Development of Chalcogenide Thin Film Materials for Photoelectrochemical Hydrogen Production

ABSTRACTIn the present communication, we report our efforts to integrate chalcogenide-based photoelectrochemical (PEC) materials into a standalone device capable of water-splitting using sunlight as the only source of energy. More specifically, the PEC performances of copper gallium diselenide are presented. First, a brief introduction to the material microstructural characteristics is presented. Then, the PEC properties are discussed, including incident-photonto-current efficiency (>60% in the visible), Faradaic efficiency (uncatalyzed, 86%) and durability (400 hours). Finally, we report the solar-to-hydrogen benchmark efficiency (3.7%) of a device made of a CuGaSe2 photocathode and a-Si solar cells measured in a 2-electrode configuration using a RuO2 counter electrode.

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Wide Bandgap Copper Indium Gallium Disulfide Thin Film Materials for Photoelectrochemical Hydrogen Production

ECS Meeting Abstracts ◽

10.1149/ma2015-02/43/1702 ◽

2015 ◽

Keyword(s):

Thin Film ◽

Hydrogen Production ◽

Wide Bandgap ◽

Copper Indium ◽

Indium Gallium ◽

Photoelectrochemical Hydrogen Production ◽

Copper Indium Gallium

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Co–Mo–Se ternary chalcogenide thin film coated p-Si photocathode for efficient solar hydrogen production

Functional Materials Letters ◽

10.1142/s1793604721510024 ◽

2020 ◽

pp. 2151002

Author(s):

Cihan Kuru

Keyword(s):

Thin Film ◽

Hydrogen Production ◽

Photocurrent Density ◽

Superior Performance ◽

Great Promise ◽

High Catalytic Activity ◽

Hydrogen Electrode ◽

Onset Potential ◽

Ternary Chalcogenide ◽

Chalcogenide Thin Film

Photoelectrochemical (PEC) water splitting holds a great promise for clean and sustainable hydrogen production. In this study, the PEC performance of Co–Mo–Se ternary chalcogenide thin film coated Si photocathodes is investigated. The Co–Mo–Se films with various Co/Mo atomic ratios were prepared by thermal selenization of sputter deposited Co–Mo alloy films. Among the photocathodes, the Co–Mo–Se (3:10)/[Formula: see text]-Si surpasses the PEC performance of the MoSe2/[Formula: see text]-Si with an onset potential of +124 mV vs. reversible hydrogen electrode (RHE), a photocurrent density of −22.68 mA/cm2 at zero overpotential and good stability over 6 h period of test. The superior performance of the Co–Mo–Se (3:10)/[Formula: see text]-Si is ascribed to the high catalytic activity of the film in hydrogen evolution reaction (HER) and efficient collection of photogenerated charge carriers. Such ternary chalcogenide thin films offer exciting opportunities for many applications in which the physicochemical properties can be tuned by changing the relative amount of the solute atoms.

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Nanofiber-supported CuS nanoplatelets as high efficiency counter electrodes for quantum dot-based photoelectrochemical hydrogen production

Materials Chemistry Frontiers ◽

10.1039/c6qm00144k ◽

2017 ◽

Vol 1 (1) ◽

pp. 65-72 ◽

Cited By ~ 14

Author(s):

F. Navarro-Pardo ◽

L. Jin ◽

R. Adhikari ◽

X. Tong ◽

D. Benetti ◽

...

Keyword(s):

Hydrogen Production ◽

Quantum Dot ◽

Copper Sulfide ◽

Counter Electrode ◽

High Efficiency ◽

Hydrogen Generation ◽

Polymer Nanofibers ◽

Counter Electrodes ◽

Photoelectrochemical Hydrogen Production

A hybrid counter electrode based on copper sulfide/polymer nanofibers was developed for efficient and stable photoelectrochemical hydrogen generation.

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