Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting

Abstract Despite achievements in the remarkable photoelectrochemical (PEC) performance of photoelectrodes based on organometal halide perovskites (OHPs), the scaling up of small‐scale OHP‐based PEC systems to large‐scale systems remains a great challenge for their practical application in solar wate...

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Main Authors: Hojoong Choi, Sehun Seo, Chang Jae Yoon, Jae‐Bin Ahn, Chan‐Sol Kim, Yoonsung Jung, Yejoon Kim, Francesca M. Toma, Heejoo Kim, Sanghan Lee
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202303106
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author Hojoong Choi
Sehun Seo
Chang Jae Yoon
Jae‐Bin Ahn
Chan‐Sol Kim
Yoonsung Jung
Yejoon Kim
Francesca M. Toma
Heejoo Kim
Sanghan Lee
author_facet Hojoong Choi
Sehun Seo
Chang Jae Yoon
Jae‐Bin Ahn
Chan‐Sol Kim
Yoonsung Jung
Yejoon Kim
Francesca M. Toma
Heejoo Kim
Sanghan Lee
author_sort Hojoong Choi
collection DOAJ
description Abstract Despite achievements in the remarkable photoelectrochemical (PEC) performance of photoelectrodes based on organometal halide perovskites (OHPs), the scaling up of small‐scale OHP‐based PEC systems to large‐scale systems remains a great challenge for their practical application in solar water splitting. Significant resistive losses and intrinsic defects are major obstacles to the scaling up of OHP‐based PEC systems, leading to the PEC performance degradation of large‐scale OHP photoelectrodes. Herein, a scalable design of the OHP‐based PEC systems by modularization of the optimized OHP photoelectrodes exhibiting a high solar‐to‐hydrogen conversion efficiency of 10.4% is suggested. As a proof‐of‐concept, the OHP‐based PEC module achieves an optimal PEC performance by avoiding major obstacles in the scaling up of the OHP photoelectrodes. The constructed OHP module is composed of a total of 16 OHP photoelectrodes, and a photocurrent of 11.52 mA is achieved under natural sunlight without external bias. The successful operation of unassisted solar water splitting using the OHP module without external bias can provide insights into the design of scalable OHP‐based PEC systems for future practical application and commercialization.
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spelling doaj.art-62851acd86ff442eb01b6413b386bdc12023-11-24T08:40:29ZengWileyAdvanced Science2198-38442023-11-011033n/an/a10.1002/advs.202303106Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water SplittingHojoong Choi0Sehun Seo1Chang Jae Yoon2Jae‐Bin Ahn3Chan‐Sol Kim4Yoonsung Jung5Yejoon Kim6Francesca M. Toma7Heejoo Kim8Sanghan Lee9School of Materials Science and Engineering Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaChemical Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USAResearch Institute for Solar and Sustainable Energies Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaResearch Institute for Solar and Sustainable Energies Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaResearch Institute for Solar and Sustainable Energies Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaSchool of Materials Science and Engineering Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaSchool of Materials Science and Engineering Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaChemical Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USAResearch Institute for Solar and Sustainable Energies Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaSchool of Materials Science and Engineering Gwangju Institute of Science and Technology Gwangju 61005 Republic of KoreaAbstract Despite achievements in the remarkable photoelectrochemical (PEC) performance of photoelectrodes based on organometal halide perovskites (OHPs), the scaling up of small‐scale OHP‐based PEC systems to large‐scale systems remains a great challenge for their practical application in solar water splitting. Significant resistive losses and intrinsic defects are major obstacles to the scaling up of OHP‐based PEC systems, leading to the PEC performance degradation of large‐scale OHP photoelectrodes. Herein, a scalable design of the OHP‐based PEC systems by modularization of the optimized OHP photoelectrodes exhibiting a high solar‐to‐hydrogen conversion efficiency of 10.4% is suggested. As a proof‐of‐concept, the OHP‐based PEC module achieves an optimal PEC performance by avoiding major obstacles in the scaling up of the OHP photoelectrodes. The constructed OHP module is composed of a total of 16 OHP photoelectrodes, and a photocurrent of 11.52 mA is achieved under natural sunlight without external bias. The successful operation of unassisted solar water splitting using the OHP module without external bias can provide insights into the design of scalable OHP‐based PEC systems for future practical application and commercialization.https://doi.org/10.1002/advs.202303106organometal halide perovskitephotoelectrochemical water splittingunassisted solar water splittingscalablemodule
spellingShingle Hojoong Choi
Sehun Seo
Chang Jae Yoon
Jae‐Bin Ahn
Chan‐Sol Kim
Yoonsung Jung
Yejoon Kim
Francesca M. Toma
Heejoo Kim
Sanghan Lee
Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting
Advanced Science
organometal halide perovskite
photoelectrochemical water splitting
unassisted solar water splitting
scalable
module
title Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting
title_full Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting
title_fullStr Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting
title_full_unstemmed Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting
title_short Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting
title_sort organometal halide perovskite based photoelectrochemical module systems for scalable unassisted solar water splitting
topic organometal halide perovskite
photoelectrochemical water splitting
unassisted solar water splitting
scalable
module
url https://doi.org/10.1002/advs.202303106
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