Pinhole-free perovskite films for efficient solar modules

W. Qiu; T. Merckx; M. Jaysankar; C. Masse de la Huerta; L. Rakocevic; W. Zhang; U. W. Paetzold; R. Gehlhaar; L. Froyen; J. Poortmans; D. Cheyns; H. J. Snaith; P. Heremans

doi:10.1039/C5EE03703D

Pinhole-free perovskite films for efficient solar modules†

W. Qiu,*^ab T. Merckx,^a M. Jaysankar,^ac C. Masse de la Huerta,^a L. Rakocevic,^ac W. Zhang,^d U. W. Paetzold,^a R. Gehlhaar,^a L. Froyen,^b J. Poortmans,^ac D. Cheyns,^a H. J. Snaith^d and P. Heremans*^ac

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* Corresponding authors

^a IMEC, Kapeldreef 75, Heverlee, Belgium
E-mail: Weiming.Qiu@imec.be, Paul.Heremans@imec.be

^b MTM, KU Leuven, Heverlee, Belgium

^c ESAT, KU Leuven, Heverlee, Belgium

^d Dept. Physics, University of Oxford, UK

Abstract

We report on a perovskite solar module with an aperture area of 4 cm² and geometrical fill factor of 91%. The module exhibits an aperture area power conversion efficiency (PCE) of 13.6% from a current–voltage scan and 12.6% after 5 min of maximum power point tracking. High PCE originates in pinhole-free perovskite films made with a precursor combination of Pb(CH₃CO₂)₂·3H₂O, PbCl₂, and CH₃NH₃I.

Energy & Environmental Science

Pinhole-free perovskite films for efficient solar modules†

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