer layer toward the transparent conductive layer, and at least one sidewall surface of each of the trenches is a curved surface; The conductive paste is disposed on the photoelectric conversion composite layer, wherein each of the conductive pastes is along the surface of the hole transfer layer and at least one of the sidewall faces of the corresponding one of the grooves The direction of the transparent conductive layer extends and contacts a portion of the transparent conductive layer.

根據本創作之另一實施例，所述有機光電轉換裝置包括一透光性基板、一光電轉換複合層、及多個導電膠體。所述光電轉換複合層設置於所述透光性基板上，所述光電轉換複合層包括一透明導電層、一設置於所述透明導電層上的電子傳遞層、一設置於所述電子傳遞層上的主動層、及一設置於所述主動層上的電洞傳遞層，其中所述光電轉換複合層具有多個貫穿所述電洞傳遞層、所述主動層、所述電子傳遞層、及所述透明導電層的溝槽，每一個所述溝槽的寬度沿所述電洞傳遞層往所述透明導電層的方向遞 減，且每一個所述溝槽的至少一側壁面為曲面；多個所述導電膠體設置於所述光電轉換複合層上，其中每一對所述導電膠體的其中一個所述導電膠體設置於所述電洞傳遞層的表面，且每一對所述導電膠體的另一個所述導電膠體設置於相對應的一個所述溝槽底部。 According to another embodiment of the present invention, the organic photoelectric conversion device includes a light transmissive substrate, a photoelectric conversion composite layer, and a plurality of conductive colloids. The photoelectric conversion composite layer is disposed on the light transmissive substrate, and the photoelectric conversion composite layer comprises a transparent conductive layer, an electron transport layer disposed on the transparent conductive layer, and an electron transport layer disposed on the electron transport layer An active layer, and a hole transfer layer disposed on the active layer, wherein the photoelectric conversion composite layer has a plurality of through the hole transfer layer, the active layer, the electron transport layer, and The trench of the transparent conductive layer, the width of each of the trenches is along the direction of the hole transfer layer toward the transparent conductive layer And at least one sidewall surface of each of the trenches is a curved surface; a plurality of the conductive pastes are disposed on the photoelectric conversion composite layer, wherein one of the conductive pastes of each pair of the conductive pastes is disposed on The hole transports a surface of the layer, and another pair of the conductive paste of each pair of the conductive paste is disposed at a corresponding one of the groove bottoms.

較佳地，所述透光性基板上具有多個發電區域，多個所述溝槽沿所述透光性基板的長度方向或寬度方向間隔排列，每兩個相鄰的所述發電區域之間具有所述溝槽。 Preferably, the light-transmissive substrate has a plurality of power generating regions, and the plurality of trenches are arranged at intervals along a length direction or a width direction of the light-transmitting substrate, and each of the two adjacent power generating regions is arranged. There is a groove between them.

較佳地，所述透明導電層包括多個透明電極，且多個所述透明電極分別位於多個所述發電區域內，其中一個所述導電膠體沿著其中一個所述發電區域內的所述電洞傳遞層的表面以及相對應的所述溝槽的至少一所述側壁面延伸，並接觸另一個所述發電區域內的所述透明電極，以使得每兩個相鄰的所述發電區域彼此電性連結。 Preferably, the transparent conductive layer comprises a plurality of transparent electrodes, and a plurality of the transparent electrodes are respectively located in a plurality of the power generating regions, wherein one of the conductive colloids is along the one of the power generating regions a surface of the hole transfer layer and at least one of the side wall faces of the corresponding groove and contacting the transparent electrode in the other of the power generation regions such that each two adjacent power generation regions Electrically connected to each other.

較佳地，至少一所述溝槽的頂部輪廓呈連續波浪狀。 Preferably, the top profile of at least one of the grooves is continuously wavy.

較佳地，所述透光性基板的厚度介於10至500μm，所述透光性基板為一透明塑膠基板或一玻璃基板。 Preferably, the transparent substrate has a thickness of 10 to 500 μm, and the transparent substrate is a transparent plastic substrate or a glass substrate.

較佳地，所述透明塑膠基板的材料為聚乙烯對苯二甲酸酯(PET)、聚乙烯(PE)、聚醯亞胺(PI)、聚醯胺(PA)、聚氨酯(PU)、或壓克力。 Preferably, the transparent plastic substrate is made of polyethylene terephthalate (PET), polyethylene (PE), polyimine (PI), polyamine (PA), polyurethane (PU), Or acrylic.

較佳地，所述透明導電層的厚度介於100nm至10μm，所述透明導電層的透光率介於70%至95%，所述透明導電層為有機導體材料或無機導體材料所形成。 Preferably, the transparent conductive layer has a thickness of 100 nm to 10 μm, and the transparent conductive layer has a light transmittance of 70% to 95%. The transparent conductive layer is formed of an organic conductive material or an inorganic conductive material.

較佳地，所述有機導體材料為聚3,4-乙撑二氧噻吩(PEDOT)、奈米碳管、或其組合。 Preferably, the organic conductor material is poly 3,4-ethylenedioxythiophene (PEDOT), a carbon nanotube, or a combination thereof.

較佳地，所述無機導體材料為金屬或金屬氧化物。 Preferably, the inorganic conductor material is a metal or a metal oxide.

較佳地，所述電子傳遞層的厚度介於10至100μm，所述主動層的厚度介於10至100μm，所述電洞傳遞層的厚度介於50至200 μm。 Preferably, the electron transport layer has a thickness of 10 to 100 μm, the active layer has a thickness of 10 to 100 μm, and the hole transport layer has a thickness of 50 to 200. Mm.

較佳地，所述光電轉換複合層更包括一光學硬化層，所述光學硬化層設置於所述透光性基板與所述透明導電層之間。 Preferably, the photoelectric conversion composite layer further includes an optical hardening layer disposed between the light transmissive substrate and the transparent conductive layer.

較佳地，所述光學硬化層的厚度介於1至5μm，所述光學硬化層的材料為壓克力、環氧樹脂、二氧化矽、或其組合。 Preferably, the optically hardened layer has a thickness of 1 to 5 μm, and the optical hardened layer is made of acrylic, epoxy resin, cerium oxide, or a combination thereof.

較佳地，每一個所述溝槽的頂部槽口的寬度介於10至100μm，每一個所述溝槽的底部槽口的寬度介於1至50μm。 Preferably, the top notch of each of the grooves has a width of 10 to 100 μm, and the bottom notch of each of the grooves has a width of 1 to 50 μm.

本創作的有益效果主要在於：本創作實施例所提供的有機光電轉換裝置透過“光電轉換複合層中藉由雷射蝕刻技術而形成有多個特殊構型的溝槽，其中每一個溝槽的頂部輪廓略呈波浪狀，每一個溝槽的寬度由上而下遞減且具有至少一側壁面為曲面”的設計，除了在相鄰的發電區域之間，上導電層(導電膠體)可以順著溝槽的側壁面延伸以接觸到下導電層(透明電極)，以達到電性連接串聯並提升電壓的效果外，還增加導電膠體與電洞傳遞層之間的結合力。 The beneficial effects of the present invention are mainly that the organic photoelectric conversion device provided by the present embodiment forms a plurality of trenches of a special configuration by laser etching in the photoelectric conversion composite layer, wherein each trench is formed. The top profile is slightly wavy, the width of each groove is decreasing from top to bottom and the at least one side wall surface is curved, except that the upper conductive layer (conductive colloid) can follow along the adjacent power generation regions. The sidewall surface of the trench extends to contact the lower conductive layer (transparent electrode) to achieve the effect of electrically connecting the series and increasing the voltage, and also increasing the bonding force between the conductive paste and the hole transfer layer.

為使能更進一步瞭解本創作之特徵及技術內容，請參閱以下有關本創作之詳細說明與附圖，但是此等說明與所提供的附圖僅係用來說明本創作，而非對本創作的權利範圍作任何的限制。 In order to further understand the features and technical contents of this creation, please refer to the following detailed description and drawings regarding the creation, but the descriptions and the drawings provided are only for explaining the creation, not for the creation. The scope of rights is subject to any restrictions.

(先前技術) (previous technology)

100’‧‧‧光電轉換裝置 100'‧‧‧ photoelectric conversion device

101’‧‧‧電洞傳遞層 101’‧‧‧ hole transfer layer

102’‧‧‧主動層 102’‧‧‧ active layer

103’‧‧‧電子傳遞層 103’‧‧‧Electronic transmission layer

104’‧‧‧導電線路層 104'‧‧‧ Conductive circuit layer

105’‧‧‧垂直孔洞 105’‧‧‧Vertical holes

106’‧‧‧導電塗料 106’‧‧‧Conductive coating

(本創作) (this creation)

100a、100b‧‧‧有機光電轉換裝置 100a, 100b‧‧‧Organic photoelectric conversion device

1‧‧‧透光性基板 1‧‧‧Transmissive substrate

10‧‧‧發電區域 10‧‧‧Power generation area

2‧‧‧光電轉換複合層 2‧‧‧ photoelectric conversion composite layer

21‧‧‧透明導電層 21‧‧‧Transparent conductive layer

211‧‧‧透明電極 211‧‧‧ transparent electrode

22‧‧‧電子傳遞層 22‧‧‧Electronic transmission layer

23‧‧‧主動層 23‧‧‧Active layer

24‧‧‧電洞傳遞層 24‧‧‧ hole transfer layer

25‧‧‧溝槽 25‧‧‧ trench

251‧‧‧側壁面 251‧‧‧ side wall

W1‧‧‧頂部槽口的寬度 W1‧‧‧ width of the top notch

W2‧‧‧底部槽口的寬度 W2‧‧‧ width of the bottom notch

3、3’‧‧‧導電膠體 3, 3'‧‧‧ Conductive colloid

4‧‧‧光學硬化層 4‧‧‧Optical hardened layer

圖1為現有的反式有機太陽能電池之光電轉換裝置的結構示意圖。 FIG. 1 is a schematic structural view of a photoelectric conversion device of a conventional trans organic solar cell.

圖2為本創作第一實施例之有機光電轉換裝置的剖視圖。 Figure 2 is a cross-sectional view showing the organic photoelectric conversion device of the first embodiment of the present invention.

圖3為本創作第一實施例之有機光電轉換裝置的上視圖。 Figure 3 is a top view of the organic photoelectric conversion device of the first embodiment of the present invention.

圖4為本創作第一實施例之有機光電轉換裝置的局部結構剖視圖。 Figure 4 is a cross-sectional view showing a partial structure of an organic photoelectric conversion device according to a first embodiment of the present invention.

圖5為本創作第一實施例之有機光電轉換裝置的局部結構上視圖。 Figure 5 is a partial top plan view of the organic photoelectric conversion device of the first embodiment of the present invention.

圖6為本創作第二實施例之有機光電轉換裝置的剖視圖。 Figure 6 is a cross-sectional view showing the organic photoelectric conversion device of the second embodiment of the present invention.

圖7為本創作第二實施例之有機光電轉換裝置的上視圖。 Figure 7 is a top view of the organic photoelectric conversion device of the second embodiment of the present invention.

本創作所揭露的內容主要是關於一種應用於光電轉換裝置的 有機光電轉換複合層的結構改良，其中相鄰發電單元間由於具有一利用雷射蝕刻技術所形成的特殊溝槽結構，因此能克服製程上的諸多限制，達到降低製程困難度及增加產品可靠度的功效。 The content disclosed in this creation is mainly about one applied to a photoelectric conversion device. The structural improvement of the organic photoelectric conversion composite layer, wherein the adjacent power generation unit has a special groove structure formed by laser etching technology, thereby overcoming many limitations in the process, thereby reducing process difficulty and increasing product reliability. The effect.

在下文將參看隨附圖式更充分地描述各種例示性實施例，在隨附圖式中展示一些例示性實施例。然而，本創作概念可能以許多不同形式來體現，且不應解釋為限於本文中所闡述之例示性實施例。確切而言，提供此等例示性實施例使得本創作將為詳盡且完整，且將向熟習此項技術者充分傳達本創作概念的範疇。在諸圖式中，可為了清楚而誇示層及區之大小及相對大小。類似數字始終指示類似元件。 Various illustrative embodiments are described more fully hereinafter with reference to the accompanying drawings. However, the inventive concept may be embodied in many different forms and should not be construed as being limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this description will be thorough and complete, and the scope of the inventive concept will be fully conveyed to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Similar numbers always indicate similar components.

應理解，雖然本文中可能使用術語第一、第二、第三等來描述各種元件或信號等，但此等元件或信號不應受此等術語限制。此等術語乃用以區分一元件與另一元件，或者一信號與另一信號。另外，如本文中所使用，術語「或」視實際情況可能包括相關聯之列出項目中之任一者或者多者之所有組合。 It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals and the like, such elements or signals are not limited by the terms. These terms are used to distinguish one element from another, or a signal and another. In addition, as used herein, the term "or" may include all combinations of any one or more of the associated listed items.

〔第一實施例〕 [First Embodiment]

請一併參閱圖2及圖3，其中圖2為本創作第一實施例之有機光電轉換裝置的剖視圖，圖3為本創作第一實施例之有機光電轉換裝置的上視圖。如圖所示，本實施例之有機光電轉換裝置100a包括一透光性基板1、一光電轉換複合層2、及多個導電膠體3，光電轉換複合層2設置於透光性基板1上，多個導電膠體3間隔地設置於光電轉換複合層2上。其中，透光性基板1與外界接觸之面可以讓光進入，光電轉換複合層2與導電膠體3相互電性連接，且可達成回應入射光或入射能量之準確光電轉換。 2 and FIG. 3, FIG. 2 is a cross-sectional view of the organic photoelectric conversion device according to the first embodiment of the present invention, and FIG. 3 is a top view of the organic photoelectric conversion device of the first embodiment. As shown in the figure, the organic photoelectric conversion device 100a of the present embodiment includes a light-transmissive substrate 1, a photoelectric conversion composite layer 2, and a plurality of conductive pastes 3, and the photoelectric conversion composite layer 2 is disposed on the light-transmitting substrate 1. A plurality of conductive pastes 3 are disposed on the photoelectric conversion composite layer 2 at intervals. The surface of the light-transmitting substrate 1 in contact with the outside can allow light to enter, and the photoelectric conversion composite layer 2 and the conductive paste 3 are electrically connected to each other, and accurate photoelectric conversion in response to incident light or incident energy can be achieved.

本實施例中，透光性基板1可採用一透明塑膠基板或一玻璃基板，然而透光性基板1的尺寸和外形並無特別限制，不過依據產品需求，透光性基板1可為矩形且厚度介於10至500μm。所述 透明塑膠基板的具體例包括：聚乙烯對苯二甲酸酯(PET)、聚乙烯(PE)、聚醯亞胺(PI)、聚醯胺(PA)、聚氨酯(PU)、壓克力等。 In this embodiment, the transparent substrate 1 may be a transparent plastic substrate or a glass substrate. However, the size and shape of the transparent substrate 1 are not particularly limited, but the transparent substrate 1 may be rectangular according to product requirements. The thickness is between 10 and 500 μm. Said Specific examples of the transparent plastic substrate include polyethylene terephthalate (PET), polyethylene (PE), polyimine (PI), polyamine (PA), polyurethane (PU), acrylic, etc. .

請配合參閱圖4及圖5，光電轉換複合層2主要包括一透明導電層21、一設置於透明導電層21上的電子傳遞層22、一設置於電子傳遞層22上的主動層23、及一設置於主動層23上的電洞傳遞層24，值得注意的是，光電轉換複合層2中藉由雷射蝕刻技術而形成有多個特殊構型的溝槽25，具體地說，每一個溝槽25係利用接續蝕刻方式在透光性基板1的寬度方向上的多個作業區塊循序地進行雷射蝕刻所形成；依此方式，可降低製程困難度與製造成本。 Referring to FIG. 4 and FIG. 5 , the photoelectric conversion composite layer 2 mainly includes a transparent conductive layer 21 , an electron transport layer 22 disposed on the transparent conductive layer 21 , an active layer 23 disposed on the electron transport layer 22 , and a hole transfer layer 24 disposed on the active layer 23, it is noted that the photoelectric conversion composite layer 2 is formed by a laser etching technique to form a plurality of grooves 25 of a special configuration, specifically, each The trench 25 is formed by sequentially performing laser etching on a plurality of working blocks in the width direction of the light-transmitting substrate 1 by a bonding etching method; in this manner, process difficulty and manufacturing cost can be reduced.

從結構上來看，所形成的溝槽25的頂部輪廓略呈連續波浪狀(如圖5所示)，且斷面略呈碗形(如圖4所示)；更進一步來說，多個溝槽25係沿透光性基板1的長度方向間隔排列，每一個溝槽25的寬度沿電洞傳遞層24往透明導電層21的方向遞減(即由上而下遞減)，其中頂部槽口的寬度W1約介於10至100μm，底部槽口的寬度W2約介於1至50μm，且每一個溝槽25的至少一側壁面251為曲面(如圖1所示)。從功能上來看，多個的溝槽25係用以在透光性基板1上定義出多個發電區域10，其中每兩個相鄰的發電區域10之間具有一個溝槽25。 Structurally, the top profile of the formed groove 25 is slightly continuous in wave shape (as shown in FIG. 5), and the cross section is slightly bowl-shaped (as shown in FIG. 4); further, a plurality of grooves The grooves 25 are arranged along the longitudinal direction of the light-transmitting substrate 1, and the width of each of the grooves 25 is decreased along the hole-transporting layer 24 toward the transparent conductive layer 21 (i.e., decreasing from top to bottom), wherein the top notch is The width W1 is approximately 10 to 100 μm, the width W2 of the bottom notch is approximately 1 to 50 μm, and at least one side wall surface 251 of each of the grooves 25 is curved (as shown in FIG. 1). Functionally, a plurality of trenches 25 are used to define a plurality of power generating regions 10 on the light transmissive substrate 1, with a trench 25 between each two adjacent power generating regions 10.

透明導電層21包括多個透明電極211，其分別位於多個發電區域10內。透明導電層21可採用有機導體材料或無機導體材料，並經由塗佈或蒸鍍方式形成於透光性基板1上方，依據產品需求，透明導電層21的厚度以100nm至10μm為較佳，且透明導電層21的透光率以70%至95%為較佳。所述有機導體材料可為聚3,4-乙撑二氧噻吩(PEDOT)、奈米碳管、或其組合，所述無機導體材料可為金屬或金屬氧化物。 The transparent conductive layer 21 includes a plurality of transparent electrodes 211 located in the plurality of power generation regions 10, respectively. The transparent conductive layer 21 may be formed of an organic conductive material or an inorganic conductive material and coated on the light-transmitting substrate 1 by coating or vapor deposition. The thickness of the transparent conductive layer 21 is preferably 100 nm to 10 μm, depending on the product requirements. The light transmittance of the transparent conductive layer 21 is preferably 70% to 95%. The organic conductor material may be poly 3,4-ethylenedioxythiophene (PEDOT), a carbon nanotube, or a combination thereof, and the inorganic conductor material may be a metal or a metal oxide.

電子傳遞層22、主動層23、及電洞傳遞層24依序層疊於透明導電層21上，依據產品需求，電子傳遞層22的厚度以10至100 μm為較佳，主動層23的厚度以10至100μm為較佳，電洞傳遞層24的厚度以50至200μm為較佳。本實施例並不限定電子傳遞層22、主動層23、及電洞傳遞層24的材料和沉積方式，例如，電子傳遞層22可採用有助於電子的注入和傳輸的材料(如ZnO、TiO2等)，電洞傳遞層24可採用有助於電洞的注入和傳輸的材料(如PEDOT、MoO3、V2O5等)，主動層23可採用有助於增加電子電洞重新結合的材料，且可為單層異質接面(BHJ)結構，現有技術的方法像是旋轉塗佈法、真空沉積法等均可使用。 The electron transport layer 22, the active layer 23, and the hole transport layer 24 are sequentially stacked on the transparent conductive layer 21. The thickness of the electron transport layer 22 is preferably 10 to 100 μm, and the thickness of the active layer 23 is Preferably, 10 to 100 μm, and the thickness of the hole transport layer 24 is preferably 50 to 200 μm. The embodiment does not limit the materials and deposition manner of the electron transport layer 22, the active layer 23, and the hole transport layer 24. For example, the electron transport layer 22 may employ materials (such as ZnO, TiO) that facilitate electron injection and transport. 2, etc., the hole transfer layer 24 may be used to facilitate the injection and transmission of holes (such as PEDOT, MoO 3 , V 2 O 5 , etc.), and the active layer 23 may be used to help increase electron hole recombination. The material may be a single layer heterojunction (BHJ) structure, and the prior art methods such as spin coating, vacuum deposition, etc. may be used.

多個導電膠體3可依設定好的電極圖案印刷於光電轉換複合層2上；具體地說，可將一網版(圖中未顯示)置於光電轉換複合層2的上方，其中網版具有一相對於所述電極圖案的鏤空圖形，然後藉由刮刀(圖中未顯示)擠壓導電鋁膠或銀膠以使其通過網版而轉印到光電轉換複合層2上，圖形化的導電銀膠於固化後即形成導電膠體3。值得說明的是，在相鄰的發電區域10之間，由於導電膠體3係沿其中一個發電區域10內的電洞傳遞層24的表面延伸，然後順著溝槽25的側壁面251而接觸到另一個發電區域10內之透明電極211外露的部分，因此可以達到電性連接串聯並提升電壓的效果，以及增加導電膠體3與電洞傳遞層24之間的結合力。 The plurality of conductive pastes 3 can be printed on the photoelectric conversion composite layer 2 according to the set electrode pattern; specifically, a screen (not shown) can be placed above the photoelectric conversion composite layer 2, wherein the screen has a hollow pattern relative to the electrode pattern is then extruded by a doctor blade (not shown) to expose the conductive aluminum paste or silver paste to the photoelectric conversion composite layer 2 through the screen, and the patterned conductive The silver colloid forms a conductive colloid 3 after curing. It should be noted that, between adjacent power generation regions 10, the conductive paste 3 extends along the surface of the hole transfer layer 24 in one of the power generation regions 10, and then contacts the sidewall surface 251 of the trench 25. The exposed portion of the transparent electrode 211 in the other power generation region 10 can thereby achieve the effect of electrically connecting the series and increasing the voltage, and increasing the bonding force between the conductive paste 3 and the hole transfer layer 24.

再者，為了增加有機光電轉換裝置100a的機械強度，可進一步於透光性基板1與透明導電層21之間設置一光學硬化層4，其材料可為壓克力、環氧樹脂、二氧化矽、或其組合，且厚度可介於1至5μm之間。 Furthermore, in order to increase the mechanical strength of the organic photoelectric conversion device 100a, an optical hardening layer 4 may be further disposed between the light-transmitting substrate 1 and the transparent conductive layer 21, and the material thereof may be acrylic, epoxy resin, or dioxide.矽, or a combination thereof, and may have a thickness of between 1 and 5 μm.

〔第二實施例〕 [Second embodiment]

請一併參閱圖6及圖7，其中圖6為本創作第二實施例之有機光電轉換裝置的剖視圖，圖7為本創作第二實施例之有機光電轉換裝置的上視圖。如圖所示，本實施例之有機光電轉換裝置100b 包括一透光性基板1、一光電轉換複合層2、及多個導電膠體3’。本實施例與前一實施例不同之處主要在於，多個導電膠體3’係以成對方式相互配合以利排版佈線；具體地說，每兩個相鄰的發電區域10係藉由一對導電膠體3’相互電性連接，其中一個導電膠體3’(或稱上導電膠體)設置於電洞傳遞層24的表面，以作為上導電層之引線，另一個導電膠體3’(或稱下導電膠體)則設置於溝槽25底部，且接觸到透明電極211外露的部分，以作為下導電層之引線。 Referring to FIG. 6 and FIG. 7, FIG. 6 is a cross-sectional view of the organic photoelectric conversion device according to the second embodiment of the present invention, and FIG. 7 is a top view of the organic photoelectric conversion device according to the second embodiment of the present invention. As shown in the figure, the organic photoelectric conversion device 100b of the present embodiment The invention comprises a light-transmissive substrate 1, a photoelectric conversion composite layer 2, and a plurality of conductive pastes 3'. The difference between this embodiment and the previous embodiment is mainly that a plurality of conductive colloids 3 ′ are matched in a paired manner to facilitate layout layout; specifically, each two adjacent power generation regions 10 are connected by a pair. The conductive colloids 3' are electrically connected to each other, and one conductive colloid 3' (or upper conductive colloid) is disposed on the surface of the hole transfer layer 24 to serve as a lead of the upper conductive layer, and another conductive colloid 3' (or lower) The conductive paste is disposed at the bottom of the trench 25 and contacts the exposed portion of the transparent electrode 211 to serve as a lead of the lower conductive layer.

〔實施例的可能功效〕 [Possible effects of the examples]

首先，本創作實施例所提供的有機光電轉換裝置所包括的光電轉換複合層中藉由雷射蝕刻技術而形成有多個特殊構型的溝槽，其中每一個溝槽的寬度由上而下遞減，且每一個溝槽的至少一側壁面為曲面，藉此，在相鄰的發電區域之間，上導電層(導電膠體)可以順著溝槽的側壁面延伸以接觸到下導電層(透明電極)，以達到電性連接串聯並提升電壓的效果。 First, in the photoelectric conversion composite layer included in the organic photoelectric conversion device provided by the present embodiment, a plurality of trenches having a special configuration are formed by a laser etching technique, wherein the width of each trench is from top to bottom. Decreasing, and at least one sidewall surface of each trench is curved, whereby an upper conductive layer (conductive colloid) may extend along the sidewall surface of the trench to contact the lower conductive layer between adjacent power generating regions ( Transparent electrode) to achieve the effect of electrically connecting the series and increasing the voltage.

承上述，由於每一個溝槽的頂部輪廓略呈波浪狀，因此還可增加導電膠體與電洞傳遞層之間的結合力。 In view of the above, since the top profile of each of the grooves is slightly wavy, the bonding force between the conductive paste and the hole transfer layer can also be increased.

再者，本創作實施例所提供的有機光電轉換裝置不僅可降低製程困難度與製造成本，而且於製造時可利用卷對卷(R2R)製造技術，非常適合工業化量產。 Furthermore, the organic photoelectric conversion device provided by the present embodiment can not only reduce process difficulty and manufacturing cost, but also utilize roll-to-roll (R2R) manufacturing technology at the time of manufacture, which is very suitable for industrial mass production.

以上所述僅為本創作的實施例，其並非用以限定本創作的專利保護範圍。任何熟習相像技藝者，在不脫離本創作的精神與範圍內，所作的更動及潤飾的等效替換，仍為本創作的專利保護範圍內。 The above description is only an embodiment of the present invention, and is not intended to limit the scope of patent protection of the present invention. Anyone who is familiar with the art of the artist, within the spirit and scope of the creation, the equivalent of the change and retouching is still within the scope of the patent protection of the creation.

100a‧‧‧有機光電轉換裝置 100a‧‧‧Organic photoelectric conversion device

1‧‧‧透光性基板 1‧‧‧Transmissive substrate

10‧‧‧發電區域 10‧‧‧Power generation area

2‧‧‧光電轉換複合層 2‧‧‧ photoelectric conversion composite layer

21‧‧‧透明導電層 21‧‧‧Transparent conductive layer

211‧‧‧透明電極 211‧‧‧ transparent electrode

22‧‧‧電子傳遞層 22‧‧‧Electronic transmission layer

23‧‧‧主動層 23‧‧‧Active layer

24‧‧‧電洞傳遞層 24‧‧‧ hole transfer layer

25‧‧‧溝槽 25‧‧‧ trench

251‧‧‧側壁面 251‧‧‧ side wall

3‧‧‧導電膠體 3‧‧‧ Conductive colloid

4‧‧‧光學硬化層 4‧‧‧Optical hardened layer

Claims (14)

一種有機光電轉換裝置，包括：一透光性基板；一光電轉換複合層，設置於所述透光性基板上，所述光電轉換複合層包括一透明導電層、一設置於所述透明導電層上的電子傳遞層、一設置於所述電子傳遞層上的主動層、及一設置於所述主動層上的電洞傳遞層，其中，所述光電轉換複合層具有多個貫穿所述電洞傳遞層、所述主動層、所述電子傳遞層、及所述透明導電層的溝槽，每一個所述溝槽的寬度沿所述電洞傳遞層往所述透明導電層的方向遞減，且每一個所述溝槽的至少一側壁面為曲面；以及多個導電膠體，設置於所述光電轉換複合層上，其中，每一個所述導電膠體沿所述電洞傳遞層的表面及相對應的一個所述溝槽的至少一所述側壁面往所述透明導電層的方向延伸，並接觸所述透明導電層的一部分。 An organic photoelectric conversion device comprising: a light transmissive substrate; a photoelectric conversion composite layer disposed on the light transmissive substrate, the photoelectric conversion composite layer comprising a transparent conductive layer, and a transparent conductive layer disposed on the transparent conductive layer An electron transport layer, an active layer disposed on the electron transport layer, and a hole transport layer disposed on the active layer, wherein the photoelectric conversion composite layer has a plurality of through holes a transfer layer, the active layer, the electron transport layer, and a trench of the transparent conductive layer, a width of each of the trenches decreasing along a direction of the hole transfer layer toward the transparent conductive layer, and At least one side wall surface of each of the grooves is a curved surface; and a plurality of conductive colloids are disposed on the photoelectric conversion composite layer, wherein each of the conductive colloids is along a surface of the hole transmission layer and corresponds to At least one of the sidewall faces of one of the trenches extends toward the transparent conductive layer and contacts a portion of the transparent conductive layer. 一種有機光電轉換裝置，包括：一透光性基板；一光電轉換複合層，設置於所述透光性基板上，所述光電轉換複合層包括一透明導電層、一設置於所述透明導電層上的電子傳遞層、一設置於所述電子傳遞層上的主動層、及一設置於所述主動層上的電洞傳遞層，其中，所述光電轉換複合層具有多個貫穿所述電洞傳遞層、所述主動層、所述電子傳遞層、及所述透明導電層的溝槽，每一個所述溝槽的寬度沿所述電洞傳遞層往所述透明導電層的方向遞減，且每一個所述溝槽的至少一側壁面為曲面；以及多對導電膠體，設置於所述光電轉換複合層上，其中，每一對所述導電膠體的其中一個所述導電膠體設置於所述電洞傳遞 層的表面，且每一對所述導電膠體的另一個所述導電膠體設置於相對應的一個所述溝槽底部。 An organic photoelectric conversion device comprising: a light transmissive substrate; a photoelectric conversion composite layer disposed on the light transmissive substrate, the photoelectric conversion composite layer comprising a transparent conductive layer, and a transparent conductive layer disposed on the transparent conductive layer An electron transport layer, an active layer disposed on the electron transport layer, and a hole transport layer disposed on the active layer, wherein the photoelectric conversion composite layer has a plurality of through holes a transfer layer, the active layer, the electron transport layer, and a trench of the transparent conductive layer, a width of each of the trenches decreasing along a direction of the hole transfer layer toward the transparent conductive layer, and At least one side wall surface of each of the grooves is a curved surface; and a plurality of pairs of conductive pastes are disposed on the photoelectric conversion composite layer, wherein one of the conductive pastes of each pair of the conductive pastes is disposed on the Hole transfer The surface of the layer, and the other of the conductive pastes of each pair of the conductive paste is disposed at a corresponding one of the bottoms of the trenches. 如請求項1所述的有機光電轉換裝置，其中所述透光性基板上具有多個發電區域，多個所述溝槽沿所述透光性基板的長度方向或寬度方向間隔排列，每兩個相鄰的所述發電區域之間具有所述溝槽。 The organic photoelectric conversion device according to claim 1, wherein the light-transmissive substrate has a plurality of power generation regions, and the plurality of the trenches are arranged at intervals along a length direction or a width direction of the light-transmitting substrate, each of two The adjacent ones of the power generation regions have the trenches therebetween. 如請求項3所述的有機光電轉換裝置，其中所述透明導電層包括多個透明電極，且多個所述透明電極分別位於多個所述發電區域內，其中一個所述導電膠體沿著其中一個所述發電區域內的所述電洞傳遞層的表面以及相對應的所述溝槽的至少一所述側壁面延伸，並接觸另一個所述發電區域內的所述透明電極，以使得每兩個相鄰的所述發電區域彼此電性連結。 The organic photoelectric conversion device according to claim 3, wherein the transparent conductive layer comprises a plurality of transparent electrodes, and the plurality of the transparent electrodes are respectively located in a plurality of the power generation regions, wherein one of the conductive colloids is along a surface of the hole transfer layer in the power generation region and at least one of the side wall faces of the corresponding groove, and contacting the transparent electrode in another of the power generation regions, such that each Two adjacent power generating regions are electrically connected to each other. 如請求項1或2所述的有機光電轉換裝置，其中至少一所述溝槽的頂部輪廓呈連續波浪狀。 The organic photoelectric conversion device according to claim 1 or 2, wherein a top profile of at least one of the grooves is continuous in a wave shape. 如請求項1或2所述的有機光電轉換裝置，其中所述透光性基板的厚度介於10至500μm，所述透光性基板為一透明塑膠基板或一玻璃基板。 The organic photoelectric conversion device according to claim 1 or 2, wherein the translucent substrate has a thickness of 10 to 500 μm, and the translucent substrate is a transparent plastic substrate or a glass substrate. 如請求項6所述的有機光電轉換裝置，其中所述透明塑膠基板的材料為聚乙烯對苯二甲酸酯(PET)、聚乙烯(PE)、聚醯亞胺(PI)、聚醯胺(PA)、聚氨酯(PU)、或壓克力。 The organic photoelectric conversion device according to claim 6, wherein the transparent plastic substrate is made of polyethylene terephthalate (PET), polyethylene (PE), polyimine (PI), polyamine. (PA), polyurethane (PU), or acrylic. 如請求項1或2所述的有機光電轉換裝置，其中所述透明導電層的厚度介於100nm至10μm，所述透明導電層的透光率介於70%至95%，所述透明導電層為有機導體材料或無機導體材料所形成。 The organic photoelectric conversion device according to claim 1 or 2, wherein the transparent conductive layer has a thickness of 100 nm to 10 μm, and the transparent conductive layer has a light transmittance of 70% to 95%, the transparent conductive layer It is formed of an organic conductor material or an inorganic conductor material. 如請求項8所述的有機光電轉換裝置，其中所述有機導體材料為聚3,4-乙撑二氧噻吩(PEDOT)、奈米碳管、或其組合。 The organic photoelectric conversion device according to claim 8, wherein the organic conductor material is poly 3,4-ethylenedioxythiophene (PEDOT), a carbon nanotube, or a combination thereof. 如請求項8所述的有機光電轉換裝置，其中所述無機導體材料為金屬或金屬氧化物。 The organic photoelectric conversion device according to claim 8, wherein the inorganic conductor material is a metal or a metal oxide. 如請求項1或2所述的有機光電轉換裝置，其中所述電子傳遞層的厚度介於10至100μm，所述主動層的厚度介於10至100μm，所述電洞傳遞層的厚度介於50至200μm。 The organic photoelectric conversion device according to claim 1 or 2, wherein the electron transport layer has a thickness of 10 to 100 μm, the active layer has a thickness of 10 to 100 μm, and the thickness of the hole transport layer is between 50 to 200 μm. 如請求項1或2所述的有機光電轉換裝置，其中所述光電轉換複合層更包括一光學硬化層，所述光學硬化層設置於所述透光性基板與所述透明導電層之間。 The organic photoelectric conversion device according to claim 1 or 2, wherein the photoelectric conversion composite layer further comprises an optically hardened layer disposed between the light-transmitting substrate and the transparent conductive layer. 如請求項12所述的有機光電轉換裝置，其中所述光學硬化層的厚度介於1至5μm，所述光學硬化層的材料為壓克力、環氧樹脂、二氧化矽、或其組合。 The organic photoelectric conversion device according to claim 12, wherein the optically hardened layer has a thickness of from 1 to 5 μm, and the material of the optically hardened layer is acrylic, epoxy resin, cerium oxide, or a combination thereof. 如請求項1或2所述的有機光電轉換裝置，其中每一個所述溝槽的頂部槽口的寬度介於10至100μm，每一個所述溝槽的底部槽口的寬度介於1至50μm。 The organic photoelectric conversion device according to claim 1 or 2, wherein a width of a top notch of each of the grooves is 10 to 100 μm, and a width of a bottom notch of each of the grooves is 1 to 50 μm .
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