Issue 26, 2019

A hydrophobic polymer stabilized p-Cu2O nanocrystal photocathode for highly efficient solar water splitting

Abstract

For the first time, a compact hydrophobic layer composed of a macromolecular polymer was applied to inhibit the inactivation of cuprous oxide. In addition, 50 nm thick silver was sputtered on an FTO substrate as a reflective layer to enhance photon utilization efficiency, while n-TiO2 forms a semiconductor heterojunction to effectively separate photo-generated carriers. After depositing Pt as a hydrogen evolution catalyst, a photocurrent density of −5.5 mA cm−2 was finally obtained, and retained 98% photo-stability after 6 hours, and the IPCE summit reached 68.3% at 415 nm.

Graphical abstract: A hydrophobic polymer stabilized p-Cu2O nanocrystal photocathode for highly efficient solar water splitting

Supplementary files

Article information

Article type
Communication
Submitted
08 mai 2019
Accepted
12 juin 2019
First published
12 juin 2019

J. Mater. Chem. A, 2019,7, 15593-15598

A hydrophobic polymer stabilized p-Cu2O nanocrystal photocathode for highly efficient solar water splitting

Y. Li, X. Zhong, K. Luo and Z. Shao, J. Mater. Chem. A, 2019, 7, 15593 DOI: 10.1039/C9TA04822G

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