JPS6380413A - Transparent conductor - Google Patents

Transparent conductor

Info

Publication number
JPS6380413A
JPS6380413A JP61225351A JP22535186A JPS6380413A JP S6380413 A JPS6380413 A JP S6380413A JP 61225351 A JP61225351 A JP 61225351A JP 22535186 A JP22535186 A JP 22535186A JP S6380413 A JPS6380413 A JP S6380413A
Authority
JP
Japan
Prior art keywords
film
transparent
tin oxide
transparent conductive
transparent conductor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP61225351A
Other languages
Japanese (ja)
Other versions
JPH0734329B2 (en
Inventor
昌宏 平田
雅郎 御園生
秀夫 河原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP61225351A priority Critical patent/JPH0734329B2/en
Publication of JPS6380413A publication Critical patent/JPS6380413A/en
Publication of JPH0734329B2 publication Critical patent/JPH0734329B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Landscapes

  • Non-Insulated Conductors (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Photovoltaic Devices (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は透明導電体、特に太陽電池用透明電極として最
適な透明導電体に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a transparent conductor, particularly a transparent conductor suitable as a transparent electrode for solar cells.

〔従来の技術〕[Conventional technology]

近年、ガラス等の透明基体上に透明導電膜を形成し次い
で非晶質シリコン(a−Si)を主成分とする光電変換
素子を形成し、その後Al 等の電極を形成した低コス
トの太陽電池が知られている。かかるa−9i太VAX
池は、光電変換効率が他の結晶半導体を用いた太陽電池
に比べ低いことがらそれを大にするため種々の対策が施
されている。
In recent years, low-cost solar cells have been developed in which a transparent conductive film is formed on a transparent substrate such as glass, then a photoelectric conversion element mainly composed of amorphous silicon (a-Si) is formed, and then electrodes such as Al are formed. It has been known. It takes a-9i thick VAX
Since the photoelectric conversion efficiency of solar cells is lower than that of solar cells using other crystalline semiconductors, various measures have been taken to increase it.

そのひとつとして、フッ素やアンチモン等をドープした
酸化錫を主成分とする低抵抗の透明導電膜が透明電極と
して用いられる。
As one of these, a low-resistance transparent conductive film whose main component is tin oxide doped with fluorine, antimony, etc. is used as a transparent electrode.

〔発明が解決しようとする間頴点〕[Intermediate point that the invention attempts to solve]

しかしながら、通常a−3i膜の形虜に用いられるグロ
ー放電法ではa−8i膜形成時に透明膜N膜が水素プラ
ズマにさらされるため、透明導電膜である酸化錫膜表面
が還元され、その結果、可視光透過率の減少、面積抵抗
の増加がおこり、酸化錫を主成分とする透明導電膜を透
明電極として用いた太陽電池では変換効率の向上に限度
があった。
However, in the glow discharge method normally used to form the a-3i film, the transparent film N film is exposed to hydrogen plasma during the formation of the a-8i film, so the surface of the tin oxide film, which is a transparent conductive film, is reduced, and as a result, , a decrease in visible light transmittance and an increase in sheet resistance occurred, and there was a limit to the improvement in conversion efficiency in solar cells using a transparent conductive film containing tin oxide as a main component as a transparent electrode.

〔間1点を解決するための手段〕 本発明は前記間順点を解決するためになされたものであ
って太陽電池の変換効率を高めるのに好運な透明導電体
を提供するものである。
[Means for Solving the Problem] The present invention has been made to solve the above-mentioned problem, and provides a transparent conductor suitable for increasing the conversion efficiency of solar cells.

すなわち、本発明は透明基体と、該6四基体表面上に形
成された酸化錫を主成分とする透明導電13と、該透明
導電膜上に形成されたチタン、亜鉛、及びアンチモンの
いずれがの酸化物、またはそれらの混合酸化物からなる
透明膜とからなる透明導電体である。
That is, the present invention provides a transparent substrate, a transparent conductive material 13 formed on the surface of the substrate and containing tin oxide as a main component, and which of titanium, zinc, and antimony formed on the transparent conductive film. It is a transparent conductor consisting of a transparent film made of an oxide or a mixed oxide thereof.

本発明において、酸化錫を主成分とする透明導電膜はフ
ッ素がドープされた酸化錫膜であることが好ましく、ま
たチタン、亜鉛、及びアンチモンノ夫々ノ酸化物カTi
O2、ZnO、及ヒ5b203テアルことが好ましい。
In the present invention, the transparent conductive film containing tin oxide as a main component is preferably a tin oxide film doped with fluorine, and is preferably a tin oxide film doped with fluorine.
O2, ZnO, and 5b203teal are preferred.

また本発明において、チタン、亜鉛、及ヒアンチモンの
酸化物、またはそれらの混合酸化物からなる透明膜の厚
みは水素プラズマに耐えることと被膜の断面方向の抵抗
値を小さくするため、soX乃至200kにすることが
好ましい。
In addition, in the present invention, the thickness of the transparent film made of oxides of titanium, zinc, and antimony, or mixed oxides thereof is set to soX or 200k in order to withstand hydrogen plasma and to reduce the resistance value in the cross-sectional direction of the film. It is preferable to do so.

本発明のフッ素をドープした酸化錫膜はスパッタリング
法、イオンブレーティング法、スプレー熱分解法、及び
CVD法のいずれでも形成でき、低抵抗で、且つ高透明
性を得るには常圧CVD法で形成するのが好ましい。
The fluorine-doped tin oxide film of the present invention can be formed by any of the sputtering method, ion blating method, spray pyrolysis method, and CVD method, and the atmospheric pressure CVD method is used to obtain low resistance and high transparency. It is preferable to form.

常圧CVD法によりフッ素をドープした酸化錫膜の形成
に用いることのできる銅原料としては3nC14+O4
Hg5nC1!31 (OH:3)2SnC121(C
nHzn+1)4Sn(n−/Q−’I ) r (O
H3)2SnH2r (C4H9) 3snHおヨヒ(
C4H9>2Sn(C00CH3)2等の錫化合物を用
いることができ、ドーパントとしては、CH30HF2
+CH3CC/F2.CHClF2.CHF3 、CF
2Cji’2.CF3Cl、CF3Br等を用いること
ができる。
The copper raw material that can be used to form a fluorine-doped tin oxide film by atmospheric pressure CVD is 3nC14+O4.
Hg5nC1!31 (OH:3)2SnC121(C
nHzn+1)4Sn(n-/Q-'I) r (O
H3) 2SnH2r (C4H9) 3snH Oyohi (
A tin compound such as C4H9>2Sn(C00CH3)2 can be used, and as a dopant, CH30HF2
+CH3CC/F2. CHClF2. CHF3, CF
2Cji'2. CF3Cl, CF3Br, etc. can be used.

本発明中のTiO2、ZnOまたはSb2O3膜(これ
らをMeOX膜と総称する)の形成法としては、蒸着法
、スパッタリング法、スプレー法、CvD法等イずれの
方法でもよい。また、MeOX膜に微量の不純物を混入
させ、比抵抗を小さくしたもの、例えばZnO膜にAl
 l In等の3価の不純物を混入したものを用いるこ
とができる。
The TiO2, ZnO, or Sb2O3 film (collectively referred to as MeOX film) in the present invention may be formed by any method such as vapor deposition, sputtering, spraying, or CvD. In addition, a small amount of impurity is mixed into the MeOX film to reduce the specific resistance, for example, a ZnO film with Al
A material mixed with a trivalent impurity such as lIn can be used.

〔作 用〕[For production]

本発明は酸化錫を主成分とする透明導電膜上にチタン、
亜鉛、及びアンチモンのいずれかの酸化物、またはそれ
らの混合酸化物からなる透明膜を形成したものであるの
で、該透明膜上にa−Si膜を形成する際の水素プラズ
マによる該透明導電膜の劣化を該透明膜により防ぐこと
ができる。
The present invention uses titanium on a transparent conductive film whose main component is tin oxide.
Since a transparent film is formed from an oxide of either zinc or antimony, or a mixed oxide thereof, the transparent conductive film is formed by hydrogen plasma when forming an a-Si film on the transparent film. can be prevented from deteriorating by the transparent film.

〔実 施 例〕〔Example〕

大きさがjO(馴)×!QC馴)、厚味へ/(朋)の酸
化珪素被膜付ソーダライムガラスを十分に洗浄、乾燥し
、ガラス基板とした。
The size is jO (familiar) ×! Soda lime glass with a silicon oxide coating was thoroughly washed and dried to prepare a glass substrate.

このガラス基板上に以下のようにして、透明導電膜を形
成した。
A transparent conductive film was formed on this glass substrate in the following manner.

四塩化錫(無水)の蒸気、水蒸気、酸素ガス、へ/−ジ
フルオロエタンガスおよび窒素ガスの調整された混合気
体を用い、CVD法により550℃に加へされたガラス
基板上にフッ素をドープした5n02 m (以下5n
02: li’膜)を形成した。得られた5n02 :
 F膜の厚みは2000Xであった。
Fluorine-doped 5n02 was prepared on a glass substrate heated to 550°C by CVD using a controlled gas mixture of tin tetrachloride (anhydrous) vapor, water vapor, oxygen gas, difluoroethane gas, and nitrogen gas. m (hereinafter 5n
02: li' film) was formed. Obtained 5n02:
The thickness of the F film was 2000X.

この5n02:F膜を堆積させたガラスを室温まで徐冷
した後5n02:F膜上に電子ビーム&a法を用いてM
eQX膜を形成した。蒸着時の真空度は1O−6Tor
r以下であり、得られたMeOx膜の厚みは約j□Aで
あった。これら3種の試料を以下TiO2/5no2:
F + ZnO/5n02 :F + 5b203/5
n02 :li’  二層膜と呼ぶ。
After slowly cooling the glass on which the 5n02:F film was deposited to room temperature, M
An eQX film was formed. The degree of vacuum during vapor deposition is 1O-6 Torr.
r or less, and the thickness of the obtained MeOx film was approximately j□A. These three types of samples are as follows: TiO2/5no2:
F + ZnO/5n02 :F + 5b203/5
n02 :li' It is called a two-layer film.

また、比較のために、MeOX膜を形成しない厚み20
00Aの5n02 : F膜(以下5n02:F*層膜
と呼ぶ)を上記と同様の方法で形成した。
Also, for comparison, a thickness of 20
A 5n02:F film of 00A (hereinafter referred to as 5n02:F* layer film) was formed in the same manner as above.

これら4種類の試料を平行平板型プラズマCVD装置に
より圧力j TOrr 、放wit力密度0.60”l
i/cd。
These four types of samples were heated using a parallel plate plasma CVD apparatus at a pressure of j TOrr and a force density of 0.60"l.
i/cd.

基板温度J 00”Cの条件下で、水素プラズマにさら
した。放電時間を変え、試料の可視光透過率を測定した
。また、30秒の放電前後における面積抵抗を測定した
The sample was exposed to hydrogen plasma at a substrate temperature of J 00''C. The visible light transmittance of the sample was measured while varying the discharge time. Also, the sheet resistance before and after 30 seconds of discharge was measured.

夫々の測定結果を、第1図及び第1表に示す。The respective measurement results are shown in FIG. 1 and Table 1.

第1表 以上の結果により、本発明による透明導電体は従来のも
のに比べ水素プラズマによる可視光透過率の減少、およ
び面積抵抗増加の度合いが小さい。
According to the results shown in Table 1 and above, the transparent conductor according to the present invention has a smaller decrease in visible light transmittance due to hydrogen plasma and a smaller increase in sheet resistance than conventional ones.

〔発明の効果〕〔Effect of the invention〕

本発明によれば実施例からも明らかなとおり、耐プラズ
マ性に優れた透明導電膜を得ることができる。
According to the present invention, as is clear from the Examples, a transparent conductive film having excellent plasma resistance can be obtained.

また本発明は、太陽電池用透明導電極として好適なもの
であることが明らかである。
Moreover, it is clear that the present invention is suitable as a transparent conductive electrode for solar cells.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の透明導電体と比較例との水素プラズマ
に遍したときの可視光透過率の変化を示す図である。
FIG. 1 is a diagram showing changes in visible light transmittance of the transparent conductor of the present invention and a comparative example when exposed to hydrogen plasma.

Claims (4)

【特許請求の範囲】[Claims] (1)透明基体と、該透明基体表面上に形成された酸化
錫を主成分とする透明導電膜と、該透明導電膜上に形成
されたチタン、亜鉛、及びアンチモンのいずれかの酸化
物、またはそれらの混合酸化物からなる透明膜とからな
る透明導電体。
(1) a transparent substrate, a transparent conductive film mainly composed of tin oxide formed on the surface of the transparent substrate, and an oxide of titanium, zinc, or antimony formed on the transparent conductive film; or a transparent conductor made of a transparent film made of a mixed oxide thereof.
(2)前記酸化錫を主成分と透明導電膜がフッ素をドー
プした酸化錫膜である特許請求の範囲第1項に記載の透
明導電体。
(2) The transparent conductor according to claim 1, wherein the transparent conductive film is mainly composed of tin oxide and is a tin oxide film doped with fluorine.
(3)前記チタン、亜鉛、及びアンチモンの夫々の酸化
物がTiO_2、ZnO、及びSb_2O_3である特
許請求の範囲第1項または第2項に記載の透明導電体。
(3) The transparent conductor according to claim 1 or 2, wherein the respective oxides of titanium, zinc, and antimony are TiO_2, ZnO, and Sb_2O_3.
(4)前記チタン、亜鉛、及びアンチモンの酸化物、ま
たはそれらの混合酸化物からなる透明膜の厚みが50Å
乃至200Åである特許請求の範囲第1項乃至第3項の
いずれかの透明導電体。
(4) The thickness of the transparent film made of oxides of titanium, zinc, and antimony, or mixed oxides thereof is 50 Å.
The transparent conductor according to any one of claims 1 to 3, which has a thickness of 200 Å to 200 Å.
JP61225351A 1986-09-24 1986-09-24 Transparent conductor Expired - Lifetime JPH0734329B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61225351A JPH0734329B2 (en) 1986-09-24 1986-09-24 Transparent conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61225351A JPH0734329B2 (en) 1986-09-24 1986-09-24 Transparent conductor

Publications (2)

Publication Number Publication Date
JPS6380413A true JPS6380413A (en) 1988-04-11
JPH0734329B2 JPH0734329B2 (en) 1995-04-12

Family

ID=16827977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61225351A Expired - Lifetime JPH0734329B2 (en) 1986-09-24 1986-09-24 Transparent conductor

Country Status (1)

Country Link
JP (1) JPH0734329B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005027229A1 (en) * 2003-08-29 2005-03-24 Asahi Glass Company, Limited Base with transparent conductive film and method for producing same
JP2005244073A (en) * 2004-02-27 2005-09-08 National Institute Of Advanced Industrial & Technology Solar cell and method for manufacturing the same
JP4516657B2 (en) * 1999-06-18 2010-08-04 日本板硝子株式会社 SUBSTRATE FOR PHOTOELECTRIC CONVERSION DEVICE, ITS MANUFACTURING METHOD, AND PHOTOELECTRIC CONVERSION DEVICE USING THE SAME
JP2021012948A (en) * 2019-07-05 2021-02-04 Agc株式会社 Transparent electrode substrate and solar battery

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6733889B2 (en) 2002-05-14 2004-05-11 Pilkington North America, Inc. Reflective, solar control coated glass article

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149607A (en) * 1983-02-15 1984-08-27 松下電器産業株式会社 Transparent electrode

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149607A (en) * 1983-02-15 1984-08-27 松下電器産業株式会社 Transparent electrode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4516657B2 (en) * 1999-06-18 2010-08-04 日本板硝子株式会社 SUBSTRATE FOR PHOTOELECTRIC CONVERSION DEVICE, ITS MANUFACTURING METHOD, AND PHOTOELECTRIC CONVERSION DEVICE USING THE SAME
WO2005027229A1 (en) * 2003-08-29 2005-03-24 Asahi Glass Company, Limited Base with transparent conductive film and method for producing same
JP2005244073A (en) * 2004-02-27 2005-09-08 National Institute Of Advanced Industrial & Technology Solar cell and method for manufacturing the same
JP2021012948A (en) * 2019-07-05 2021-02-04 Agc株式会社 Transparent electrode substrate and solar battery

Also Published As

Publication number Publication date
JPH0734329B2 (en) 1995-04-12

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