期刊
ORGANIC ELECTRONICS
卷 15, 期 2, 页码 517-523出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2013.11.040
关键词
Solution-processed; Organic light-emitting diodes; Colour-rendering index; Daylight locus
资金
- National Science Council of Taiwan [NSC 101-2112-M-007-017-MY3, NSC 102-2221-E-007-125-MY3, NSC 102-2119-M-007-006]
- Low Carbon Energy Research Centre at the National Tsing-Hua University
The chromaticity and colour-rendering capability of solution-processed single emission layer (EML) white organic light-emitting diodes (W-OLEDs) can be precisely tuned by manipulating the dopant compositions in the EMLs. In this work, we numerically modelled binary, ternary, and quaternary doping single EML W-OLEDs. The correlated colour temperature (CCT), colour-rendering index (CRI), and spectral designs were correlated. The simulation predicted that the quaternary doping system possesses the best chromaticity performance. The corresponding binary, ternary and quaternary doping single EML W-OLEDs were fabricated and characterised to verify the calculation. The solution-processed quaternary doping W-OLEDs were designed with CRI values up to 85, deviations from the Planckian locus (D-u'v') as low as +0.0009, an EQE of 13.7%, a power efficacy of 14.7 lm/W and current efficiency of up to 24.9 cd/A at 1000 cd/m(2). (C) 2013 Elsevier B.V. All rights reserved.
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