Synthesis and optical properties of electrodeposited crystalline Cu2O in the Vis-NIR range for solar selective absorbers

被引：15

作者：

Alami, Abdul Hai ^{[1
]}

Allagui, Anis ^{[1
]}

Alawadhi, Hussain ^{[2
]}

机构：

[1] Univ Sharjah, Sustainable & Renewable Energy Engn, Sharjah, U Arab Emirates

[2] Univ Sharjah, Dept Appl Phys, Sharjah, U Arab Emirates

来源：

RENEWABLE ENERGY | 2015年 / 82卷

关键词：

Electrodeposition; Cu2O selective absorbers; Spectroscopy; OXIDE THIN-FILMS; COPPER; SURFACES; OXIDATION; COATINGS; CELLS; WATER; SI;

D O I：

10.1016/j.renene.2014.08.040

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper reports on the thermal oxidation of electrodeposited copper microstructures from a 0.2 M H2SO4 + 0.4 M CuSO4 aqueous solution on a copper substrate for selective solar thermal absorbers applications. A study of the morphological properties and crystalline structure of the deposited/annealed layer through SEM-EDS and powder XRD revealed the formation of self-assembled cubic Cu2O microstructures. The copper oxide layer was optically examined by virtue of a spectrometer in the spectral Vis-NIR range. The surface roughness induced by the existence of the globular microstructure has been seen to enhance the absorptance of the material. Around two to three-fold enhancement of optical surface absorption is achieved in the wavelength range of 400-1000 nm versus an air-grown copper oxide. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：21 / 25

页数：5

共 26 条

[1] Investigation in utilizing paraboloid concentrators for thermal perforation of metals [J].