Light absorption of silica nanoparticles

被引：50

作者：

Altman, IS

Lee, D

Chung, JD

Song, J

Choi, M ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Inst Adv Machinery & Design, Natl CRI Ctr Nano Particle Control, Seoul 151742, South Korea

[2] Odessa Natl Univ, Dept Phys, UA-65026 Odessa, Ukraine

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.63.161402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The light absorption of silica nanoparticles generated in a flame has been measured in visible Light. It was revealed that the frequency dependence of the light absorption coefficient is nonexponential. Its absolute value in the forbidden band was found to be unusually high. This behavior of light absorption is ascribed to a narrowing of the energy gap due to a high concentration of structural defects that appear during particle generation and growth at high temperatures.

引用

页数：4

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