气候变化领域集成服务门户(CCPortal): Lead-free; stable orange-red-emitting hybrid copper based organic-inorganic compounds

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DOI	10.1039/d0dt04413j
	Lead-free; stable orange-red-emitting hybrid copper based organic-inorganic compounds
	Wang L.; Sun H.; Sun C.; Xu D.; Tao J.; Wei T.; Zhang Z.-h.; Zhang Y.; Wang Z.; Bi W.
发表日期	2021
ISSN	14779226
起始页码	2766
结束页码	2773
卷号	50 期号:8
英文摘要	Metal halide perovskites have been extensively studied recently by virtue of their extraordinary luminescence characteristics. However, they still suffer from severe stability issues, and contain a toxic metal lead. Here, single crystals of (PEA)4Cu4I4, a lead-free orange-red-emitting organic-inorganic copper-halide compound with a photoluminescence quantum yield (PLQY) of 68%, were synthesizedviaa simple solvent vapor diffusion process with commercially-available phenylethylamine (PEA) as a ligand. The crystals show superior stability to perovskites with retaining 60% of their initial photoluminescence (PL) intensity after 60 days in water, which is due to the hydrophobic nature of PEA and the stable Cu-N bonds. Phase transition is found to take place upon lowering the temperature, which causes a redshift of the PL peak. The emission band is identified to be associated with triplet cluster-centered (CC) excited states because of their shortened Cu-Cu distances, excitation-independent PL and long PL lifetime. In addition, micron-sized oleic acid capped (PEA)4Cu4I4particles were developed by a hot-injection method, and they possess similar stability to that of bulk crystals. A monochrome LED was further fabricated by employing the as-prepared micron-sized particles as phosphors, demonstrating their potential for optoelectronic applications. © The Royal Society of Chemistry 2021.
scopus关键词	Citrus fruits; Inorganic compounds; Metal halides; Monounsaturated fatty acids; organic-inorganic materials; Perovskite; Photoluminescence; Halide perovskites; Luminescence characteristics; Micron-sized particles; Optoelectronic applications; Orange-red emitting; Organic-inorganic compound; Photoluminescence intensities; Photoluminescence quantum yields; Copper compounds
来源期刊	Dalton Transactions
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177236
作者单位	State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, China; Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, China; College of Materials Science and Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, China
推荐引用方式 GB/T 7714	Wang L.,Sun H.,Sun C.,et al. Lead-free; stable orange-red-emitting hybrid copper based organic-inorganic compounds[J],2021,50(8).
APA	Wang L..,Sun H..,Sun C..,Xu D..,Tao J..,...&Bi W..(2021).Lead-free; stable orange-red-emitting hybrid copper based organic-inorganic compounds.Dalton Transactions,50(8).
MLA	Wang L.,et al."Lead-free; stable orange-red-emitting hybrid copper based organic-inorganic compounds".Dalton Transactions 50.8(2021).