The reduction of Cu2+ to Cu+ and optical properties of Cu+ ions in Cu-doped and Cu/Al-codoped high silica glasses sintered in an air atmosphere

被引：71

作者：

Zhang, Qiang ^{[1
,2
]}

Chen, Guorong ^{[3
]}

Dong, Guoping ^{[1
,2
]}

Zhang, Guang ^{[1
,2
]}

Liu, Xiaofeng ^{[1
,2
]}

Qiu, Jianrong ^{[4
]}

Zhou, Qinling ^{[1
]}

Chen, Qingxi ^{[1
]}

Chen, Danping ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat Sci & Technol High Power Lasers, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

[4] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 482卷 / 4-6期

关键词：

ABSORPTION SPECTRA; NANOPOROUS GLASS; CUPRIC ION; COPPER; SPECTROSCOPY; DECOMPOSITION; LUMINESCENCE; CATALYSTS; ZEOLITES; EMISSION;

D O I：

10.1016/j.cplett.2009.09.105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cu-doped and Cu/Al-codoped high silica glasses (HSGes) are prepared by doping Cu2+ ions or codoping Cu2+ ions and Al3+ ions in porous glasses and then sintering at 1200 degrees C in air and the reduction of Cu2+ ions is observed in Cu/Al-codoped HSGes. With increasing the Al/Cu molar ratio, the color of the samples changes from brown to colorless gradually. Strong and broad glaucous emission from the monomer and dimmer Cu+ ions are observed when exciting the colorless samples with ultraviolet light. Absorption, photoluminescence, electron spin resonance (ESR) spectra and X-ray photoelectron spectroscopy (XPS) are carried out to investigate this phenomenon. The mechanism of this change is presented. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：228 / 233

页数：6