PHOTOLUMINESCENCE SPECTRA OF CARBON CLUSTERS EMBEDDED IN SIO2

被引：87

作者：

HAYASHI, S

KATAOKA, M

YAMAMOTO, K

机构：

[1] Department of Electrical and Electronics Engineering, Kobe University, Kobe, 657, Rokkodai, Nada

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1993年 / 32卷 / 2B期

关键词：

CARBON CLUSTERS; PHOTOLUMINESCENCE; SIO2; HOMO-LUMO GAP;

D O I：

10.1143/JJAP.32.L274

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Composite films of carbon and SiO2 were prepared by a rf cosputtering technique and their photoluminescence and absorption spectra were measured. A strong and broad photoluminescence peak located around 2.2 eV (visible to the naked eye) was observed for the samples with relatively low carbon concentrations. The blue shift of the photoluminescence peak observed with decreasing carbon concentration and the increased absorption in the UV region strongly suggest that carbon clusters comparable to or smaller than C60 formed in the SiO2 matrices are responsible for the strong photoluminescence.

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页码：L274 / L276

页数：3

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