Controlled Texturing of Aluminum Sheet for Solar Energy Applications

Citation:
Ayieko CO, Musembi RJ, Ogacho AA, Aduda BO, Muthoka BM, Jain PK. "Controlled Texturing of Aluminum Sheet for Solar Energy Applications." Advances in Materials Physics and Chemistry,. 2015;5:458-466.

Abstract:

Aluminum sheets were polished to reduce ruggedness and then textured in varying acid-ethanol
concentration etchant to form pores. The textured surface was characterized structurally by using
X-ray diffraction (XRD) which revealed aluminum crystallographic planes (1 1 1), (2 0 0), (2 2 0)
and (3 1 1). Its morphology was studied by using energy dispersive X-ray (EDX) and scanning
electron microscope (SEM) that confirmed purity of aluminum sheet to be 99.66% at. Reflectance
of textured and plain aluminum sheet was analyzed by spectrophotometric measurements which
showed that texturing reduced the reflectance of the polished surface by 26% in the UV-VIS-NIR
spectrum of solar radiation. With reduced reflectance of the textured aluminum sheet, it was applicable
for solar radiation absorption.
Keywords
Aluminum, Texturing, Reflectance, Solar Energy, Electro-Polishing

Journal Article Website

UoN Websites Search