Flexible BiVO4/WO3/ITO/Muscovite Heterostructure for Visible-Light Photoelectrochemical Photoelectrode

Pao Wen Shao, Yi Syuan Siao, Yu Hong Lai, Ping Yen Hsieh, Chun Wen Tsao, Yu Jung Lu, Yi Chun Chen, Yung Jung Hsu, Ying Hao Chu

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Flexible electronics has recently captured extensive attention due to its intriguing functionalities and great potential for influencing our daily life. In addition, with the increasing demand for green energy, photoelectrochemical (PEC) water splitting is a clean process that directly converts solar energy to chemical energy in the form of hydrogen. Thus the development of flexible green energy electronics represents a new domain in the research field of energy harvesting. In this work, we demonstrate the BiVO4 (BVO)/WO3/ITO/muscovite heterostructure photoelectrode for water splitting with flexible characteristics. The performance of BVO was modified by specific crystal facets, and the BVO/WO3 bilayer exhibited superior performance of 33% enhanced PEC activity at 1 V vs Ag/AgCl compared with pure BVO due to the proper staggered band alignment. Moreover, excellent mechanical stability was verified by a series of bending modes. This study demonstrates a pathway to a flexible photoelectrode for developing innovative devices for solar fuel generation.

Original languageEnglish
Pages (from-to)21186-21193
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number18
Publication statusPublished - 2021 May 12

All Science Journal Classification (ASJC) codes

  • General Materials Science


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