Enhanced photoelectrochemical hydrogen production efficiency of MoS2-Si heterojunction

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

doi:10.1364/OE.27.00A352

Enhanced photoelectrochemical hydrogen production efficiency of MoS2-Si heterojunction

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

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90 Scopus citations

Abstract

Photoelectrochemical water splitting is one of the viable approaches to produce clean hydrogen energy from water. Herein, we report MoS2/Si-heterojunction (HJ) photocathode for PEC H2 production. The MoS2/Si-HJ photocathode exhibits exceptional PEC H2 production performance with a maximum photocurrent density of 36.33 mA/cm2, 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 MoS2/Si-HJ photocathode is significantly higher than most of the MoS2 coupled Si-based photocathodes reported elsewhere, indicating excellent PEC H2 production performance.

Original language	English (US)
Pages (from-to)	A352
Journal	Optics Express
Volume	27
Issue number	8
DOIs	https://doi.org/10.1364/OE.27.00A352
State	Published - Mar 18 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OSR-2016-CRG5-3005
Acknowledgements: King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR-2016-CRG5-3005), KAUST Sensor Initiative, KAUST Solar Center, KAUST Catalysis Center and KAUST baseline funding.

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10.1364/OE.27.00A352

https://repository.kaust.edu.sa/bitstream/10754/652852/1/oe-27-8-A352.pdf

Cite this

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title = "Enhanced photoelectrochemical hydrogen production efficiency of MoS2-Si heterojunction",

abstract = "Photoelectrochemical water splitting is one of the viable approaches to produce clean hydrogen energy from water. Herein, we report MoS2/Si-heterojunction (HJ) photocathode for PEC H2 production. The MoS2/Si-HJ photocathode exhibits exceptional PEC H2 production performance with a maximum photocurrent density of 36.33 mA/cm2, 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 MoS2/Si-HJ photocathode is significantly higher than most of the MoS2 coupled Si-based photocathodes reported elsewhere, indicating excellent PEC H2 production performance.",

author = "Alarawi, {Abeer A.} and Vinoth Ramalingam and Hui-Chun Fu and Purushothaman Varadhan and Rusen Yang and Jr-Hau He",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR-2016-CRG5-3005 Acknowledgements: King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR-2016-CRG5-3005), KAUST Sensor Initiative, KAUST Solar Center, KAUST Catalysis Center and KAUST baseline funding.",

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T1 - Enhanced photoelectrochemical hydrogen production efficiency of MoS2-Si heterojunction

AU - Alarawi, Abeer A.

AU - Ramalingam, Vinoth

AU - Fu, Hui-Chun

AU - Varadhan, Purushothaman

AU - Yang, Rusen

AU - He, Jr-Hau

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR-2016-CRG5-3005 Acknowledgements: King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR-2016-CRG5-3005), KAUST Sensor Initiative, KAUST Solar Center, KAUST Catalysis Center and KAUST baseline funding.

PY - 2019/3/18

Y1 - 2019/3/18

N2 - Photoelectrochemical water splitting is one of the viable approaches to produce clean hydrogen energy from water. Herein, we report MoS2/Si-heterojunction (HJ) photocathode for PEC H2 production. The MoS2/Si-HJ photocathode exhibits exceptional PEC H2 production performance with a maximum photocurrent density of 36.33 mA/cm2, 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 MoS2/Si-HJ photocathode is significantly higher than most of the MoS2 coupled Si-based photocathodes reported elsewhere, indicating excellent PEC H2 production performance.

AB - Photoelectrochemical water splitting is one of the viable approaches to produce clean hydrogen energy from water. Herein, we report MoS2/Si-heterojunction (HJ) photocathode for PEC H2 production. The MoS2/Si-HJ photocathode exhibits exceptional PEC H2 production performance with a maximum photocurrent density of 36.33 mA/cm2, 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 MoS2/Si-HJ photocathode is significantly higher than most of the MoS2 coupled Si-based photocathodes reported elsewhere, indicating excellent PEC H2 production performance.

UR - http://hdl.handle.net/10754/652852

UR - https://www.osapublishing.org/oe/abstract.cfm?uri=oe-27-8-A352

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DO - 10.1364/OE.27.00A352

M3 - Article

C2 - 31052887

SN - 1094-4087

VL - 27

SP - A352

JO - Optics Express

JF - Optics Express

IS - 8

ER -

Enhanced photoelectrochemical hydrogen production efficiency of MoS2-Si heterojunction

Abstract

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