Observation of triplet state of charge-transfer excitons in C60 thin film

被引：47

作者：

Ichida, M ^{[1
]}

Nakamura, A

Shinohara, H

Saitoh, Y

机构：

[1] Nagoya Univ, Grad Sch Engn, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Grad Sch Engn, Dept Appl Phys, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[3] Nagoya Univ, Fac Sci, Dept Chem, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[4] Mie Univ, Fac Engn, Dept Elect & Elect Engn, Tsu, Mie 5148507, Japan

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 289卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(98)00480-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have studied formation and energy structure of tripler states of charge-transfer excitons in C-60 thin film by means of pump and probe spectroscopy in a vast time domain from 100 fs to 100 ms. In solid C-60, absorption bleaching which lasts up to several hundred milliseconds is observed slightly below the absorption band due to charge-transfer excitons (CT excitons). This provides a spectroscopic evidence for existence of an inter-molecular tripler state due to CT excitons in solid C-60. The energy splitting between singlet and triplet CT exciton states is 0.09 eV, and the lifetime of triplet CT excitons is similar to 50 ms. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：579 / 585

页数：7

共 28 条

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