Proceedings of Online Meetup: Origins of Electronic Defects in Halide Perovskites (EDHP)
Publication date: 1st April 2020
We present a p-i-n perovskite solar cell (PSC) fully printed in air (except for the electrodes) incorporating an ultra-thin Bathocuproine (BCP) buffer interlayer which was deposited for the first time by blade coating. The p-i-n PSC delivered a maximum power conversion efficiency (PCE) of 14.9% over an active area of 0.5 cm2 under standard test conditions (STC). The buffer improved the PCE of the PSCs by reducing the charge recombination at the PCBM/Ag interface.
Also, an Ag electrode was screen printed on top of PSC with n-i-p structure reaching a PCE of ~5% over an area of 0.5cm2. These results highlight important factors which will help those developing printable PSC with either inverted or regular structure.
The authors thank Jair Rodrigues for the preparation of printed electrodes. Thank to Petrobras project to be the main funder of this work. S.C.H thanks to Departamento del Huila's Scholarship No. 677 for funding. Thank to the Centro de Microscopia of Universidade Federal de Minas Gerais (CM-UFMG) for AFM microscopies.
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