Rayleigh scattering and luminescence blue shift in tris(8-hydroxyquinoline)aluminum films

被引：23
作者：
Auzel, F
Baldacchini, G
Baldacchini, T
Chlacchiaretta, P
Pode, RB
机构：
[1] ENEA, Ctr Ric Frascati, UTS Tecnol Fis Avanzate, I-00044 Frascati, Rome, Italy
[2] FAConseil, F-78320 St Denis, France
[3] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
[4] Nagpur Univ, Dept Phys, Nagpur 440010, Maharashtra, India
来源：
JOURNAL OF LUMINESCENCE | 2006年 / 119卷
关键词：
Rayleigh scattering; blue shift; Alq(3); films; photoluminescence;
D O I：
10.1016/j.jlumin.2005.12.018
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The Rayleigh scattering (RS) by independent small particles is a well-known effect which also accounts for the blue color of the sky. Lately, the blue shift of the greenish emission band of thin films of Alq(3), tris(8-hydroxyquinoline)aluminum, after thermal treatments of various nature has been attributed to RS. Here, we show that RS effects cannot account for the observed spectral features, which are attributed to the onset of various molecular aggregations in the otherwise amorphous films, a morphological model already utilized to explain the optical properties of Alq(3). (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：111 / 115
页数：5
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