DECAY KINETICS OF THE 4.4 EV PHOTOLUMINESCENCE ASSOCIATED WITH THE 2 STATES OF OXYGEN-DEFICIENT-TYPE DEFECT IN AMORPHOUS SIO2

被引：149

作者：

NISHIKAWA, H ^{[1
]}

WATANABE, E ^{[1
]}

ITO, D ^{[1
]}

OHKI, Y ^{[1
]}

机构：

[1] WASEDA UNIV, DEPT ELECT ENGN, SHINJUKU KU, TOKYO 169, JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.72.2101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first observation of 4.4 eV photoluminescence (PL) decay in an oxygen-deficient-type silica excited with ultraviolet and vacuum ultraviolet photons from synchrotron radiation. The lifetime of the 4.4 eV PL is 4.2, 4.3, and 2.1 ns for the 5.0, 6.9, and 7.6 eV excitations, respectively, indicating the presence of multiple decay channels. This can be explained by an energy diagram involving the interconversion between two states of the oxygen-deficient-type defect.

引用

页码：2101 / 2104

页数：4

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