Phosphorescent light-emitting transistors: Harvesting triplet excitons

Namdas, Ebinazar B., Hsu, Ben B. Y., Liu, Zehua, Lo, Shih-Chun, Burn, Paul L. and Samuel, Ifor D. W. (2009) Phosphorescent light-emitting transistors: Harvesting triplet excitons. Advanced Materials, 21 48: 4957-4961. doi:10.1002/adma.200900919


Author Namdas, Ebinazar B.
Hsu, Ben B. Y.
Liu, Zehua
Lo, Shih-Chun
Burn, Paul L.
Samuel, Ifor D. W.
Title Phosphorescent light-emitting transistors: Harvesting triplet excitons
Journal name Advanced Materials   Check publisher's open access policy
ISSN 0935-9648
1521-4095
Publication date 2009-12-01
Year available 2009
Sub-type Article (original research)
DOI 10.1002/adma.200900919
Open Access Status DOI
Volume 21
Issue 48
Start page 4957
End page 4961
Total pages 5
Editor Peter Gregory
Lisa Wylie
Place of publication Germany
Publisher Wiley VCH Verlag GmbH & Co. KGaA
Language eng
Subject C1
970102 Expanding Knowledge in the Physical Sciences
970103 Expanding Knowledge in the Chemical Sciences
020404 Electronic and Magnetic Properties of Condensed Matter; Superconductivity
020499 Condensed Matter Physics not elsewhere classified
020504 Photonics, Optoelectronics and Optical Communications
091208 Organic Semiconductors
Abstract Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials (see figure), are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45% at 480 cd m(-2), a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m(-2) with a relatively high hole mobility of 2.5 x 10(-2) cm(2) V-1 s(-1).
Formatted abstract
Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials (see figure), are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45% at 480 cd m-2, a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m-2 with a relatively high hole mobility of 2.5 × 10-2 cm2 V-1 s-1.
Keyword Organic electronics
Organic field-effect transistors
Light-emitting diodes
Photoluminescence
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID NSF-DMR-0602280
FF0668728
Institutional Status UQ

 
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Created: Sun, 24 Jan 2010, 10:06:00 EST