Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 126, Issue 12, Pages 5743-5750Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.2c00163
Keywords
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Funding
- National Natural Science Foundation of China [61205113, 62074018, 62174015]
- Natural Science Fund of Heilongjiang Province [LH2019F013]
- 111 project of Ministry Education of China [B13015]
- Fundamental Research Funds for the Central Universities [3072021CF2511]
- Developing Project of Science and Technology of Jilin Province [20200301052RQ]
- Natural Science Foundation of Jilin Province [20210101150JC]
- Natural Science Foundation of Guangdong Province [2020A1515010868]
- Shenzhen Fundamental Research Fund [JCYJ20180307151538972]
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The MAPbBr3 perovskite and MAPbBr3/PMMA organic glasses were successfully synthesized, showing excellent optical properties. The nonlinear absorption coefficient of MAPbBr3/PMMA is competitive with perovskite materials, and its stability over time proves its potential for future optical limiting devices.
The MAPbBr3perovskite was synthesized, and X-ray diffraction proves that the MAPbBr3perovskite is a single crystal.MAPbBr3/polymethyl methacrylate (PMMA) organic glasses were fabricated. The MAPbBr3single crystal shows strong UV-visible absorption and weak transmittance. Compared with the MAPbBr3single crystal, MAPbBr3/PMMA organic glasses show suitable UV-visible absorption and trans-mittance and enhanced UV-visible absorption stability. The nonlinear optical measurement of MAPbBr3/PMMA was performed. An obviously reverse saturable absorption is observed. The nonlinear absorption coefficientis as high as 3.8 m/GW. This large nonlinear absorption coefficient is competitive compared with that of perovskite materials. Besides, then onlinear absorption stability of MAPbBr3/PMMA is also studied. Both the UV-visible absorption and nonlinear absorption over time prove the excellent stability of MAPbBr3/PMMA. The superior nonlinear refraction property of MAPbBr3/PMMA is also performed. The excellent reverse saturable absorption property and the nonlinear refraction property of MAPbBr3/PMMA result insuperior optical limiting characteristics. This work implied that MAPbBr3/PMMA may be applied for future optical limiting devices.
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