What is it about?

Molybdenum oxide is a high work-function material, and it provides a significant built-in potential when it combines with a Gallium phosphide. This built-in potential is a driving force to transfer the holes from the Gallium phosphide, and the holes are delivered through the defects of the Molybdenum oxide. We used this mechanism for charging the redox flow battery in this work.

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Why is it important?

We demonstrate, for the first time, the Molybdenum oxide/Gallium phosphide combination for the solar energy conversion device. Also, no study on the Gallium phosphide device for the redox flow battery application has been demonstrated.


This article is of importance because it shows a protectiveness of the Molybdenum oxide as a hole transfer layer for the wide bandgap materials, such as Gallium phosphide.

Dowon Bae
Technische Universiteit Delft

Read the Original

This page is a summary of: Tailored energy level alignment at MoOX/GaP interface for solar-driven redox flow battery application, The Journal of Chemical Physics, March 2020, American Institute of Physics, DOI: 10.1063/1.5136252.
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