Enhanced photoelectrochemical hydrogen production efficiency of MoS2-Si heterojunction.

Alarawi, Abeer; Ramalingam, Vinoth; Fu, Hui-Chun; Varadhan, Purushothaman; Yang, Rusen; He, Jr-Hau

Abstract

Photoelectrochemical water splitting is one of the viable approaches to produce clean hydrogen energy from water. Herein, we report MoS 2 /Si-heterojunction (HJ) photocathode for PEC H 2 production. The MoS 2 /Si-HJ photocathode exhibits exceptional PEC H 2 production performance with a maximum photocurrent density of 36.33 mA/cm 2 , open circuit potential of 0.5 V vs. RHE and achieves improved long-term stability up to 10 h of reaction time. The photocurrent density achieved by MoS 2 /Si-HJ photocathode is significantly higher than most of the MoS 2 coupled Si-based photocathodes reported elsewhere, indicating excellent PEC H 2 production performance.

Citation

ALARAWI, A., RAMALINGAM, V., FU, H.-C., VARADHAN, P., YANG, R. and HE, J.-H. 2019. Enhanced photoelectrochemical hydrogen production efficiency of MoS2-Si heterojunction. Optics express [online], 27(8), pages A352-A363. Available from: https://doi.org/10.1364/OE.27.00A352

• Journal Article Type: Article
• Acceptance Date: Feb 11, 2019
• Online Publication Date: Mar 18, 2019
• Publication Date: Apr 15, 2019
• Deposit Date: Oct 24, 2023
• Publicly Available Date: Jan 15, 2024
• Journal: Optics express
• Electronic ISSN: 1094-4087
• Publisher: Optical Society of America
• Peer Reviewed: Peer Reviewed
• Volume: 27
• Issue: 8
• Pages: A352-A363
• DOI: https://doi.org/10.1364/OE.27.00A352
• Keywords: Hydrogen; Renewable energy; Photoelectrochemistry
• Public URL: https://rgu-repository.worktribe.com/output/2120480