4.5 Article

Solar Energy Conversion and Electron Storage by a Cu2O/CuO Photocapacitive Electrode

期刊

ENERGIES
卷 16, 期 7, 页码 -

出版社

MDPI
DOI: 10.3390/en16073231

关键词

cuprous oxide; copper oxide; heterostructure; photocapacitive device; photo-assisted supercapacitor

向作者/读者索取更多资源

Developing an integrated solar energy conversion and storage device is an attractive approach to compensate for the energy loss of directly connecting separate devices. In this study, a photocapacitive device based on the Cu2O/CuO heterostructure is developed, which exhibits high specific capacitance and open-circuit potential. Additionally, the photo-charge and dark-discharge ability of the Cu2O/CuO system under zero-bias are discovered and explained using the concept of Faradaic junction. This work presents a new avenue for high-performance Cu2O-based solar energy storage devices.
Solar conversion devices are generally connected with energy storage systems to overcome the influence of sunlight variability. Developing an integrated solar energy conversion and storage device is an attractive approach to compensate for the energy loss of directly connecting these separate devices. In this work, a photocapacitive device is developed based on the Cu2O/CuO heterostructure, with Cu2O as a light absorber and CuO providing a platform for electron and ion storage. The coupling of Cu2O and CuO leads to a high specific capacitance of 135 mF/cm(2) under bias and an open-circuit potential of 0.62 V-RHE. A photo-charge and dark-discharge ability of Cu2O/CuO system under zero-bias is also discovered and explained based on the concept of Faradaic junction. This work presents an avenue for the investigation of high-performance Cu2O-based solar energy storage devices.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据