Presentation Information

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-E218-2]Optimization of optical cooling devices in CsPbBr₃/Cs₄PbBr₆ crystals considering the diffusion of carrier through self-absorption effect

〇Daichi Tanaka¹, Shuhei Ichikawa^1,2, Yasuhiro Yamada³, Kazunobu Kojima¹ (1.The Univ. of Osaka, 2.Research Center for UHVEM, the Univ. of Osaka, 3.Chiba Univ.)

Keywords:

semiconductor optical cooling,photoluminescence,perovskite

The perovskite crystal CsPbBr₃/Cs₄PbBr₆ exhibits highly efficient green photoluminescence and excellent stability in air. Moreover, photon emission with energies higher than that of the excitation light has been observed, indicating its potential application in semiconductor optical cooling. We have previously demonstrated that reducing the dimensionality of the crystal structure can suppress the self-absorption effect and improve cooling efficiency. In this study, we will also focus on the behavior of photons under strong excitation to identify the optimal structure.

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[9p-E218-2]Optimization of optical cooling devices in CsPbBr3/Cs4PbBr6 crystals considering the diffusion of carrier through self-absorption effect

Keywords:

[9p-E218-2]Optimization of optical cooling devices in CsPbBr₃/Cs₄PbBr₆ crystals considering the diffusion of carrier through self-absorption effect