气候变化领域集成服务门户(CCPortal): Efficient Two-Dimensional Tin Halide Perovskite Light-Emitting Diodes via a Spacer Cation Substitution Strategy

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DOI	10.1021/acs.jpclett.9b03565
	Efficient Two-Dimensional Tin Halide Perovskite Light-Emitting Diodes via a Spacer Cation Substitution Strategy
	Wang Z.; Wang F.; Zhao B.; Qu S.; Hayat T.; Alsaedi A.; Sui L.; Yuan K.; Zhang J.; Wei Z.; Tan Z.
发表日期	2020
ISSN	19487185
起始页码	1120
结束页码	1127
卷号	11 期号:3
英文摘要	Lead halide perovskites have attracted tremendous attention because of their impressive optoelectronic properties. However, the toxicity of lead remains a bottleneck for further commercial development. Two-dimensional Ruddlesden-Popper tin-based perovskites are lead-free and more stable compared to their three-dimensional counterparts, which have great potential in the optoelectronic device field. Herein, we demonstrate high-quality two-dimensional phenylethylammonium tin-iodide perovskite (PEA2SnI4) thin films by using toluene as the antisolvent. Furthermore, the PeLED performance is greatly improved by replacing the PEAI spacer cation with 2-thiopheneethyllamine iodide (TEAI). As a result, a TEA-based PeLED device is achieved with a low turn-on voltage of 2.3 V, a maximum luminance of 322 cd m-2, and maximum external quantum efficiency of 0.62%, which are the highest efficiency and brightness for pure red (emission peak = 638 nm) tin-based PeLEDs to date. Copyright © 2020 American Chemical Society.
scopus关键词	Efficiency; Lead compounds; Light emitting diodes; Luminance; Perovskite; Perovskite solar cells; Positive ions; Cation substitutions; Commercial development; External quantum efficiency; Halide perovskites; Low turn-on voltages; Maximum luminance; Optoelectronic properties; Ruddlesden-Popper; Tin compounds
来源期刊	Journal of Physical Chemistry Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176977
作者单位	State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China; Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau; NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia; State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China; CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
推荐引用方式 GB/T 7714	Wang Z.,Wang F.,Zhao B.,et al. Efficient Two-Dimensional Tin Halide Perovskite Light-Emitting Diodes via a Spacer Cation Substitution Strategy[J],2020,11(3).
APA	Wang Z..,Wang F..,Zhao B..,Qu S..,Hayat T..,...&Tan Z..(2020).Efficient Two-Dimensional Tin Halide Perovskite Light-Emitting Diodes via a Spacer Cation Substitution Strategy.Journal of Physical Chemistry Letters,11(3).
MLA	Wang Z.,et al."Efficient Two-Dimensional Tin Halide Perovskite Light-Emitting Diodes via a Spacer Cation Substitution Strategy".Journal of Physical Chemistry Letters 11.3(2020).