PHOTOLUMINESCENCE SPECTRA OF GAS-EVAPORATED CDS MICROCRYSTALS

被引:132
作者
AGATA, M [1 ]
KURASE, H [1 ]
HAYASHI, S [1 ]
YAMAMOTO, K [1 ]
机构
[1] KOBE UNIV,FAC ENGN,DEPT ELECTR ENGN,KOBE 657,JAPAN
关键词
D O I
10.1016/0038-1098(90)90084-O
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The temperature dependence of photoluminescence spectra of gas-evaporated CdS microcrystals ranging from 200 to 1500Å in average size were measured. At low temperatures, new peaks which were not previously observed at room temperature were found. The low-temperature spectra consist of two green (G1 and G2), a yellow (Y) and a red (R) band. On the basis of the observed temperature dependencies of the peak positions, intensities and widths, possible origins of the four emission bands are discussed. Our results strongly suggest that the R band is due to the surface states. © 1990.
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页码:1061 / 1065
页数:5
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