journal article·2022-05

Large‐Area Printing of Ferroelectric Surface and Super‐Domain for Solar Water Splitting

Yu Tian, Aiji Wang, Yaqing Wei, Minghui Pei, Rongrong Cao, Zhenao Gu, Qi Yuan, Yiwen Hu, Jing Wang, Kunhui Liu, Dashan Shang, Jiebin Niu, Xiaoqiang An, Run Long, Jinxing Zhang

Advanced Functional Materials· Volume 32· Issue 19
Publisher page

Abstract

Abstract Surface electronic structures of the photoelectrodes determine the activity and efficiency of the photoelectrochemical water splitting, but the control of surface structures and interfacial chemical reactions remain challenging. Here, ferroelectric BiFeO3 is used as a model system to demonstrate a controllable water splitting reaction by large‐area constructing the hydroxyls‐bonded surface. The up‐shift of band edge positions at this ferroelectric surface enables and enhances the holes and electrons transfer through the hydroxyl‐active sites, leading to enhanced oxygen or hydrogen evolutions, respectively. Furthermore, the printing of ferroelectric super‐domain with microscale checkboard up/down electric fields enhances the photogenerated carriers separation and gives rise to an order of magnitude increase of the photocurrent. This large‐area printable ferroelectric surface and super‐domain offer an alternative platform for controllable and efficient photocatalysis.
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Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Multiferroics and related materials · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics Beijing Normal University Beijing 100875 China

School of Basic Medicine Air Force Medical University Xi'an Shaanxi 710032 China

College of Chemistry Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education Beijing Normal University Beijing 100875 China

Key Laboratory of Microelectronics Devices and Integrated Technology Institute of Microelectronics Chinese Academy of Sciences Beijing 100029 China

Key Laboratory of Drinking Water Science and Technology Research Center for Eco‐Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Beijing Municipality

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