A dye-sensitized solar cell using pheophytin-carotenoid adduct: Enhancement of photocurrent by electron and singlet-energy transfer and by suppression of singlet-triplet annihilation due to the presence of the carotenoid moiety
著者
和文:
Wang Xiao-Feng,
Koyama Yasushi,
和田 雄二,
Sasaki Shin-ichi,
Tamiaki Hitoshi.
英文:
Wang Xiao-Feng,
Koyama Yasushi,
Wada Yuji,
Sasaki Shin-ichi,
Tamiaki Hitoshi.
言語
English
掲載誌/書名
和文:
英文:
Chemical Physics Letters
巻, 号, ページ
Vol. 439
No. 1-3
pp. 115-120
出版年月
2007年1月
出版者
和文:
英文:
Elsevier B.V.
会議名称
和文:
英文:
開催地
和文:
英文:
アブストラクト
Titania-based solar cells were fabricated using a pheophytin deriv. and a pheophytin-carotenoid adduct. The addn. of the carotenoid moiety increased the photocurrent (Jsc = 3.7 6.0 mA cm-2), reduced the photovoltage (Voc = 0.53 0.46 V), and enhanced the solar energy-to-electricity conversion efficiency ( = 1.4 1.8%). The increase in photocurrent was explained in terms of electron and singlet-energy transfer from the carotenoid to the chlorin moiety as well as the prevention of the chlorin aggregate by the bulky carotenoid moiety and the resultant suppression of the singlet-triplet annihilation reaction.
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