High thermally stable deep red-emitting Sb3+,Ho3+-codoped Cs2NaScCl6 double perovskite for plant lighting

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外文摘要：Lead-free halide double perovskite has received widespread attention due to its excellent optical per-formance.However,the lack of deep red light and poor heat quenching resistance severely limit its application in plant lighting field.In this work,Ho3+was introduced into the thermally stable Cs2NaScCl6 host,exhibiting a deep red emission of 660 nm.By constructing an energy transfer channel between Sb3+and Ho3+,the photoluminescence quantum yield(PLQY)of Cs2NaScCl6∶1％Sb3+,40％Ho3+rises up to 53.8％,that is increased by 17 times,and its emission intensity can still be maintained by 80％at 423 K,exhibiting good heat quenching resistance.The obtained Cs2NaScCl6∶1％Sb3+,40％Ho3+and Cs2NaScCl6∶1％Sb3+with blue light emission were employed for fabricating a light-emitting diode(LED)device with a 340 nm UV chip,and its emission spectrum matches well the absorption spectra of chlorophyll A and chlorophyll B with the high resemblance of 70％and 75％,making it suitable for use as an artificial light source to control the growth process of plants in the field of plant lighting.

外文关键词：

Lead-free halide double perovskiteEnergy transferThermally stablePlant lightingRare earths

作者：

Houjiang You、Gaoxuanyu Guan、Tianchun Lang、Mingsheng Cai、Peng Su、Huichao He、Yang Zhong、Tao Han

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作者单位：

School of Metallurgy and Materials Engineering,Chongqing University of Science and Technology,Chongqing,401331,China

School of Material Science and Engineering,Chongqing University of Technology,Chongqing,400054,China

Chongqing Key Laboratory of Materials Surface & Interface Science,Chongqing University of Arts and Sciences,Chongqing,402160,China

Offshore Oil Engineering Co.,Ltd.,Tianjin,300461,China

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基金：

National Natural Science Foundation of ChinaScience and Technology Research Program of Chongqing Municipal Education CommissionScience and Technology Research Program of Chongqing Municipal Education CommissionChongqing Talent PlanFund for Creative Research Group of Micro-Nano Semiconductor & Photonic Materials of Chongqing Municipal Education Commission

项目编号：

12174042KJQN202201338KJZD-M201901301CQYC202003058

出版年：

2024

DOI：

10.1016/j.jre.2023.10.012

稀土学报(英文版)

中国稀土学会

稀土学报(英文版)

CSTPCDEI

影响因子：1.3

ISSN：1002-0721

年,卷(期)：2024.42(11)