Luminescence from C60 single crystals in glassy phase under site-selective excitation

被引：23

作者：

Akimoto, I ^{[1
]}

Ashida, M ^{[1
]}

Kan'no, K ^{[1
]}

机构：

[1] Kyoto Univ, Dept Phys, Kyoto 606, Japan

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 292卷 / 4-6期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/S0009-2614(98)00737-4

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：

Luminescence from C-60 single crystals has been investigated at liquid He temperature under selective excitation into the tail part below the fundamental absorption edge. Luminescence line narrowing is observed for resonant excitation, in which a characteristic vibrational quantum is found similar to 420 cm(-1) in the excited state. It is revealed that the spectrum which has been known as photo-luminescence from C-60 single crystals is an superposition of site-selective luminescence from several localized states. Such inhomogeneity is most likely to arise from fluctuation of the intermolecular orientational correlation in a pair of C-60 molecules over which the excitation is delocalized. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：561 / 566

页数：6

共 9 条

[1] Relaxation dynamics into two types of luminescence states in C60 single crystals below 80 K [J].