Neutral excitons and metastable charged polarons in 5,5 '-bis-(2-phenylethylnyl)-2,2 '-bithienyl
文献类型：期刊论文
| 作者 | Kim, YH ; Deng, TZ ; Feng, BH ; Nie, YX ; Zhao, ZX ; Zimmer, H ; Sudsuansri, K |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1998 |
| 卷号 | 57期号:15页码:9336 |
| 关键词 | CONDUCTING POLYMERS INFRARED ACTIVITY POLY(PHENYLENE VINYLENE) CONJUGATED POLYMERS POLYACETYLENE MODEL STATE PHOTOGENERATION PHOTOEXCITATION OLIGOTHIOPHENES |
| ISSN号 | 0163-1829 |
| 通讯作者 | Kim, YH (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | We have carried out steady-state photoinduced infrared-absorption measurements on the newly synthesized organic molecule 5,5'-bis-(2-phenylethylnyl)-2,2'-bithienyl (PhEtBT). We have found that the dominant elementary excitations in PhEtBT are Wannier-type neutral excitons formed between electrons and holes strongly localized in adjacent intramolecular or intermolecular C=C sites. We observed that charge carriers which do not undergo direct radiative recombination are self-localized by forming metastable charged polarons. We have observed two different charge distributions on the polaron site; one is polaronlike for T < 120 K, and the other is bipolaronlike at T> 120 K. We suggest that the charge trap centers are provided by the large polarizability of the localized pi' dimers in the C=C site. [S0163-1829(98)04203-9]. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49808]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kim, YH,Deng, TZ,Feng, BH,et al. Neutral excitons and metastable charged polarons in 5,5 '-bis-(2-phenylethylnyl)-2,2 '-bithienyl[J]. PHYSICAL REVIEW B,1998,57(15):9336. |
| APA | Kim, YH.,Deng, TZ.,Feng, BH.,Nie, YX.,Zhao, ZX.,...&Sudsuansri, K.(1998).Neutral excitons and metastable charged polarons in 5,5 '-bis-(2-phenylethylnyl)-2,2 '-bithienyl.PHYSICAL REVIEW B,57(15),9336. |
| MLA | Kim, YH,et al."Neutral excitons and metastable charged polarons in 5,5 '-bis-(2-phenylethylnyl)-2,2 '-bithienyl".PHYSICAL REVIEW B 57.15(1998):9336. |
入库方式： OAI收割
来源：物理研究所
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