1. Integrated halide perovskite photoelectrochemical cells with solar-driven water-splitting efficiency of 20.8%
- Author
-
Fehr, Austin, Agrawal, Ayush, Mandani, Faiz, Conrad, Christian, Jiang, Qi, Park, So Yeon, Alley, Olivia, Li, Bor, Sidhik, Siraj, Metcalf, Isaac, Botello, Christopher, Young, James, Even, Jacky, Blancon, Jean Christophe, Deutsch, Todd, Zhu, Kai, Albrecht, Steve, Toma, Francesca, Mohite, Aditya, Rice University [Houston], National Renewable Energy Laboratory (NREL), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Helmholtz-Zentrum Berlin, Institut des Fonctions Optiques pour les Technologies de l'informatiON (Institut FOTON), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[PHYS]Physics [physics] ,[CHIM]Chemical Sciences - Abstract
Achieving high solar-to-hydrogen (STH) efficiency concomitant with long-term durability using low-cost, scalable photo-absorbers is a long-standing challenge. Here we report the design and fabrication of a conductive adhesive-barrier (CAB) that translates >99% of photoelectric power to chemical reactions. The CAB enables halide perovskite-based photoelectrochemical cells with two different architectures that exhibit record STH efficiencies. The first, a co-planar photocathode-photoanode architecture, achieved an STH efficiency of 13.4% and 16.3 h to t 60 , solely limited by the hygroscopic hole transport layer in the n-i-p device. The second was formed using a monolithic stacked silicon-perovskite tandem, with a peak STH efficiency of 20.8% and 102 h of continuous operation before t 60 under AM 1.5G illumination. These advances will lead to efficient, durable, and low-cost solar-driven water-splitting technology with multifunctional barriers.
- Published
- 2023