論文名 | Spectroscopic investigation of excitons, photocarriers, and bias-induced carriers in regioregular poly(3-alkylthiophene) |
著者名 | |
著者名(別言語) | 鐘本, 勝一 / 安井, 基晃 / 樋口, 達也 / 小澄, 大輔 / 赤井, 一郎 / 唐沢, 力 / 橋本, 秀樹 |
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抄録・内容(英) | Excitons, photocarriers, and bias-induced carriers in regioregular poly(3-alkylthiophene) (P3AT) films were investigated using a variety of spectroscopic techniques, such as continuous-wave- (cw-) and femtosecond (fs-) transient photoinduced absorption (PIA) and device modulation (DM) spectroscopies. Comparison between the cw PIA and DM spectra of the poly(3-hexylthiophene) (P3HT) film reveals that photocarriers generated by cw photoexcitation are dominated by localized polarons, whereas charge injection primarily creates delocalized polarons. The photoexcitation intensity dependence of the cw PIA signals demonstrates that both localized and delocalized photogenerated polarons obey a bimolecular recombination process under cw photoexcitation.... |
備考 | This work was supported in part by a Grant-in-Aid (No.10016820) from the Japanese Ministry of Education, Culture, Sports, Science, and Technology. K.K. acknowledges a fund from the CASIO Science Promotion Foundation. H.H. would like to thank the Nissan Foundation and HFSP for financial support. |
言語 | eng |
ページ開始 | 205203 |
著者版フラグ | publisher |
著者所属(英) | Osaka City University / Osaka City University / Osaka City University / Osaka City University / Kumamoto University / Osaka City University / Osaka City University |
1人目の著者情報 : KAKEN | |
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4人目の著者情報 : KAKEN | |
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5人目の著者情報 : KAKEN | |
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6人目の著者情報 : KAKEN | |
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7人目の著者情報 : KAKEN | |
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刊行年月 | 2011-05-15 |
出版社 | American Physical Society |
ISSN | 2469-9969 |
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資料種別(英語) | Journal Article |
DOI | https://doi.org/10.1103/PhysRevB.83.205203 |
権利 | © American Physical Society. This article may be downloaded for personal use only. Any other use requires prior permission of the author and American Physical Society. The following article appeared in Physical Review B Vol.83, Iss.20 and may be found at https://doi.org/10.1103/PhysRevB.83.205203 |