Diluted exciplex concentrations in organic light emitting diodes for blue-shifted spectra and improved efficiency

doi:10.1039/d1tc05029j

CIOMP OpenIR

	Diluted exciplex concentrations in organic light emitting diodes for blue-shifted spectra and improved efficiency
	J. K. Yan; B. Z. Dong; Y. B. Xu; B. Zhao; F. M. Jin; H. Wang and W. L. Li
	2022
发表期刊	Journal of Materials Chemistry C
ISSN	2050-7526
卷号	10 期号:6 页码:2173-2180
摘要	In this work, the effects of different ratios of the donor/acceptor and spacer host materials on exciplex organic light emitting diode (OLED) based DMAC-DPS:PO-T2T were explored, and an obvious spectral blue-shift and improved efficiency were achieved. It is noted that adjusting the ratios of the donor/acceptor and inserting spacer materials can regulate the distance between exciplex molecules to suppress concentration quenching. As a result, a 30-40 nm blue-shift and a high external quantum efficiency (EQE) of similar to 10% were achieved in all OLEDs and the maximum current efficiency, power efficiency and EQE of 35.4 cd A(-1), 33.7 lm W-1 and 13.4% were obtained in 70% concentration mCP spacer. The improved exciton utilization derived from multiple reverse intersystem crossing processes and efficient energy transfer were responsible for the high efficiency.
DOI	10.1039/d1tc05029j
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66561
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. K. Yan,B. Z. Dong,Y. B. Xu,et al. Diluted exciplex concentrations in organic light emitting diodes for blue-shifted spectra and improved efficiency[J]. Journal of Materials Chemistry C,2022,10(6):2173-2180.
APA	J. K. Yan,B. Z. Dong,Y. B. Xu,B. Zhao,F. M. Jin,&H. Wang and W. L. Li.(2022).Diluted exciplex concentrations in organic light emitting diodes for blue-shifted spectra and improved efficiency.Journal of Materials Chemistry C,10(6),2173-2180.
MLA	J. K. Yan,et al."Diluted exciplex concentrations in organic light emitting diodes for blue-shifted spectra and improved efficiency".Journal of Materials Chemistry C 10.6(2022):2173-2180.

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