CsPbxMn1-xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio

	CsPbxMn1-xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio
	Liu, H. W.; Z. N. Wu; J. R. Shao; D. Yao; H. Gao; Y. Liu; W. L. Yu; H. Zhang and B. Yang
	2017
发表期刊	Acs Nano
卷号	11 期号:2
摘要	CsPbX3 (X = CI, Br, I) perovskite quantum dots (QDs) are potential emitting materials for illumination and display applications, but toxic Pb is not environment and user-friendly. In this work, we demonstrate the partial replacement of Pb with Mn through phosphine-free hot injection preparation of CsPbxMn1-xCI3 QDs in colloidal solution. The Mn substitution ratio is up to 46%, and the as prepared QDs maintain the tetragonal crystalline structure of the CsPbCI3 host. Meaningfully, Mn substitution greatly enhances the photoluminescence quantum yields of CsPbCI3 from 5 to 54%. The enhanced emission is attributed to the energy transfer of photoinduced excitons from the CsPbCI3 host to the doped Mn, which facilitates exciton recombination via a radiative pathway. The intensity and position of this Mn-related emission are also tunable by altering the experimental parameters, such as reaction temperature and the Pb-to-Mn feed ratio. A light-emitting diode (LED) prototype is further fabricated by employing the as-prepared CsPbxMn1-xCI3 QDs as color conversion materials on a commercially available 365 nm GaN LED chip.
收录类别	sci ; ei
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/59068
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu, H. W.,Z. N. Wu,J. R. Shao,et al. CsPbxMn1-xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio[J]. Acs Nano,2017,11(2).
APA	Liu, H. W..,Z. N. Wu.,J. R. Shao.,D. Yao.,H. Gao.,...&H. Zhang and B. Yang.(2017).CsPbxMn1-xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio.Acs Nano,11(2).
MLA	Liu, H. W.,et al."CsPbxMn1-xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio".Acs Nano 11.2(2017).

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