Mn掺杂CsPbCl3/Cs4PbCl6复合材料的制备及发光机理

doi:10.3969/j.issn.1000-1565.2022.06.008

摘要/Abstract

摘要： 为开发适合产业化的零维钙钛矿的合成方法,利用超声法制备了Mn²⁺掺杂的CsPbCl₃/Cs₄PbCl₆复合物(CCM),并讨论了CCM的发光机理.在近紫外激发下,CCM具有明亮的红色发光,发射谱具有3个发射峰,分别位于606 nm(Mn²⁺)、414 nm(CsPbCl₃)和351 nm(Cs₄PbCl₆).CCM中存在CsPbCl₃、Cs₄PbCl₆对Mn²⁺的能量传递过程.通过改变前驱物中MnCl₂/PbCl₂投料比可以调节CCM中Cs₄PbCl₆对CsPbCl₃的钝化,调控CCM中CsPbCl₃对Mn²⁺的能量传递以及Mn²⁺的红光发射强度.

关键词: Cs₄PbCl₆, Mn掺杂, 钙钛矿

Abstract: In order to develope synthesis methods suitable for industrial production. In this work, Mn-doped CsPbCl₃/Cs₄PbCl₆(CCM)composites were synthesized by ultrasonic method and their luminescence mechanism were investigated. CCM has a bright red emission under near-ultraviolet excitation, and there were three emission peaks located at 606 nm(Mn²⁺), 414 nm(CsPbCl₃), and 351 nm(Cs₄PbCl₆). Energy transfer from CsPbCl₃ to Mn²⁺ and from Cs₄PbCl₆ to Mn²⁺ were presented in CCM. By varying the MnCl₂/PbCl₂ ratio in the precursor, the passivation of Cs₄PbCl₆ on CsPbCl₃, the energy transfer from CsPbCl₃ to Mn²⁺ and the red-light emission intensity of Mn²⁺ were modulated.

Key words: Cs₄PbCl₆, Mn-doped, perovskite

中图分类号:

O482.31

杨祥策,张恒,刘晨晖,朱梦轩,王凤和,郭颖楠. Mn掺杂CsPbCl₃/Cs₄PbCl₆复合材料的制备及发光机理[J]. 河北大学学报(自然科学版), 2022, 42(6): 611-617.

YANG Xiangce, ZHANG Heng, LIU Chenhui, ZHU Mengxuan, WANG Fenghe, GUO Yingnan. Synthesis and luminescence mechanism of Mn-doped CsPbCl₃/Cs₄PbCl₆ composites[J]. Journal of Hebei University(Natural Science Edition), 2022, 42(6): 611-617.

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Mn掺杂CsPbCl₃/Cs₄PbCl₆复合材料的制备及发光机理

Synthesis and luminescence mechanism of Mn-doped CsPbCl₃/Cs₄PbCl₆ composites

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