%AHe, Yanjie [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%ALiang, Yachao [Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials Henan Key Laboratory of Advanced Nylon Materials and Application School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 China]%ALiang, Shuang [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%AHarn, Yeu‐Wei [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%ALi, Zili [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%AZhang, Mingyue [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%AShen, Dingfeng [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%ALi, Zhiwei [Shenzhen Cloud Computing Center National Supercomputing Center Shenzhen 518055 China]%AYan, Yan [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%APang, Xinchang [Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials Henan Key Laboratory of Advanced Nylon Materials and Application School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 China]%ALin, Zhiqun [School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA]%BJournal Name: Angewandte Chemie International Edition; Journal Volume: 60; Journal Issue: 13; Related Information: CHORUS Timestamp: 2023-09-01 10:19:45 %D2021%IWiley Blackwell (John Wiley & Sons) %JJournal Name: Angewandte Chemie International Edition; Journal Volume: 60; Journal Issue: 13; Related Information: CHORUS Timestamp: 2023-09-01 10:19:45 %K %MOSTI ID: 10221818 %PMedium: X %TDual‐Protected Metal Halide Perovskite Nanosheets with an Enhanced Set of Stabilities %XAbstract

Approaches to achieve stable perovskite nanocrystals (PNCs) of interest, in particular those with large structural anisotropy, through protective coating of the inorganic shell at a single‐nanocrystal (NC) level are comparatively few and limited in scope. Reported here is a robust amphiphilic‐diblock‐copolymer‐enabled strategy for crafting highly‐stableanisotropicCsPbBr3nanosheets (NSs) by in situ formation of a uniform inorganic shell (1st shielding) that is intimately ligated with hydrophobic polymers (2nd shielding). The dual‐protected NSs display an array of remarkable stabilities (i.e., thermal, photostability, moisture, polar solvent, aliphatic amine, etc.) and find application in white‐light‐emitting diodes. In principle, by anchoring other multidentate amphiphilic polymer ligands on the surface of PNCs, followed by templated‐growth of shell materials of interest, a rich variety of dual‐shelled, multifunctional PNCs with markedly improved stabilities can be created for use in optics, optoelectronics, and sensory devices.

%0Journal Article