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Optimum Defect Density of Organic–in Organic for High Efficiency Perovskites Solar Cells |
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PP: 143-151 |
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doi:10.18576/ijtfst/130208
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Author(s) |
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Murtadha J. Edam,
Hawraa M. Khadier,
Samir M. AbdulAlmohsin,
Baraa H. Auad,
Dhuha E. Tarek,
Mushtaq O. Oleiw,
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Abstract |
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| In this paper, device modeling of lead-free perovskite solar cells was done using the perovskite absorber layer C_(s_2 ) AgBi_0.75 Sb_0.25 Br_6 with a big bandgap of 1.8 eV, a PCBM layer for the electron transport layer, which is renowned for its anti-hysteresis effect, and a NiO layer for the hole transport layer, which increases stability and boosts the cells efficiency. The SCAPS-1D, which is highly suited for analyzing photovoltaic design, was used to examine new architecture. Using this software technique, we conducted an analysis the thickness, defect density, operating temperature and work function of the model through modeling under different circumstances. With the optimize the thickness to be (0.3 µm) corresponding best efficiency among several perovskite thicknesses, the defect density of absorber layer (10^13 cm-3) and maximum power conversion efficiency PCE rose to 35.47%, which is a promising result, the short-circuit current density Jsc is 33.498903 (mA/cm2), and fill factor FF is 78.00% and open-circuit voltage Voc is 1.3584 (V). while, the effect of the working temperature was evaluated, and the outcomes demonstrate that lead-free perovskite cells work quite well increase with increase in temperature then start decrease at 400 K. Finally, study effects for change of the work function on the major parameters of perovskite solar cells. |
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