【摘 要】
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In recent years,flexible perovskite solar cells have received extensive attention and rapid development due to their advantages of lightweight,portability,weara
【机 构】
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Department of Electronic Science and Technology,College of Electronic Information and Optical Engine
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In recent years,flexible perovskite solar cells have received extensive attention and rapid development due to their advantages of lightweight,portability,wearability and applications in near-space.However,due to the limitations of their preparation process and other factors,high-efficiency and large-area flexi-ble perovskite solar cells still have a lot of room for development.In our work,a flexible perovskite solar cell(PEN/ITO/SnO2/KCl/Cs0.05(MA0.17FA0.83)0.95Pb(I0.83Br0.17)3/spiro/Au)was prepared using a low tem-perature(no higher than 100℃)solution process,and the device with the highest efficiency of 16.16% was obtained by adjusting the concentration of the KCl modified layer.Meanwhile,the efficiency of the large area(1 cm2)flexible solar cell was higher than 13%.At the same time,the passivation of the KCl interface modification layer inhibits the formation of the defect states,which reduced the surface recom-bination of the perovskite and improved the carrier transport performance,and the hysteresis effect of the device was also reduced accordingly.
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