Highly efficient light emitters based on the spiro concept

被引：77

作者：

Spehr, T

Pudzich, R

Fuhrmann, T

Salbeck, J

机构：

[1] Univ Kassel, Dept Sci, D-34109 Kassel, Germany

[2] Univ Kassel, CINSaT, D-34109 Kassel, Germany

来源：

ORGANIC ELECTRONICS | 2003年 / 4卷 / 2-3期

关键词：

organic laser; stimulated emission; amplified spontaneous emission; spiro compounds; oligophenyl; carbazole;

D O I：

10.1016/j.orgel.2003.08.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a comparison of different molecular glasses based on the spiro-concept with respect to their photo-emission properties. The absorption and emission spectra as well as the photoluminescence quantum yields in solution are characterized. For thin, amorphous films, prepared by vacuum vapor deposition, we examined amplified spontaneous emission (ASE) by optical pumping with picosecond pulses at 337 nm. Efficient ASE emission with thresholds of down to 1 muJ/cm(2) was observed. (C) 2003 Elsevier B.V. All rights reserved.

引用

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页码：61 / 69

页数：9

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