JPWO2006038495A1 - 色素増感太陽電池及びその製造方法 - Google Patents
色素増感太陽電池及びその製造方法 Download PDFInfo
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- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M14/00—Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
- H01M14/005—Photoelectrochemical storage cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
-
- 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
- Y02E10/542—Dye sensitized solar 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hybrid Cells (AREA)
- Photovoltaic Devices (AREA)
Abstract
Description
本発明の色素増感太陽電池の基本構成は、図1に示すように基板1上に、導電層2と色素吸着金属酸化物層3の順に積層された表面電極10と、基板4上に導電層5が設けられた対向電極11を有し、両電極間に電解質6を配した構成である。そして、表面電極10の内面側には色素吸着金属酸化物層3があり、これを半導体電極という。色素吸着金属酸化物層は、酸化チタン粒子等の金属酸化物粒子とこの粒子間の間隙を埋めるように又は粒子の表面を覆うように存在する増感色素からなっている。なお、光は表面電極10側から入る。
また、t-ブチルピリジンや、2-ピコリン、2,6-ルチジン等の塩基性化合物を前述の溶液電解質、溶融塩電解質組成物に添加することも好ましい電解質層を与える。
実施例1〜4
このFTO膜を、アルミナを主体とする超微粒子のスラリー研磨剤と繊維製の研磨パッドを用い、手動にて研磨を行った。研磨処理時間を、3分、6分、9分及び12分と変えた4種の導電性膜付き基板を得た。これらの基板について、AFMにて平均粗さRaを求めたところ、各々のRaは8.65nm(実施例1)、2.17nm(実施例2)、1.96nm(実施例3)及び1.72nm(実施例4)であった。図4に、研磨時間を0分、3分、6分、9分又は12分としたときの、各基板表面のAFM観察図を示す。
酸化チタンは、市販の酸化チタンペースト(ソラロニクス社製Dペースト)を使用した。
前記熱可塑性接着剤フィルムの隙間から、0.5MのLiI、0.5Mのt-ブチルピリジンと、0.05Mのヨウ素を主成分として含むアセトニトリル溶液を毛細管現象を利用して基材と正極の間に満たした。電解質を満たした後、直ちに前記隙間をエポキシ樹脂接着剤で封止して、色素増感型太陽電池を得た。
Claims (5)
- 基板、透明導電膜及び増感色素吸着金属酸化物の順に積層されてなる表面側電極とこれに対向して設けられる対向面側電極の間に電解質を配した色素増感太陽電池において、表面側電極の透明導電膜の増感色素吸着金属酸化物と接する面の表面粗さRaが0.1〜10nmの範囲に平滑化されていることを特徴とする色素増感太陽電池。
- 透明導電膜が、基板上に透明導電膜をスプレー法又は蒸着法により形成したのち、その表面を平滑化処理したものである請求項1記載の色素増感太陽電池。
- 平滑化処理が研磨処理である請求項2記載の色素増感太陽電池。
- 増感色素吸着金属酸化物が、増感色素吸着酸化チタンであり、その平均粒子径が5〜500nmである請求項1又は2記載の色素増感太陽電池。
- 基板、透明導電膜及び増感色素吸着金属酸化物の順に積層されてなる表面側電極とこれに対向して設けられる対向面側電極の間に電解質を配した色素増感太陽電池の製造方法において、基板上に透明導電膜を蒸着法により形成したのち、その表面を平滑化処理して表面粗さRaを0.1〜10nmの範囲にし、この上に増感色素吸着金属酸化物の層を設けることを特徴とする色素増感太陽電池の製造方法。
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