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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 1033-1036 |
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Khorram D, Shooshtari L, Samadpour M, Esfandiar A. Fabrication of three cationic halide perovskite-based photodetectors with blocking & optimized mesoporous TiO2. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :1033-1036
URL: http://opsi.ir/article-1-2024-en.html
URL: http://opsi.ir/article-1-2024-en.html
1- Physics Department, K.N.Toosi University of technology, Tehran, Iran
2- Physics Department, Sharif University of technology, Tehran, Iran
2- Physics Department, Sharif University of technology, Tehran, Iran
Abstract: (1646 Views)
In this study, perovskite-based photodetectors were fabricated with mixture of FA, MA and Cs cations. Reaching to the best structure, we deposited mesoporous TiO2 layer with different thicknesses on the substrates. Investigations show that the best performance of the photodetector is achieved by the presence of a barrier layer and two layers of mesoporous TiO2. This structure transmits a current of 126 nA at 3 V under blue light illumination, which shows a two-fold increase over the current obtained from the same structure without the presence of a barrier layer. Also, the optimum structure reflects the steady current after 8 minutes under on/off switching irradiation with the blue light and an on/off interval of 20 s.
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