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

Yang Li, Xiaolan Zhong, Kai Luo, Zongping Shao

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

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.

Original languageEnglish
Pages (from-to)15593-15598
Number of pages6
JournalJournal of Materials Chemistry A
Volume7
Issue number26
DOIs
StatePublished - 2019

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