Sandwich-Nanostructured n-Cu₂O/AuAg/p-Cu₂O Photocathode with Highly Positive Onset Potential for Improved Water Reduction
學年 108
學期 1
出版（發表）日期 2019-10-01
作品名稱 Sandwich-Nanostructured n-Cu₂O/AuAg/p-Cu₂O Photocathode with Highly Positive Onset Potential for Improved Water Reduction
作品名稱（其他語言）
著者 Yu-Chang Lin, Liang-Ching Hsu, Chia-Yu Lin, Chao-Lung Chiang, Che-Min Chou, Wen-Wei Wu, San-Yuan Chen, Yan-Gu Lin
單位
出版者
著錄名稱、卷期、頁數 ACS Applied Materials & Interfaces, 11, 42, 38625–38632
摘要 An n-Cu2O layer formed a high-quality buried junction with p-Cu2O to increase the photovoltage and thus to shift the turn-on voltage positively. Mott–Schottky measurements confirmed that the improvement benefited from a positive shift in flat-band potential. The obtained extremely positive onset potential, 0.8 VRHE in n-Cu2O/AuAg/p-Cu2O, is comparable with measurements from water reduction catalysts. The AuAg alloy sandwiched between the homojunction of n-Cu2O and p-Cu2O improved the photocatalytic performance. This alloy both served as an electron relay and promoted electron-hole pair generation in nearby semiconductors; the charge transfer between n-Cu2O and p-Cu2O in the sandwich structure was measured with X-ray absorption spectra. The proposed sandwich structure can be considered as a new direction for the design of efficient solar-related devices.
關鍵字 Solar water splitting, Sandwich structure, Copper(I) oxide, Photocathode, Localized surface plasmon resonance
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI SSCI Scopus
產學合作
通訊作者 San-Yuan Chen & Yan-Gu Lin
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
SDGS 可負擔的潔淨能源,產業創新與基礎設施