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 | 1998-04-15 |
| 卷号 | 57期号:15页码:9336-9342 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Kim, yh() |
| 英文摘要 | 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]. |
| WOS关键词 | CONDUCTING POLYMERS ; INFRARED ACTIVITY ; POLY(PHENYLENE VINYLENE) ; CONJUGATED POLYMERS ; POLYACETYLENE ; MODEL ; STATE ; PHOTOGENERATION ; PHOTOEXCITATION ; OLIGOTHIOPHENES |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000073219900085 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373819 |
| 专题 | 物理研究所 |
| 通讯作者 | Kim, YH |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China 2.Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA |
| 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):9336-9342. |
| 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),9336-9342. |
| 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):9336-9342. |
入库方式： iSwitch采集
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。