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DeLuca, Giovanni; Jumabekov, Askhat N.; Hu, Yinghong; Simonov, Alexandr N.; Lu, Jianfeng; Tan, Bör; Adbyaksa, Gede W. P.; Garnett, Erik C.; Reichmanis, Elsa; Chesman, Anthony S. R.; Bach, Udo (2018): Transparent Quasi-Interdigitated Electrodes for Semitransparent Perovskite Back-Contact Solar Cells. In: ACS Applied Energy Materials, Vol. 1, No. 9: pp. 4473-4478
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Transparent quasi-interdigitated electrodes (t-QIDEs) were produced by replacing the opaque components of existing QIDEs with indium tin oxide (ITO). We demonstrate their application in the first semitransparent back-contact perovskite solar cell. A device with a V-OC of 0.88 V and a J(SC) of 5.6 mA cm(-2) produced a modest 1.7% efficiency. The use of ITO allows for illumination of the device from front and rear sides, resembling a bifacial solar cell, both of which yield comparable efficiencies. Coupled optoelectronic simulations reveal this architecture may achieve power conversion efficiencies of up to 11.5% and 13.3% when illuminated from the front and rear side, respectively, using a realistic quality of perovskite material.