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Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

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Rhodium-oxide-coated indium tin oxide for enhancement of hole injection in organic light emitting diodes

Cited 28 times inthomson ciCited 12 times inthomson ci
Title
Rhodium-oxide-coated indium tin oxide for enhancement of hole injection in organic light emitting diodes
Author
Kim, SYBaik, Jeong MinYu, HKKim, KYTak, YHLee, JL
Keywords
Energy barrier; Hole injection; Operation voltage; Work function
Issue Date
2005-08
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.87, no.7, pp.1 - 3
Abstract
The authors report the enhancement of hole injection using an RhOx layer between indium tin oxide anodes and 4, 4′ -bis[N-(1-naphtyl)- N -phenyl-amino]biphenyl in organic light-emitting diodes (OLEDs). The operation voltage of OLEDs at 700 cdm2 decreased from 13 to 10 V as the Rh layer changed to RhOx by surface treatment using O2 plasma. Synchrotron radiation photoelectron spectroscopy results showed that the work function increased by 0.2 eV as the Rh layer transformed into RhOx. Thus, the hole injection energy barrier was lowered, reducing the turn-on voltage and increasing the quantum efficiency of OLEDs.
URI
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DOI
10.1063/1.2012534
ISSN
0003-6951
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MSE_Journal Papers
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