Compositional texture engineering for highly stable wide-bandgap perovskite solar cells.

Autor: Jiang Q; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Tong J; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Scheidt RA; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Wang X; Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USA.; Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo, Toledo, OH 43606, USA., Louks AE; Materials Science Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Xian Y; Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USA.; Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo, Toledo, OH 43606, USA., Tirawat R; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Palmstrom AF; Materials Science Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Hautzinger MP; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Harvey SP; Materials Science Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Johnston S; Materials Science Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Schelhas LT; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Larson BW; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Warren EL; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA., Beard MC; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.; Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, CO 80309, USA., Berry JJ; Materials Science Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.; Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, CO 80309, USA.; Department of Physics, University of Colorado Boulder, Boulder, CO 80309, USA., Yan Y; Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606, USA.; Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo, Toledo, OH 43606, USA., Zhu K; Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2022 Dec 23; Vol. 378 (6626), pp. 1295-1300. Date of Electronic Publication: 2022 Dec 22.
DOI: 10.1126/science.adf0194
Abstrakt: The development of highly stable and efficient wide-bandgap (WBG) perovskite solar cells (PSCs) based on bromine-iodine (Br-I) mixed-halide perovskite (with Br greater than 20%) is critical to create tandem solar cells. However, issues with Br-I phase segregation under solar cell operational conditions (such as light and heat) limit the device voltage and operational stability. This challenge is often exacerbated by the ready defect formation associated with the rapid crystallization of Br-rich perovskite chemistry with antisolvent processes. We combined the rapid Br crystallization with a gentle gas-quench method to prepare highly textured columnar 1.75-electron volt Br-I mixed WBG perovskite films with reduced defect density. With this approach, we obtained 1.75-electron volt WBG PSCs with greater than 20% power conversion efficiency, approximately 1.33-volt open-circuit voltage ( V oc ), and excellent operational stability (less than 5% degradation over 1100 hours of operation under 1.2 sun at 65°C). When further integrated with 1.25-electron volt narrow-bandgap PSC, we obtained a 27.1% efficient, all-perovskite, two-terminal tandem device with a high V oc of 2.2 volts.
Databáze: MEDLINE
Nepřihlášeným uživatelům se plný text nezobrazuje