Zhang Xiao, Yang Ping
Faculty of Chemical Engineering and Technology, Cracow University of Technology, Krakow 31-155, Poland.
School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China.
Langmuir. 2023 Aug 15;39(32):11188-11212. doi: 10.1021/acs.langmuir.3c01848. Epub 2023 Aug 7.
Cesium lead halide (CsPbX, 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 SiO, glass, ZrO, AlO, 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).
卤化铯铅（CsPbX，X = Cl、Br和I）钙钛矿纳米晶体（NCs）因其高亮度、低成本、发光可调谐以及合成简便等特性，在发光二极管应用中具有巨大潜力。然而，这些纳米晶体在非溶剂环境中往往不稳定，这阻碍了该材料的实际应用。为了解决这些问题，可以将在溶剂环境中制备的卤化铯铅纳米晶体放置在基板上，以保持其高稳定性并扩大该材料的适用性。本综述重点关注全无机卤化铯铅纳米晶体（在溶液中合成）向基体材料的转移及其在这些基体上的直接合成，包括惰性壳层生长（无机和有机壳层）、嵌入基体（如金属有机框架、多孔SiO、玻璃、ZrO、AlO和AlOOH）以及在基板上直接合成。特别地，还总结了提高材料稳定性和发光特性的策略。本综述的目的是为在基体中封装具有高亮度和稳定性的卤化铯铅纳米晶体提供灵感，以扩大这些材料在广色域背光（如白光发光器件）中的适用性。
