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CsPbX3 (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications
Langmuir ( IF 3.7 ) Pub Date : 2023-08-07 , DOI: 10.1021/acs.langmuir.3c01848
Xiao Zhang 1 , Ping Yang 2
Affiliation  

Cesium lead halide (CsPbX3, X = Cl, Br, and I) perovskite nanocrystals (NCs) possess great potential in light-emitting diode applications because of their high brightness, low cost, tunable luminescence, and facile synthesis nature. However, these NCs are often disadvantaged by their instability in nonsolvent environment that hinders the practical applications of the material. In order to solve these issues, cesium lead halide NCs prepared using a solvent environment can be placed on substrates to retain the high stability and expand the applicability of the material. This Review focuses on the transfer of the all-inorganic cesium lead halide NCs (synthesized in solutions) onto matrix materials and their direct synthesis on these bases, including the inert shell growth (inorganic and organic shell), embedment in matrixes (e.g., metal organic frameworks, porous SiO2, glass, ZrO2, Al2O3, and AlOOH), and direct synthesis in substrates. In particular, the strategies for stability and PL property improvement of the materials are also summarized. The purpose of this Review is to provide inspiration for the encapsulation of cesium lead halide NCs with high brightness and stability in matrixes to expand the applicability of these materials in wide color gamut backlighting (e.g., white-light-emitting devices).

中文翻译:

CsPbX3(X = Cl、Br 和 I)基底中的纳米晶体实现稳定的光致发光:纳米结构、特性和应用

卤化铯铅(CsPbX 3,X = Cl、Br和I)钙钛矿纳米晶体(NC)由于其高亮度、低成本、可调谐发光和易于合成的性质,在发光二极管应用中具有巨大的潜力。然而,这些NC通常在非溶剂环境中不稳定,从而阻碍了材料的实际应用。为了解决这些问题,可以将使用溶剂环境制备的铯铅卤化物NC放置在基板上,以保持高稳定性并扩大材料的适用性。本综述重点关注全无机卤化铯铅NC(在溶液中合成)到基质材料上的转移以及它们在这些基础上的直接合成,包括惰性壳生长(无机和有机壳)、嵌入基质(例如金属有机骨架、多孔SiO 2、玻璃、ZrO 2、Al 2 O 3和AlOOH),以及在基材中直接合成。特别是,还总结了材料稳定性和PL性能改善的策略。本综述的目的是为在基体中封装具有高亮度和稳定性的铯铅卤化物NC提供灵感,以扩展这些材料在宽色域背光(例如白光发光器件)中的适用性。
更新日期:2023-08-07
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