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Formation of polaron pairs and time-resolved photogeneration of free charge carriers in p-conjugated polymers
https://nitech.repo.nii.ac.jp/records/4837
https://nitech.repo.nii.ac.jp/records/4837af82e7ac-6806-4063-b4b3-f1e59221053d
名前 / ファイル | ライセンス | アクション |
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本文_fulltext (244.5 kB)
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(c)2000 The American Physical Society
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-11-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Formation of polaron pairs and time-resolved photogeneration of free charge carriers in p-conjugated polymers | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Frankevich, Eugene L.
× Frankevich, Eugene L.× Ishii, Hisao× Hamanaka, Yasushi× Yokoyama, Takahiro× Fuji, Akihiko× Li, Sergey× Yoshino, Katsumi× Nakamura, Arao× Seki, Kazuhiko |
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著者別名 | ||||||
姓名 | Hamanaka, Yasushi | |||||
書誌情報 |
PHYSICAL REVIEW B 巻 62, 号 4, p. 2505-2515, 発行日 2000-07-15 |
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出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 10980121 | |||||
書誌レコードID(NCID) | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11187113 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | We have performed in the present work time-resolved experiments on poly(3-dodecyl-thiophene) (P3DDT) and poly(2,5-dioctyloxy-p-phenylene vinylene) (OO-PPV) films by directly probing the formation of charge carriers responsible for the cw photoconductivity within the time domain of -10 ps to 1 ns. Laser light pulses of 400 nm wavelength, 150 fs width, induced photoconductivity in a sample with a frequency 1 kHz. Red 800 nm light pulses delayed in respect to blue ones were revealed to affect the photoconductivity. The effect of the second pulses increased with the delay time. Red light induced changes of the photoconductivity were positive in OO-PPV, and negative in P3DDT. These results are rationalized as an evidence of delayed not immediate formation of free charge carriers. The carriers seem to be formed within 10 ps after the pumping pulse. A mechanism of formation of free polarons from polaron pair is suggested, which has permitted to explain main feature of the results including different signs of the effect of the red light in different polymers. | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf |