Chinese Journal of Quantum Electronics, Volume. 42, Issue 1, 18(2025)
Intrinsic carrier dynamics of MAPbI3 perovskites
Fig. 2. Timing diagram of the high sensitive nanosecond TA spectrometer
Fig. 4. (a) Visible light absorption spectrum of MAPbI3 film; (b) PL spectrum of MAPbI3 thin film at room temperature under the excitation of laser with the wavelength of 516 nm and pulse energy of 2 nJ; (c) TRPL curve at the wavelength of 778 nm and the fitting result
Fig. 5. Testing result of MAPbI3 thin films at 296 K. (a) TA spectra at different time delays under femtosecond laser excitation with an excitation wavelength of 517.5 nm, pulse energy of 50 nJ, and a spot diameter about 3 mm; (b) TA curves under detection wavelength of 758 nm and nanosecond pump laser pulses with energy of 4, 2, 1 nJ, and spot size of approximately 4 mm × 2.5 mm; (c) Fitting result for the pump pulse energy of 2 nJ
Fig. 6. Testing result of MAPbI3 thin films at 220 K. (a) TA spectra at different time delays under femtosecond laser excitation wavelength of 517.5 nm, pulse energy of 50 nJ, and a spot diameter about 3 mm; (b) TA curves under detection wavelength of 771 nm and nanosecond pump laser pulses with energy of 4, 2, 1 nJ,and spot size of approximately 4 mm × 2.5 mm; (c) Fitting result for the pump pulse energy of 2 nJ
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Dabing CHENG, Jiacheng WANG, Wen ZENG, Yuanqin YU, Zefeng REN. Intrinsic carrier dynamics of MAPbI3 perovskites[J]. Chinese Journal of Quantum Electronics, 2025, 42(1): 18
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Received: Mar. 13, 2023
Accepted: --
Published Online: Mar. 5, 2025
The Author Email: CHENG Dabing (dbcheng@dicp.ac.cn)