Random lasing from surface modified films of zinc oxide nanoparticles

被引：31
作者：
Stassinopoulos, A
Das, RN
Giannelis, EP
Anastasiadis, SH
Anglos, D
机构：
[1] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece
[2] Univ Crete, Dept Phys, Iraklion 71103, Crete, Greece
[3] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA
来源：
APPLIED SURFACE SCIENCE | 2005年 / 247卷 / 1-4期
关键词：
random laser; surface processing; zinc oxide;
D O I：
10.1016/j.apsusc.2005.01.055
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：
The photoluminescence properties of zinc oxide (ZnO) ceramic thin films, prepared by spin coating of ZnO nanoparticle aqueous suspensions, were studied with emphasis on the influence of film structure and surface morphology on the observation of random laser action. Surface processing employing laser annealing transforms the particulate grain structure of the as-deposited films into a porous channel-like network. This modification was shown to be critical for achieving random laser action as it favors efficient coupling of the pump light into the film material. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：18 / 24
页数：7
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