Daboczi, M., Cui, J., Temerov, F., Eslava, S., Scalable All-Inorganic Halide Perovskite Photoanodes with >100 h Operational Stability Containing Earth-Abundant Materials. Adv. Mater. 2023, 35, 2304350. https://doi.org/10.1002/adma.202304350.
Scalable all-inorganic halide perovskite photoanodes with >100 h operational stability containing earth-abundant materials
|Author:||Daboczi, Matyas1; Cui, Junyi1; Temerov, Filipp1,2;|
1Department of Chemical Engineering and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ UK
2Nano and Molecular Systems Research Unit, University of Oulu, Oulu, FI-90014 Finland
|Online Access:||PDF Full Text (PDF, 1.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe20231110144584
John Wiley & Sons,
|Publish Date:|| 2023-11-10
The application of halide perovskites in the photoelectrochemical generation of solar fuels and feedstocks is hindered by the instability of perovskites in aqueous electrolytes and the use of expensive electrode and catalyst materials, particularly in photoanodes driving kinetically slow water oxidation. Here, solely earth-abundant materials are incorporated to fabricate a CsPbBr3-based photoanode that reaches a low onset potential of +0.4 VRHE and 8 mA cm−2 photocurrent density at +1.23 VRHE for water oxidation, close to the radiative efficiency limit of CsPbBr3. This photoanode retains 100% of its stabilized photocurrent density for more than 100 h of operation by replacing once the inexpensive graphite sheet upon signs of deterioration. The improved performance is due to an efficiently electrodeposited NiFeOOH catalyst on a protective self-adhesive graphite sheet, and enhanced charge transfer achieved by phase engineering of CsPbBr3. Devices with >1 cm2 area, and low-temperature processing demonstrate the potential for low capital cost, stable, and scalable perovskite photoanodes.
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
116 Chemical sciences
M.D. and S.E. acknowledge the funding of the UK Engineering and Physical Sciences Research Council (EPSRC) provided via grant EP/S030727/1. F.T. acknowledges funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programs (grant agreement No. 101002219).
|EU Grant Number:||
(101002219) CATCH - Cross-dimensional Activation of Two-Dimensional Semiconductors for Photocatalytic Heterojunctions
The data that support the findings of this study are openly available in the Imperial College London Research Data Repository at https://doi.org/10.14469/hpc/13248.
© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.