Mesoporous silica photoluminescence properties in samples with different pore size

被引：13
|
作者：
Anedda, A
Carbonaro, CM
Clemente, F
Corpino, R
Ricci, PC
机构：
[1] Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, CA, Italy
[2] INFM, UdR Cagliari, I-09042 Monserrato, CA, Italy
来源：
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2003年 / 23卷 / 6-8期
关键词：
porous silica; hydroxyl; silanol; optical properties; sol-gel; surface reactivity;
D O I：
10.1016/j.msec.2003.09.077
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultraviolet excited photoluminescence of porous silica under vacuum conditions is investigated in samples with different pore diameters. By exciting in the 180-300 nm range, a manifold luminescence activity in the 300-600 nm is found. The reconstructed three-dimensional photoluminescence excitation pattern shows how the distribution of the emissions changes by varying the pore size of the samples. Two different centers are singled out and their relative concentration is suggested to be a function of the pore size of the samples. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：1073 / 1076
页数：4
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