Natural Science Foundation of ShanghaiNatural Science Foundation of Shanghai [18ZR1410900]; Shanghai Science and Technology Innovation Action Plan [19JC141670]; ECNU Multifunctional Platform for Innovation [004, 006]
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摘要:
Luminescent (trimethylbromomethyl) ammonium lead tribromide ((TMBM)PbBr3) nanocrystals are synthesized by a green single-step mechano-grinding method in large scale. The photoluminescence quantum yield (PL QY) of the obtained (TMBM)PbBr3 nanocrystals is 2.61 %. The luminescence of the nanocrystals can be significantly enhanced by introducing water or methanol during the grinding process. The maximum PL QYs of 7.65 % and 4.69 % are obtained for the nanocrystals prepared by the addition of water and methanol, respectively. The emission light of (TMBM)PbBr3 nanocry...