DYE-SENSITIZED PHOTO-ELECTRIC CONVERSION ELEMENT AND METHOD FOR MANUFACTURING DYE-SENSITIZED SOLAR BATTERY USING THE SAME

PROBLEM TO BE SOLVED: To provide a photoelectrode layer having high photo-electric conversion efficiency without setting a new process of pressing or the like, in a film-type dye-sensitized solar battery manufactured by a low-temperature film-forming process substantially eliminating a binder.SOLUTI...

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Hauptverfasser:	AOYAMA KOSUKE, KOGURE HIDEO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SEMICONDUCTOR DEVICES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a photoelectrode layer having high photo-electric conversion efficiency without setting a new process of pressing or the like, in a film-type dye-sensitized solar battery manufactured by a low-temperature film-forming process substantially eliminating a binder.SOLUTION: A dye-sensitized photo-electric conversion element includes a photoelectrode layer 1 comprising dye-sensitized porous semiconductor fine particles 13 and a dicarboxylic acid, an electrolyte layer 2, and a counter electrode layer 3, in this order on a conductive substrate 31. The dicarboxylic acid is a saturated aliphatic or saturated alicyclic dicarboxylic acid having 1 to 4 carbon atoms on a straight chain between carbonyl carbons. The carboxylic acid is introduced into the photoelectrode layer 1 by immersing the layer in an acid single solution or an acid-dye mixture solution or by preliminarily adding the acid into a dispersion liquid of porous semiconductor fine particles. 【課題】実質的にバインダーを含まない低温製膜法によるフィルム型色素増感型太陽電池において、プレス処理等の新たな工程を設けることなく、光電変換効率の高い光電極層を提供する。【解決手段】導電性基板３１上に、色素増感された多孔質半導体微粒子１３とジカルボン酸とからなる光電極層１、電解液層２および対向電極層３をこの順で有する色素増感型光電変換素子において、前記ジカルボン酸はカルボニル炭素間の直鎖炭素原子数が１〜４の飽和脂肪族または飽和脂環式ジカルボン酸であることを特徴とする色素増感型光電変換素子である。光電極層１へのカルボン酸の導入は、酸単独溶液または酸色素混合溶液への浸漬法、多孔質半導体微粒子分散液への添加により行う。【選択図】図１