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Electrically controlled photoluminescence efficiency of organic rubrene microplates

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Title
Electrically controlled photoluminescence efficiency of organic rubrene microplates
Author(s)
Park C.-J.; Min Su Kim; Jeongyong Kim; Joo J.
Subject
Rubrene, Microplate, Photoluminescence, Electric field, Charge dissociation
Publication Date
2015-01
Journal
SYNTHETIC METALS, v.199, pp.394 - 399
Publisher
ELSEVIER SCIENCE SA
Abstract
Semiconducting organic rubrene (5,6,11,12-tetraphenyltetracene) microplates (MPs) were fabricated using physical vapor transport to study tunable photoluminescence (PL) characteristics through an applied electric field. The nanoscale PL intensities of a rubrene MP, which were measured via high-resolution laser confocal microscopy (LCM), clearly depended on the applied electric field intensity. The LCM PL intensity of the rubrene MP sinusoidally varied with the periodic change of the electric field. We also observed the aging effect on the LCM PL intensity of rubrene MPs. Control of the charge dissociation rate of photoinduced excitons by the external electric field can be the cause of the tunable PL efficiency of the MP.
URI
https://pr.ibs.re.kr/handle/8788114/747
DOI
10.1016/j.synthmet.2014.12.002
ISSN
0379-6779
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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