Electroluminescence of polymer doped small-molecules light-emitting diodes and the effects of doping trap
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Published:2007
Issue:1
Volume:56
Page:263
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ISSN:1000-3290
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Container-title:Acta Physica Sinica
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language:
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Short-container-title:Acta Phys. Sin.
Author:
Nie Hai ,Zhang Bo ,Tang Xian-Zhong ,
Abstract
Polymer doped small-molecule light-emitting diodes have been fabricated using a novel PTPD (poly-TPD) as the hole transport material and the highly fluorescent rubrene as the dopant. Electroluminescent characteristics are studied at different doped concentrations and different film thicknesses. The results indicate the presence of doping trap effect. It is assumed that the traps are limited at discrete levels. Based upon the double-carrier injection theory, an analytical model of J-V characteristics of doped device is deduced by solving the Poisson equation. Calculated data of this model are consistent with our experimental results.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
1 articles.
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