无铅银锑卤双钙钛矿量子点具有优异的蓝色光致发光性能。
Lead-free silver-antimony halide double perovskite quantum dots with superior blue photoluminescence.
机构信息
School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory for Science and Application of Molecular Ferroelectrics, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Southeast University, Nanjing, 211189, China.
出版信息
Chem Commun (Camb). 2019 Dec 5;55(98):14741-14744. doi: 10.1039/c9cc07397c.
Novel all-inorganic Sb-based lead-free double perovskite Cs2AgSbX6 (X = Cl, Br or I) quantum dots exhibiting excellent air stability and strong blue emission with photoluminescence quantum yields of 31.33% were synthesized for the first time using a surfactant-assisted method. The ligand, oleic acid, could control the crystallization of the pure perovskite phase and significantly passivate the surface.
首次采用表面活性剂辅助法合成了具有良好空气稳定性和强蓝色发光性能的新型全无机 Sb 基无铅双钙钛矿 Cs2AgSbX6（X = Cl、Br 或 I）量子点，其光致发光量子产率高达 31.33%。配体油酸可以控制纯钙钛矿相的结晶并显著钝化表面。
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