Temperature Dependent Transient Photoconductive Response of CsPbBr3 NCs

Jiashun FAN; Donglin XIA; Baoshun LIU

doi:10.15541/jim20230008

Journals >Journal of Inorganic Materials >Volume 38 >Issue 8 >Page 893 > Article

Journal of Inorganic Materials
Vol. 38, Issue 8, 893 (2023)

Temperature Dependent Transient Photoconductive Response of CsPbBr₃ NCs

Jiashun FAN¹, Donglin XIA^2,*, and Baoshun LIU²

Author Affiliations

¹1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

²2. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China

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DOI: 10.15541/jim20230008 Cite this Article

Jiashun FAN, Donglin XIA, Baoshun LIU. Temperature Dependent Transient Photoconductive Response of CsPbBr₃ NCs [J]. Journal of Inorganic Materials, 2023, 38(8): 893 Copy Citation Text

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Preparation process of CsPbBr3 NC thin film sample and schematic diagram of the transient photoconduction test

1. Preparation process of CsPbBr₃ NC thin film sample and schematic diagram of the transient photoconduction test

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Optical absorption, PL spectra, microstructure and micromorphology of CsPbBr3 NCs

2. Optical absorption, PL spectra, microstructure and micromorphology of CsPbBr₃ NCs

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3. Curves of photo-generated current with light cycle time(t) at different temperatures and excitation powers for photoconductive samples

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4. Curves of temperature-dependent carrier photo-generated currents and the fastest decay time constants of the photoconductive samples

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5. Curves of excitation power-dependent carrier photo-generated current and the fastest decay time constant of the photoconductive samples

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Temperatures/K	τ₁/μs	τ₂/μs	τ₃/μs
133	(3.759±0.223)	(124.77±6.69)	(1324.35±361.18)
153	(3.723±0.216)	(127.40±5.72)	(1545.52±582.47)
173	(3.885±0.209)	(134.73±6.23)	(2141.44±1403.33)
193	(4.680±0.260)	(107.52±5.69)	(720.84±118.71)
213	(5.015±0.240)	(128.03±4.42)	(1473.34±412.23)
233	(5.985±0.322)	(124.42±4.29)	(1725.43±171.92)
253	(6.439±0.270)	(133.90±3.88)	(1535.70±80.51)
273	(7.721±0.193)	(133.68±2.92)	(1249.10±30.38)
293	(5.792±0.152)	(121.84±2.33)	(1249.65±34.02)
313	(5.176±0.140)	(123.42±2.59)	(1215.50±43.39)
333	(5.238±0.137)	(119.48±2.78)	(1061.38±47.03)
353	(4.638±0.114)	(115.78±3.05)	(1127.95±113.98)
373	(4.254±0.128)	(116.16±4.02)	(2370.56±1223.21)

Table 1. Fitting parameters of time normalized current curve at different temperatures

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Power/mW	τ₁/μs	τ₂/μs	τ₃/μs
200	(25.955±0.493)	(117.67±22.31)	(822.18±234.43)
300	(15.411±0.686)	(91.76±17.61)	(502.61±110.28)
400	(10.856±0.392)	(86.72±13.96)	(423.04±60.38)
500	(13.300±0.351)	(100.49±15.70)	(444.26±71.77)
600	(10.824±0.281)	(52.30±4.84)	(318.36±12.73)
700	(8.775±0.322)	(74.87±6.95)	(353.29±21.81)
800	(11.546±0.210)	(62.75±6.64)	(325.15±15.40)
900	(11.412±0.183)	(89.94±7.53)	(386.28±29.85)
1000	(9.431±0.132)	(51.78±2.85)	(294.00±7.33)

Table 2. Fitting parameters of time normalized current curve at different powers

Jiashun FAN, Donglin XIA, Baoshun LIU. Temperature Dependent Transient Photoconductive Response of CsPbBr₃ NCs [J]. Journal of Inorganic Materials, 2023, 38(8): 893

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