CU MICROCRYSTALS IN SOL-GEL DERIVED GLASSES

被引：32

作者：

NOGAMI, M ^{[1
]}

ABE, Y ^{[1
]}

NAKAMURA, A ^{[1
]}

机构：

[1] NAGOYA UNIV,CHIKUSA KU,NAGOYA,AICHI 464,JAPAN

来源：

JOURNAL OF MATERIALS RESEARCH | 1995年 / 10卷 / 10期

关键词：

D O I：

10.1557/JMR.1995.2648

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cu2+-containing SiO2 and Al(2)O3 . 9SiO(2) glasses were prepared by the sol-gel method and heated under reducing conditions to precipitate small-sized Cu and Cu2O crystals. Cu2+ ions incorporated in SiO2 glass were reduced by heating in N-2 to precipitate Cu2(O) and in H-2 to precipitate Cu microcrystals with diameters of about 5 to 15 nm. Microcrystalline Cu-precipitated glass showed an optical absorption band at 560 nm and its third-order nonlinear susceptibility was 1.25 X 10(-10) esu, which originated from the enhancement by the surface plasmon resonance of Cu particles. In contrast, Cu2+ ions incorporated in Al2O3 . 9SiO(2) glass remained unchanged after heating in the reducing gas atmospheres.

引用

页码：2648 / 2652

页数：5

共 18 条

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[2]

BAUCKE FGK, 1991, PHYS CHEM GLASSES, V32, P211

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