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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.7
- 수록면
- 391 - 399 (9page)
- DOI
- https://doi.org/10.1007/s13391-022-00346-8
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초록· 키워드
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Photoelectrochemical (PEC) water splitting is one of the critical energy conversion techniques to prepare for future energydemands. Among the various trials to construct effective water splitting semiconductor photoelectrodes, In2O3/In2S3 heterostructurescan be promising candidates for their advantageous properties in solar water oxidation. Herein, we synthesizedIn2O3nanorods on FTO substrate through a direct glancing angle deposition method. Subsequently, the In2S3layer wasconformally coated on In2O3nanorods through facile chemical bath deposition. As synthesized photoanodes of In2O3/In2S3form type II junction, leading to considerable cathodic onset potential shift with the increased photocurrent density comparedto pristine samples. To further enhance PEC properties, the interficial engineering strategies of the Co ion doping and thedeposition of ultra-thin Al2O3film were carried out. Co ion could facilitate the charge transfer in photoanodes through theincreased surface area, and the 2 nm Al2O3layer coated above the photoanode effectively worked as the passivation layer tostabilize the photoanodes in alkaline electrolytes environments. This work would contribute to developing efficient photoanodesthrough various nanoscale engineering strategies.
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