Singular photoluminescence behavior of Alq3 films at very long decay time

被引：3

作者：

Baldacchini, G. ^{[1
]}

Chiacchiaretta, P. ^{[2
]}

Montereali, R. M. ^{[3
]}

Pode, R. B. ^{[4
]}

Vincenti, M. A. ^{[3
]}

机构：

[1] Via Guglielmo Quattrucci 246, I-00046 Rome, Italy

[2] Univ G dAnnunzio, Dept Neurosci & Imaging, I-66013 Chieti, Italy

[3] ENEA, CR Frascati, Fus & Techol Nucl Safety & Secur Dept, I-00044 Rome, Italy

[4] Kyung Hee Univ, Dept Phys, Seoul 02447, South Korea

来源：

JOURNAL OF LUMINESCENCE | 2018年 / 193卷

关键词：

Alq(3); Photoluminescence; Long decay processes; Multi-exponential decay; Molecular aggregations; OLEDs; LIGHT-EMITTING-DIODES; OPTICAL-PROPERTIES; MOLECULAR PACKING; ALUMINUM; STABILITY; SPECTROSCOPY; TEMPERATURE; PERFORMANCE; AL;

D O I：

10.1016/j.jlumin.2017.07.010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical photoluminescence of thermally evaporated Alq(3) thin films has been studied for over six years in a few samples annealed and non-annealed and afterwards exposed to the laboratory atmosphere. It was found that the measured emission intensity decays with four different time-spectral behaviors, which imply the existence of four molecular aggregations, or components. Insights have unveiled their interactions with environment agents, which are useful both for optoelectronic utilizations of this ubiquitous organo-metallic molecule possessing a long emission lifetime and for basic research and application of similar organic molecules.

引用

页码：106 / 113

页数：8

共 40 条

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