Optical emission from confined poly(thiophene) chains

被引：31

作者：

Inganas, O ^{[1
]}

Granlund, T

Theander, M

Berggren, M

Andersson, MR

Ruseckas, A

Sundstrom, V

机构：

[1] Linkoping Univ, IFM, Dept Phys, Appl Phys Lab, S-58183 Linkoping, Sweden

[2] Chalmers Univ Technol, S-41296 Gothenburg, Sweden

[3] Univ Lund, Dept Chem Phys, S-22100 Lund, Sweden

来源：

OPTICAL MATERIALS | 1998年 / 9卷 / 1-4期

关键词：

D O I：

10.1016/S0925-3467(97)00062-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss the stages of the luminescence processes in substituted and soluble poly(thiophenes), using results from determinations of absolute quantum yields of photoluminescence, fast pump-probe experiments and microcavity devices. Enhancement of the quantum yield of photoluminescence, with poly(thiophenes) in the solid state, call be obtained by dispersing the conjugated chain in a molecularly dispersed polymer blend, or by adding side chains designed for forcing the conjugated main chains apart. At the wavelength of stimulated emission, we observe a narrow bandwidth emission in the high-Q one-dimensional microcavity devices prepared by sandwiching two dielectric mirrors around a thin polymer film, A strong enhancement of the power efficiency is observed at a pump power of 1 mu W/cm(2), but does not conclusively show lasing characteristics. (C) 1998 Elsevier Science B.V.

引用

页码：104 / 108

页数：5

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