A hydrophobic polymer stabilized p-Cu2O nanocrystal photocathode for highly efficient solar water splitting. Issue 26 (20th June 2019)

• Record Type: Journal Article
• Authors: Li, Yang; Zhong, Xiaolan; Luo, Kai; Shao, Zongping
• Is Part Of: Journal of materials chemistry. Volume 7:Issue 26(2019)
• Page Start: 15593
• Page End: 15598
• Publication Date: 2019-06-20
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c9ta04822g
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : For the first time, a compact hydrophobic layer composed of a macromolecular polymer was applied to inhibit the inactivation of cuprous oxide. 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.