TWI495913B - Light harvesting device capable of achieving one-step alignment and dye-sensitized solar cell structure of using the same - Google Patents
Light harvesting device capable of achieving one-step alignment and dye-sensitized solar cell structure of using the same Download PDFInfo
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Description
本發明係關於一種光捕獲裝置及染料敏化太陽能電池結構,特別係關於一種可一次對位之光捕獲裝置及使用其之染料敏化太陽能電池結構。The present invention relates to a light-trapping device and a dye-sensitized solar cell structure, and more particularly to a light-capturing device that can be aligned once and a dye-sensitized solar cell structure using the same.
我國公開專利第201232791號之「光導引元件及使用其之染料敏化太陽能電池結構」係揭示利用一種光導引元件來提升染料敏化太陽能電池之光捕獲效率。然而,上述之多個光導引元件在與染料敏化太陽能電池進行組裝時,必須逐一進行對位,方能與染料敏化太陽能電池完成光學耦合,且光導引元件數量越多,所需之組裝對位時間就越長,導致組裝成本大幅提高。The "light guiding member and the dye-sensitized solar cell structure using the same" disclosed in Japanese Laid-Open Patent Publication No. 201232791 discloses the use of a light guiding member to enhance the light capturing efficiency of a dye-sensitized solar cell. However, when the above-mentioned plurality of light guiding elements are assembled with the dye-sensitized solar cell, they must be aligned one by one to be optically coupled with the dye-sensitized solar cell, and the more the number of light guiding elements, the required The longer the assembly alignment time, the greater the assembly cost.
因此,有必要提供一創新且具進步性之可一次對位之光捕獲裝置及使用其之染料敏化太陽能電池結構,以解決上述問題。Therefore, it is necessary to provide an innovative and progressive single-alignment light-trapping device and a dye-sensitized solar cell structure using the same to solve the above problems.
本發明提供一種可一次對位之光捕獲裝置,包括:一第一連接件;一第二連接件,相對於該第一連接件;及複數個光導引元件,設置於該第一連接件與該第二連接件之間,各該光導引元件之間具有一槽孔,且各該光導引元件具有一第一端、一第二端、一光入射面、一 第一菱鏡單元及一第二菱鏡單元,各該第一端連接該第一連接件,各該第二端連接該第二連接件,該第一菱鏡單元與該光入射面呈相對設置,該第二菱鏡單元與該第一菱鏡單元呈對稱設置。The present invention provides a light-capturing device that can be aligned once, comprising: a first connecting member; a second connecting member opposite to the first connecting member; and a plurality of light guiding members disposed on the first connecting member Between the second connecting member, each of the light guiding members has a slot, and each of the light guiding members has a first end, a second end, a light incident surface, and a a first prism unit and a second mirror unit, each of the first ends is connected to the first connecting member, and each of the second ends is connected to the second connecting member, and the first prism unit is opposite to the light incident surface The second prism unit is symmetrically disposed with the first prism unit.
本發明另提供一種染料敏化太陽能電池結構,包括:一光電極,具有一入光面及複數個奈米多孔性半導體薄膜;一對電極,係與該光電極呈相對設置;一密封間隔材,設置於該光電極與該對電極之間,該密封間隔材具有複數個容置空間,該光電極之各該奈米多孔性半導體薄膜位於該密封間隔材之各該容置空間;一電解質,填充於該密封間隔材之該等容置空間;及如上述之光捕獲裝置,設置於該光電極之入光面,該光捕獲裝置之各該光導引元件對應該密封間隔材,而該光捕獲裝置之各該槽孔對應該光電極之各該奈米多孔性半導體薄膜。The invention further provides a dye-sensitized solar cell structure, comprising: a photoelectrode having a light incident surface and a plurality of nanoporous semiconductor films; a pair of electrodes disposed opposite to the photoelectrode; and a sealing spacer Between the photoelectrode and the pair of electrodes, the sealing spacer has a plurality of accommodating spaces, and each of the nanoporous semiconductor films of the photoelectrode is located in each of the accommodating spaces of the sealing spacer; Filling the accommodating space of the sealing spacer; and the light capturing device as described above is disposed on the light incident surface of the photoelectrode, and each of the light guiding members of the light capturing device corresponds to the sealing material, and Each of the slots of the light-trapping device corresponds to each of the nanoporous semiconductor thin films of the photoelectrode.
本發明係可使該等光導引元件僅需一次對位,即可與染料敏化太陽能電池完成光學耦合,其功效上可大幅縮短組裝對位時間及降低組裝成本。The invention enables the light guiding elements to be optically coupled with the dye-sensitized solar cell in only one alignment, which can greatly shorten the assembly alignment time and reduce the assembly cost.
為了能夠更清楚瞭解本發明的技術手段,而可依照說明書的內容予以實施,並且為了讓本發明所述目的、特徵和優點能夠更明顯易懂,以下特舉較佳實施例,並配合附圖,詳細說明如下。The embodiments of the present invention can be more clearly understood, and the objects, features, and advantages of the present invention will become more apparent. The details are as follows.
10‧‧‧光捕獲裝置10‧‧‧Light capture device
11‧‧‧第一連接件11‧‧‧First connector
12‧‧‧第二連接件12‧‧‧Second connector
13‧‧‧光導引元件13‧‧‧Light guiding components
13a‧‧‧第一端13a‧‧‧ first end
13b‧‧‧第二端13b‧‧‧second end
131‧‧‧光入射面131‧‧‧light incident surface
132‧‧‧第一菱鏡單元132‧‧‧ first prism unit
132a‧‧‧第一斜面132a‧‧‧First bevel
132b‧‧‧第二斜面132b‧‧‧second slope
132c‧‧‧第一側面132c‧‧‧ first side
133‧‧‧第二菱鏡單元133‧‧‧Second mirror unit
133a‧‧‧第三斜面133a‧‧‧3rd slope
133b‧‧‧第四斜面133b‧‧‧four slope
133c‧‧‧第二側面133c‧‧‧ second side
14‧‧‧槽孔14‧‧‧Slots
20‧‧‧染料敏化太陽能電池結構20‧‧‧Dye-sensitized solar cell structure
21‧‧‧光電極21‧‧‧Photoelectrode
21a‧‧‧入光面21a‧‧‧Into the glossy side
211‧‧‧透明基板211‧‧‧Transparent substrate
212‧‧‧透明導電層212‧‧‧Transparent conductive layer
213‧‧‧奈米多孔性半導體薄膜213‧‧‧Nano porous semiconductor film
22‧‧‧對電極22‧‧‧ opposite electrode
221‧‧‧基板221‧‧‧Substrate
222‧‧‧導電層222‧‧‧ Conductive layer
223‧‧‧催化層223‧‧‧catalytic layer
23‧‧‧密封間隔材23‧‧‧ Sealed partition
231‧‧‧容置空間231‧‧‧ accommodating space
24‧‧‧電解質24‧‧‧ Electrolytes
D1‧‧‧第一連接件之寬度D1‧‧‧Width of the first connector
D2‧‧‧第二連接件之寬度D2‧‧‧Width of the second connector
L1‧‧‧第一長度L1‧‧‧ first length
L2‧‧‧第二長度L2‧‧‧ second length
T‧‧‧光導引元件之厚度Thickness of T‧‧‧Light guiding elements
T1‧‧‧第一連接件之厚度T1‧‧‧ thickness of the first connector
T2‧‧‧第二連接件之厚度T2‧‧‧ thickness of the second connector
W1‧‧‧第一寬度W1‧‧‧ first width
W2‧‧‧第二寬度W2‧‧‧ second width
θ a ‧‧‧第一光學角θ a ‧‧‧first optical angle
θ b ‧‧‧第二光學角θ b ‧‧‧second optical angle
θ c ‧‧‧第三光學角θ c ‧‧‧third optical angle
θ1 ‧‧‧第一夾角θ 1 ‧‧‧first angle
θ2 ‧‧‧第二夾角θ 2 ‧‧‧second angle
圖1顯示本發明可一次對位之光捕獲裝置之結構立體圖;圖2顯示沿圖1之A-A線本發明可一次對位之光捕獲裝置之部分立體圖;圖3顯示本發明可一次對位之光捕獲裝置之剖視圖;圖4顯示本發明使用可一次對位之光捕獲裝置之染料敏化太陽能電池結構之立體圖;及圖5顯示沿圖4之B-B線本發明染料敏化太陽能電池結構之剖視 圖。1 is a perspective view showing the structure of a light-capturing device which can be aligned once in the present invention; FIG. 2 is a partial perspective view showing the light-capturing device of the present invention which can be aligned once along the line AA of FIG. 1. FIG. 3 shows that the present invention can be aligned once. FIG. 4 is a perspective view showing the structure of the dye-sensitized solar cell of the present invention using the light-capturing device of the present invention; and FIG. 5 is a cross-sectional view showing the structure of the dye-sensitized solar cell of the present invention taken along line BB of FIG. Vision Figure.
圖1顯示本發明可一次對位之光捕獲裝置之結構立體圖。圖2顯示沿圖1之A-A線本發明可一次對位之光捕獲裝置之部分立體圖。圖3顯示本發明可一次對位之光捕獲裝置之剖視圖。配合參閱圖1、圖2及圖3,本發明之可一次對位之光捕獲裝置10包括一第一連接件11、一第二連接件12及複數個光導引元件13。該第二連接件12相對於該第一連接件11。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view showing the structure of a light-capturing device which can be aligned once in the present invention. Figure 2 is a partial perspective view of the light-capturing device of the present invention which can be aligned once along the line A-A of Figure 1. Figure 3 shows a cross-sectional view of a light-capturing device that can be aligned once in the present invention. Referring to FIG. 1 , FIG. 2 and FIG. 3 , the light-capturing device 10 of the present invention can include a first connecting member 11 , a second connecting member 12 and a plurality of light guiding members 13 . The second connecting member 12 is opposite to the first connecting member 11.
該等光導引元件13設置於該第一連接件11與該第二連接件12之間,且各該光導引元件13之間具有一槽孔14。The light guiding members 13 are disposed between the first connecting member 11 and the second connecting member 12, and each of the light guiding members 13 has a slot 14 therebetween.
各該光導引元件13具有一第一端13a、一第二端13b、一光入射面131、一第一菱鏡單元132、一第二菱鏡單元133、一第一長度L1、一第一寬度W1及一厚度T。在本實施例中,各該第一端13a連接該第一連接件11,各該第二端13b連接該第二連接件12,該第一菱鏡單元132與該光入射面131呈相對設置,該第二菱鏡單元133與該第一菱鏡單元132呈對稱設置。Each of the light guiding elements 13 has a first end 13a, a second end 13b, a light incident surface 131, a first prism unit 132, a second mirror unit 133, a first length L1, a first A width W1 and a thickness T. In this embodiment, each of the first ends 13a is connected to the first connecting member 11, and each of the second ends 13b is connected to the second connecting member 12. The first rectangular mirror unit 132 is opposite to the light incident surface 131. The second prism unit 133 is symmetrically disposed with the first prism unit 132.
該第一菱鏡單元132具有一第一斜面132a、一第二斜面132b及一第一側面132c,該第二斜面132b相對於該第一斜面132a,該第一側面132c垂直該光入射面131。在本實施例中,該第一斜面132a與該第二斜面132b之間具有一第一光學角θ a ,而該第一側面132c與該第二斜面132b之間具有一第一夾角θ1 。The first prism unit 132 has a first inclined surface 132a, a second inclined surface 132b and a first side surface 132c. The second inclined surface 132b is opposite to the first inclined surface 132a. The first side surface 132c is perpendicular to the light incident surface 131. . In this embodiment, the first inclined surface 132a and the second inclined surface 132b have a first optical angle θ a , and the first side surface 132 c and the second inclined surface 132 b have a first angle θ 1 .
該第二菱鏡單元133具有一第三斜面133a、一第四斜面133b及一第二側面133c,該第四斜面133b相對於該第三斜面133a,該第二側面133c垂直該光入射面131。在本實施例中,該第三斜面133a與該第一菱鏡單元132之第一斜面132a之間具有一第二光學角θ b ,該第三斜面133a與該第四斜面133b之間具有一第三光學角θ c ,而該第二側面133c 與該第四斜面133b之間具有一第二夾角θ2 。The second prism unit 133 has a third inclined surface 133a, a fourth inclined surface 133b and a second side surface 133c. The fourth inclined surface 133b is opposite to the third inclined surface 133a, and the second side surface 133c is perpendicular to the light incident surface 131. . In this embodiment, the third inclined surface 133a and the first inclined surface 132a of the first rectangular mirror unit 132 have a second optical angle θ b , and the third inclined surface 133 a and the fourth inclined surface 133 b have a The third optical angle θ c and the second side 133c and the fourth inclined surface 133b have a second angle θ 2 .
為使各該光導引元件13能順利導引入射之太陽光,在本實施例中,該第二光學角θ b 必須小於該第一光學角θ a ,且當太陽光為正向入射時(即入射角為0°時),較佳地,該第二光學角θ b 係介於50°至60°之間,以使正向入射之太陽光能在該第一斜面132a及該第三斜面133a達成全反射。此外,由於該第二菱鏡單元133係與該第一菱鏡單元132對稱,因此,該第三光學角θ c 係等於該第一光學角θ a ,而該第二夾角θ2 係等於該第一夾角θ1 。In order to enable each of the light guiding elements 13 to smoothly guide the incident sunlight, in the embodiment, the second optical angle θ b must be smaller than the first optical angle θ a and when the sunlight is positively incident. (that is, when the incident angle is 0°), preferably, the second optical angle θ b is between 50° and 60°, so that the positively incident solar light can be at the first inclined surface 132a and the first The three inclined faces 133a achieve total reflection. In addition, since the second prism unit 133 is symmetrical with the first mirror unit 132, the third optical angle θ c is equal to the first optical angle θ a , and the second angle θ 2 is equal to the The first angle θ 1 .
又,在本實施例中,該第一光學角θ a 係可由該第二光學角θ b 及該第一夾角θ1 求得,其計算公式為θ a =180°-θ1 +θ b /2,而該第一夾角θ1 與該第二光學角θ b 之關係為θ1 =θ b +90°,故該第一光學角θ a 之計算公式亦可簡化為θ a =90°-θ b /2。因此,當該第二光學角θ b 確定後,即可計算出該第一光學角θ a 及該第一夾角θ1 。Moreover, in this embodiment, the first optical angle θ a can be obtained from the second optical angle θ b and the first included angle θ 1 , and the calculation formula is θ a =180°−θ 1 +θ b / 2, and the relationship between the first angle θ 1 and the second optical angle θ b is θ 1 = θ b +90°, so the calculation formula of the first optical angle θ a can also be simplified as θ a =90°- θ b /2. Therefore, when the second optical angle θ b is determined, the first optical angle θ a and the first included angle θ 1 can be calculated.
各該槽孔14具有一第二長度L2及一第二寬度W2,較佳地,各該槽孔14之第二長度L2係等於各該光導引元件13之第一長度L1,而各該槽孔14之第二寬度W2不小於各該光導引元件13之第一寬度W1,以避免相鄰之光導引元件13間相互干涉,而降低光捕獲效率。Each of the slots 14 has a second length L2 and a second width W2. Preferably, the second length L2 of each of the slots 14 is equal to the first length L1 of each of the light guiding elements 13. The second width W2 of the slot 14 is not less than the first width W1 of each of the light guiding elements 13 to prevent mutual interference between the adjacent light guiding elements 13, thereby reducing light capturing efficiency.
另外,為輔助該等光導引元件13對位後之定位,在本實施例中,該第一連接件11之寬度D1及該第二連接件12之寬度D2小於各該光導引元件13之第一長度L1,而該第一連接件11之厚度T1及該第二連接件12之厚度T2不小於各該光導引元件13之厚度T。較佳地,該第一連接件11之厚度T1及該第二連接件12之厚度T2係等於各該光導引元件13之厚度T。In addition, in the present embodiment, the width D1 of the first connecting member 11 and the width D2 of the second connecting member 12 are smaller than each of the light guiding members 13 in order to facilitate positioning of the light guiding members 13 after alignment. The first length L1, and the thickness T1 of the first connecting member 11 and the thickness T2 of the second connecting member 12 are not less than the thickness T of each of the light guiding members 13. Preferably, the thickness T1 of the first connecting member 11 and the thickness T2 of the second connecting member 12 are equal to the thickness T of each of the light guiding members 13.
圖4顯示本發明使用可一次對位之光捕獲裝置之染料敏化太陽能電池結構之立體圖。圖5顯示沿圖4之B-B線本發明染料敏化太陽能電池結構之剖視圖。配合參閱圖4及圖5,本發明使用該光捕獲裝置10之 染料敏化太陽能電池結構20包括一光電極21、一對電極22、一密封間隔材23、一電解質24及該光捕獲裝置10。Figure 4 is a perspective view showing the structure of a dye-sensitized solar cell of the present invention using a light-capturing device which can be aligned once. Figure 5 is a cross-sectional view showing the structure of the dye-sensitized solar cell of the present invention taken along line B-B of Figure 4 . Referring to FIG. 4 and FIG. 5, the present invention uses the light capturing device 10 The dye-sensitized solar cell structure 20 includes a photoelectrode 21, a pair of electrodes 22, a sealing spacer 23, an electrolyte 24, and the light capturing device 10.
該光電極21具有一入光面21a、一透明基板211、一透明導電層212及複數個奈米多孔性半導體薄膜213。The photoelectrode 21 has a light incident surface 21a, a transparent substrate 211, a transparent conductive layer 212, and a plurality of nanoporous semiconductor thin films 213.
該對電極22係與該光電極21呈相對設置,且該對電極22具有一基板221、一導電層222及一催化層223。The pair of electrodes 22 are disposed opposite to the photoelectrode 21, and the pair of electrodes 22 has a substrate 221, a conductive layer 222, and a catalytic layer 223.
該密封間隔材23設置於該光電極21與該對電極22之間,該密封間隔材23具有複數個容置空間231,該光電極21之各該奈米多孔性半導體薄膜213位於該密封間隔材23之各該容置空間231。The sealing spacer 23 is disposed between the photoelectrode 21 and the pair of electrodes 22. The sealing spacer 23 has a plurality of accommodating spaces 231, and each of the nanoporous semiconductor films 213 of the photoelectrode 21 is located at the sealing interval. Each of the materials 23 accommodates the space 231.
該電解質24填充於該密封間隔材23之該等容置空間231。The electrolyte 24 is filled in the accommodating spaces 231 of the sealing spacer 23 .
該光捕獲裝置10設置於該光電極21之入光面21a,該光捕獲裝置10之各該光導引元件13對應該密封間隔材23,而該光捕獲裝置10之各該槽孔14對應該光電極21之各該奈米多孔性半導體薄膜213。The light-trapping device 10 is disposed on the light-incident surface 21a of the photo-electrode 21, and each of the light-guiding elements 13 of the light-trapping device 10 corresponds to the spacer 23, and each of the slots 14 of the light-trapping device 10 Each of the nanoporous semiconductor thin films 213 of the photoelectrode 21 should be used.
在本實施例中,該光捕獲裝置10設置於該光電極21之入光面21a後,僅需將該光捕獲裝置10之其中之一槽孔14對準其相對應之奈米多孔性半導體薄膜213,即可同時讓該等光導引元件13一次對位完成,因此,無須再針對各別光導引元件13進行多次對位,大幅縮短了組裝對位時間。In this embodiment, after the light capturing device 10 is disposed on the light incident surface 21a of the photoelectrode 21, only one of the slots 14 of the light capturing device 10 needs to be aligned with its corresponding nanoporous semiconductor. The film 213 can simultaneously complete the alignment of the light guiding elements 13 at one time. Therefore, it is no longer necessary to perform multiple alignments for the respective light guiding elements 13, which greatly shortens the assembly alignment time.
當然,在另一實施例中,亦可將該光捕獲裝置10之其中之一光導引元件13對準其相對應之密封間隔材23,同樣可讓其它光導引元件13一次對位完成。Of course, in another embodiment, one of the light guiding elements 13 of the light capturing device 10 can also be aligned with its corresponding sealing spacer 23, and the other light guiding elements 13 can also be aligned once. .
在該等光導引元件13對位完成後,將該光捕獲裝置10之該第一連接件11及該第二連接件12固定於該光電極21之入光面21a,即完成該等光導引元件13與染料敏化太陽能電池之光學耦合。After the alignment of the light guiding elements 13 is completed, the first connecting member 11 and the second connecting member 12 of the light capturing device 10 are fixed to the light incident surface 21a of the photoelectrode 21, that is, the light is completed. The guiding element 13 is optically coupled to the dye-sensitized solar cell.
上述實施例僅為說明本發明之原理及其功效,並非限制本發明,因此習於此技術之人士對上述實施例進行修改及變化仍不脫本發 明之精神。本發明之權利範圍應如後述之申請專利範圍所列。The above embodiments are merely illustrative of the principles and functions of the present invention, and are not intended to limit the present invention. Therefore, those skilled in the art can make modifications and changes to the above embodiments. The spirit of the Ming. The scope of the invention should be as set forth in the appended claims.
10‧‧‧光捕獲裝置10‧‧‧Light capture device
11‧‧‧第一連接件11‧‧‧First connector
12‧‧‧第二連接件12‧‧‧Second connector
13‧‧‧光導引元件13‧‧‧Light guiding components
13a‧‧‧第一端13a‧‧‧ first end
13b‧‧‧第二端13b‧‧‧second end
131‧‧‧光入射面131‧‧‧light incident surface
14‧‧‧槽孔14‧‧‧Slots
D1‧‧‧第一連接件之寬度D1‧‧‧Width of the first connector
D2‧‧‧第二連接件之寬度D2‧‧‧Width of the second connector
L1‧‧‧第一長度L1‧‧‧ first length
L2‧‧‧第二長度L2‧‧‧ second length
T1‧‧‧第一連接件之厚度T1‧‧‧ thickness of the first connector
T2‧‧‧第二連接件之厚度T2‧‧‧ thickness of the second connector
W1‧‧‧第一寬度W1‧‧‧ first width
W2‧‧‧第二寬度W2‧‧‧ second width
Claims (10)
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TW201232791A (en) * | 2011-01-28 | 2012-08-01 | Univ Nat Sun Yat Sen | Light guide component and dye-sensitized solar cell of using the same |
US20120240975A1 (en) * | 2011-03-25 | 2012-09-27 | Sony Corporation | Photoelectric conversion device, photoelectric conversion device array, fabrication method for photoelectric conversion device and electronic apparatus |
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TW201232791A (en) * | 2011-01-28 | 2012-08-01 | Univ Nat Sun Yat Sen | Light guide component and dye-sensitized solar cell of using the same |
US20120240975A1 (en) * | 2011-03-25 | 2012-09-27 | Sony Corporation | Photoelectric conversion device, photoelectric conversion device array, fabrication method for photoelectric conversion device and electronic apparatus |
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