[en] High bandgap semitransparent solar cells based on CH3NH3PbBr3 perovskites are attractive for building integration, tandem cells, and electrochemical applications. The lack of control of the CH3NH3PbBr3 perovskite growth limit the exploitation of CH3NH3PbBr3-based perovskite solar cells. Herein, a posttreatment is carried out after the initial CH3NH3PbBr3 crystallization based on methylamine gas that drastically enhances the perovskite quality leading to a highly crystalline film with improved average visible transmittance (AVT) close to 56%. Opaque devices showed outstanding results in terms of open-circuit voltage and power conversion efficiency (PCE) reaching 1.54 V and 9.2%, respectively. These achievements are ascribed to a film with reduced morphological defects and better interface quality and reduced nonradiative pathways. For the first time, the fabrication of semitransparent CH3NH3PbBr3-based solar cells is demonstrated reaching a maximum PCE equal to 7.6%, an AVT of the full stack device of 52%, and an excellent light stability at maximum-power point tracking.
Disciplines :
Physics
Author, co-author :
Singh, Ajay ; Technical University of Munich > Department of Electrical and Computer Engineering
Matteocci, Fabio; CHOSE (Centre for Hybrid and Organic Solar Energy) Department of Electronic Engineering University of Rome “Tor Vergata” 00133 Rome, Italy
Zhu, Hongwei; Laboratory of Photonics and Interfaces (LPI) Ecole Polytechnique Fédérale de Lausanne 1015 Lausanne, Switzerland
Rossi, Daniele; CHOSE (Centre for Hybrid and Organic Solar Energy) Department of Electronic Engineering University of Rome “Tor Vergata” 00133 Rome, Italy
Mejaouri, Salim; Institut Photovoltaïque d’Île-de-France (IPVF) 91120 Palaiseau, France ; EDF R&D 91120 Palaiseau, France
Cacovich, Stefania; Institut Photovoltaïque d’Île-de-France (IPVF) 91120 Palaiseau, France ; CNRS, École Polytechnique, IPVF, UMR 9006 91120 Palaiseau, France
Auf Der Maur, Matthias; CHOSE (Centre for Hybrid and Organic Solar Energy) Department of Electronic Engineering University of Rome “Tor Vergata” 00133 Rome, Italy
Sauvage, Frédéric; Laboratoire de Réactivité et Chimie des Solides CNRS UMR7314, Université de Picardie Jules Verne, Hub de l’énergie 80039 Amiens, France
Gagliardi, Alessio; Department of Electrical and Computer Engineering Technical University of Munich 80333 Munich, Germany
Grätzel, Michael; Laboratory of Photonics and Interfaces (LPI) Ecole Polytechnique Fédérale de Lausanne 1015 Lausanne, Switzerland
Di Carlo, Aldo; CHOSE (Centre for Hybrid and Organic Solar Energy) Department of Electronic Engineering University of Rome “Tor Vergata” 00133 Rome, Italy
External co-authors :
yes
Language :
English
Title :
Methylamine Gas Treatment Affords Improving Semitransparency, Efficiency, and Stability of CH3NH3PbBr3-Based Perovskite Solar Cells
