Reconstructing the Surface Structure of NaREF4Upconversion Nanocrystals with a Novel K+Treatment

doi:10.1021/acs.chemmater.0c04956

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	Reconstructing the Surface Structure of NaREF4Upconversion Nanocrystals with a Novel K+Treatment
	D. Liu; X. Xu; Y. Du; J. Liao; S. Wen; X. Dong; Y. Jin; L. Liu; D. Jin; J. A. Capobianco and D. Shen
刊名	Chemistry of Materials
	2021
卷号	33 期号:7 页码:2548-2556
ISSN号	8974756
DOI	10.1021/acs.chemmater.0c04956
英文摘要	Property of the nanocrystals' surface structure plays a key role in developing novel nanomaterials with high performance and new functionalities. Conventional methods of nanocrystal surface engineering are commonly based on tuning the synthesis reaction parameters or growing core-shell structures, which usually results in increasing the size of the nanoparticles. Here, we report an approach to tailoring the surface crystalline structure of -NaYF4 nanocrystals by reheating the nanocrystals in a K+-rich environment of the oleic acid-1-octadecene (OA-ODE) system. We found that the crystal surface stability of nanocrystals was decreased in the K+-rich solution, which reconstructs the nanocrystals' surface into a porous surface structure. With a systematic design of experiments, the roles of the cations, such as K+, K+-Gd3+, and Na+-Y3+, are individually identified, which leads to a reformation of the surface structure of the hexagonal NaYF4 nanocrystal into different forms, e.g., a mesostructured, spherical, and diamond surface. The technique of tailoring the surface crystalline structures will provide new insight for the shape and surface-dependent property studies and luminescence enhancement without a size increase. 2021 American Chemical Society.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/65580]
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	D. Liu,X. Xu,Y. Du,et al. Reconstructing the Surface Structure of NaREF4Upconversion Nanocrystals with a Novel K+Treatment[J]. Chemistry of Materials,2021,33(7):2548-2556.
APA	D. Liu.,X. Xu.,Y. Du.,J. Liao.,S. Wen.,...&J. A. Capobianco and D. Shen.(2021).Reconstructing the Surface Structure of NaREF4Upconversion Nanocrystals with a Novel K+Treatment.Chemistry of Materials,33(7),2548-2556.
MLA	D. Liu,et al."Reconstructing the Surface Structure of NaREF4Upconversion Nanocrystals with a Novel K+Treatment".Chemistry of Materials 33.7(2021):2548-2556.