Journal
CHEMNANOMAT
Volume 5, Issue 10, Pages 1311-1316Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cnma.201900381
Keywords
luminescence; CH3NH3PbBr3; beta-cyclodextrin; core; shell structure; perovskite nanocrystals
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Funding
- Shanghai Science and Technology Innovation Action Plan [17JC1402500]
- Natural Science Foundation of Shanghai [18ZR1410900]
- China Postdoctoral Science Foundation [2017 M621540]
- ECNU Multifunctional Platform for Innovation [004, 006]
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Luminescent lead halide perovskite nanocrystals (LHP NCs) have attracted great attention. This work reports the synthesis of well-defined core/shell structured CH3NH3PbBr3/beta-cyclodextrin (MAPbBr(3)/beta-CD) nanodots via host-guest interaction between beta-cyclodextrin and hexylamine. The MAPbBr(3)/beta-CD nanodots show high luminescence with photoluminescence quantum yields (PLQYs) of 89.7% in solution and 38.0% in solid state. The MAPbBr(3)/beta-CD nanodots have superior stability in water, under heat and UV light exposure due to the formation of a beta-CD shell, which gives them great potential for optoelectrical and biological applications.
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