Influence of the naphthalene derivative on the luminescence properties of CdS particles prepared by the sol-gel method

被引：6
|
作者：
Fujii, T [1 ]
Tanaka, N
Tai, H
Obara, S
Ellis, AB
机构：
[1] Shinshu Univ, Fac Engn, Dept Environm Sci & Technol, Wakasato, Nagano 3808553, Japan
[2] Shinshu Univ, Fac Engn, Dept Chem & Mat Engn, Wakasato, Nagano 3808553, Japan
[3] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA
来源：
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2000年 / 73卷 / 04期
关键词：
D O I：
10.1246/bcsj.73.809
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Adsorption from an ethanol solution of naphthalene (N) derivatives onto the surface of CdS particles encapsulated into silica glasses prepared by the sol-gel method quenches or enhances the yellow-green and red photoluminescence (PL) intensity of the semiconductor particle relative to its value in pure ethanol solvent. The enhancement is in the order 1,4-dimethyl-N > 1-chloro-N greater than or equal to N greater than or equal to 1-fluoro-N greater than or equal to 1-methyl-N greater than or equal to 1-bromo-N and quenching is in the order 1-nitro-N > 2-carboxy-N. This order is understandable based on the electron-donating or electron-accepting abilities of the individual naphthalene derivatives. The changes in the PL intensity depend on the concentration and give good fits to the Langmuir adsorption isotherm model, yielding equilibrium constants for adduct formation on the order of ca. 10(3) M-1.
引用
收藏
页码：809 / 813
页数：5
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