Narrow Bandgap Semiconductors for Photoelectrochemical Water Splitting


Narrow Bandgap Semiconductors for Photoelectrochemical Water Splitting

Sonal Singh, Rishabh Sharma and Manika Khanuja

With the aim of directing research towards the area of water splitting using photoelectrochemical (PEC) cell, it is necessary to optimize the semiconductor materials used as photoelectrodes in PEC system. Narrow band gap materials prove to ace the race due to their several favorable properties towards solar absorption and water splitting. Also, their energy and potential dynamics seem suitable for this particular application. Although, many narrow band gap materials are available to cause complete splitting of water, certain shortcomings limit their full potential efficiency. To overcome these, certain alterations or modifications are required through some strategies in the form of doping, composites, heterojunctions, and coupling etc. Coupling of narrow band gap materials with wide bandgap materials has proved extremely beneficial for both the counterparts in overcoming the drawbacks of both the materials in a composite and ultimately improving the overall efficiency of the PEC device.

Narrow Band Gap Materials, Photoelectrochemical, Water Splitting, Coupling

Published online 3/5/2020, 19 pages

Citation: Sonal Singh, Rishabh Sharma and Manika Khanuja, Narrow Bandgap Semiconductors for Photoelectrochemical Water Splitting, Materials Research Foundations, Vol. 71, pp 91-109, 2020


Part of the book on Photoelectrochemical Water Splitting

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