Charge transfer state of novel molecular complex C26H18Te2 • C60 • CS2 detected in single crystals by photoluminescence and ESR

被引:7
作者
Steinman, EA [1 ]
Kveder, VV
Konarev, DV
Qin, W
Grimmeiss, HG
机构
[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia
[2] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow District, Russia
[3] Univ Lund, Dept Solid State Phys, S-21100 Lund, Sweden
关键词
D O I
10.1016/S0009-2614(00)00104-4
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
Photoluminescence (PL), time resolved PL and optical absorption spectra near the band gap energy and in the range of IR active vibration modes of a novel molecular complex of fullerene, C26H18Te2. C-60. CS2 (BTX C-60. CS2), have been investigated. The new absorption band in the range 1100 cm(-1), and a novel broad ESR signal have been found, indicating the optically excited charge transfer transition in the complex. The shift of the PL spectrum by 0.32 Ev towards lower energies (with respect to one in the C-60 crystal), together with a long time decay of all PL lines, allows us to assume that the recombination is also accompanied by a charge transfer. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
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页码:1 / 6
页数:6
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