Time evolution of the emission band of Alq3 films in open atmosphere

被引:4
作者
Baldacchini, Giuseppe [1 ]
Baldacchini, Tommaso
Chiacchiaretta, Piero
Pace, Angelo
Pode, Ramchandra Balaji
机构
[1] ENEA, Ctr Ric Frascati, UTS Tecnol Fis Avanzate, I-00044 Frascati, Italy
[2] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
[3] Nagpur Univ, Dept Phys, Nagpur 440010, Maharashtra, India
关键词
Alq(3); photoluminescence; decay processes; band shape; morphological species;
D O I
10.1016/j.jlumin.2006.01.116
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The degradation of Alq(3) films in open atmosphere has been studied by means of photoluminescence measurements. The emission decay shows that there are four different time evolutions corresponding to various physical components or species. Moreover, the components are also characterized by well-defined emission bands, whose spectral parameters have been determined. This discovery allows the optical properties of the films to be properly understood, among which the intensity decay and the blue shift of the emission band during the degradation process itself. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:234 / 236
页数:3
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