Optical properties of endohedral Li@C60

被引：51

作者：

Gromov, A

Krawez, N

Lassesson, A

Ostrovskii, DI

Campbell, EEB ^{[1
]}

机构：

[1] Univ Gothenburg, Sch Phys & Engn Phys, Dept Expt Phys, SE-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, SE-41296 Gothenburg, Sweden

[3] Max Born Inst, DE-12489 Berlin, Germany

来源：

CURRENT APPLIED PHYSICS | 2002年 / 2卷 / 01期

关键词：

endohedral fullerenes; Raman spectroscope; UV-VIS spectroscopy; IR spectroscopy;

D O I：

10.1016/S1567-1739(01)00101-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

UV-VIS, IR and Raman investigations have been carried out on purified LiCa Cho produced by low energy ion implantation of C-60. Two endohedral fractions can be isolated that have very different optical properties and stabilities. Here we show that the first endohedral fraction is a dimer species and the second fraction is the monomer. The IR spectra of sublimed monomer films show a prominent peak at around 1.1 mum corresponding to the first electronic transition of the C60 anion. Raman spectra show the vibrational-rotational movement of the Li inside the carbon cage. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：51 / 55

页数：5

共 18 条

[1] Optical evidence of metal-insulator phase transition in A1C60 [J].