Improved Doping and Emission Efficiencies of Mn-Doped CsPbCl3 Perovskite Nanocrystals via Nickel Chloride

doi:10.1021/acs.jpclett.9b01588

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	Improved Doping and Emission Efficiencies of Mn-Doped CsPbCl3 Perovskite Nanocrystals via Nickel Chloride
	K.Xing; X.Yuan; Y.Wang; J.Li; Y.J.Wang; Y.Fan; L.Yuan
	2019
发表期刊	Journal of Physical Chemistry Letters
ISSN	1948-7185
卷号	10 期号:15 页码:4177-4184
摘要	It is challenging to improve the emission efficiency of Mn-doped CsPbCl3 (Mn:CsPbCl3) nanocrystals (NCs) because the excellent optical performances are dependent on high doping efficiency and few defects and traps. Steady-state and time-resolved photoluminescence (PL) spectroscopies were used to investigate the luminescence properties of Mn:CsPbCl3 NCs with different Mn doping levels synthesized in the presence of nickel chloride. The doping efficiency of Mn ions in Mn:CsPbCl3 NCs was greatly enhanced in the presence of NiCl2, and the PL wavelength of Mn2+ ions was tuned from 594 to 638 nm by varying the concentration of dopant Mn from 0.11% to 15.25%. The high emission quantum yields of Mn:CsPbCl3 NCs with orange and red emissions peaked at 600 and 620 nm in hexane were 70% and 39%, respectively. The improvement in doping and emission efficiencies of Mn2+ was attributed to the enhanced formation energies of the Mn doping under the Mn and Ni codoped configuration and the resulting reduction of defects and traps in Mn:CsPbCl3 NCs with incorporation of Ni2+ ions.
关键词	lead halide perovskites,energy-transfer,dopant emission,quantum dots,luminescence,substitution,dynamics,Chemistry,Science & Technology - Other Topics,Materials Science,Physics
DOI	10.1021/acs.jpclett.9b01588
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/181722/62923
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	K.Xing,X.Yuan,Y.Wang,et al. Improved Doping and Emission Efficiencies of Mn-Doped CsPbCl3 Perovskite Nanocrystals via Nickel Chloride[J]. Journal of Physical Chemistry Letters,2019,10(15):4177-4184.
APA	K.Xing.,X.Yuan.,Y.Wang.,J.Li.,Y.J.Wang.,...&L.Yuan.(2019).Improved Doping and Emission Efficiencies of Mn-Doped CsPbCl3 Perovskite Nanocrystals via Nickel Chloride.Journal of Physical Chemistry Letters,10(15),4177-4184.
MLA	K.Xing,et al."Improved Doping and Emission Efficiencies of Mn-Doped CsPbCl3 Perovskite Nanocrystals via Nickel Chloride".Journal of Physical Chemistry Letters 10.15(2019):4177-4184.

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