Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes

doi:10.1039/c8tc05988h

CIOMP OpenIR

	Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes
	B.Zhao; Y.S.Lau; A.A.Syed; F.M.Jin; F.R.Zhu
	2019
发表期刊	Journal of Materials Chemistry C
ISSN	2050-7526
卷号	7 期号:18 页码:5293-5298
摘要	Perovskite light-emitting diodes (PeLEDs) have received increasing attention because of their unique saturated emission color and solution fabrication capability. In this work, we report our effort towards obtaining high performance cesium lead tribromide (CsPbBr3)-based PeLEDs through controlled growth of the inorganic polycrystalline perovskite emissive layer. The effect of a small molecule additive 2-((4-biphenylyl)-5-phenyl-1,3,4-oxadiazole) (PBD) on the formation of the uniform pinhole free one-step-processed CsPbBr3-based emissive layer was analyzed. The results reveal that the use of the PBD additive in the precursor solution enables the suppression of the leakage current in the PeLEDs, which is realized through improved charge transport and controlled growth of the CsPbBr3-emissive layer. A maximum luminance of 9396 cd m(-2) was realized for the PeLEDs, prepared using an optimal PBD additive concentration in the perovskite precursor solution, which is >4 times that of the control PeLEDs fabricated using a pure CsPbBr3-precursor solution (2455 cd m(-2)).
关键词	halide perovskites,film,nanocrystals,coverage,bright,Materials Science,Physics
DOI	10.1039/c8tc05988h
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收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/62762
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	B.Zhao,Y.S.Lau,A.A.Syed,et al. Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes[J]. Journal of Materials Chemistry C,2019,7(18):5293-5298.
APA	B.Zhao,Y.S.Lau,A.A.Syed,F.M.Jin,&F.R.Zhu.(2019).Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes.Journal of Materials Chemistry C,7(18),5293-5298.
MLA	B.Zhao,et al."Effect of small molecule additives on efficient operation of all inorganic polycrystalline perovskite light-emitting diodes".Journal of Materials Chemistry C 7.18(2019):5293-5298.

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