A promising nanomaterial: CsPbBr3 nanocrystal

Xiaochen Wu; Chunjian Su

doi:10.1117/12.2637116

10 June 2022 A promising nanomaterial: CsPbBr₃ nanocrystal

Xiaochen Wu, Chunjian Su

Proceedings Volume 12179, Second International Conference on Medical Imaging and Additive Manufacturing (ICMIAM 2022); 121790M (2022) https://doi.org/10.1117/12.2637116
Event: Second International Conference on Medical Imaging and Additive Manufacturing (ICMIAM 2022), 2022, Xiamen, China

Abstract

As a new semiconductor material, CsPbBr3 nanocrystal scintillator is widely used in light-emitting diodes, lasers and Xray imaging and detection fields. Compared with the traditional single crystal scintillators, it has many advantages, such as high absorption rate, photoluminescence intensity, short fluorescence lifetime (photoluminescence decay time), strong X-ray absorption capacity and radioluminescence (RL) intensity. The results show that CsPbBr3 nanocrystal has a strong absorption ability in ultraviolet region. The photoluminescence peak is located at 525 nm, which can be well matched with the photoelectric detection device. The width of half-peak is only 15 nm, which is a good candidate for laser materials. The photoluminescence decay time is 7.29 ns by fitting fluorescence decay curve, which is important for its application in dynamic fluorescence imaging. It can emit uniform green fluorescence under X-ray excitation, which has great application potential in the field of X-ray non-destructive testing.

Citation Download Citation

Xiaochen Wu and Chunjian Su "A promising nanomaterial: CsPbBr₃ nanocrystal", Proc. SPIE 12179, Second International Conference on Medical Imaging and Additive Manufacturing (ICMIAM 2022), 121790M (10 June 2022); https://doi.org/10.1117/12.2637116

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