Alex, Sherine and Chattopadhyay, Kamanio and Basu, Bikramjit (2016) Tailored specular reflectance properties of bulk Cu based novel intermetallic alloys. In: SOLAR ENERGY MATERIALS AND SOLAR CELLS, 149 . pp. 66-74.
PDF
Sol_Eng_Mat_Sol_Cel_149_66_2016.pdf - Published Version Restricted to Registered users only Download (4MB) | Request a copy |
Abstract
Significant research has been pursued to develop solar selective metallic coatings using a variety of coating deposition techniques, with limited attempts to assess the properties of bulk metallic materials for solar energy applications. In developing bulk solar reflectors with good reflectance in the entire solar range, we report a new class of reflector materials based on Cu-Sn intermetallics with tailored substitution of aluminium or zinc. Our experimental results suggest that the arc melted-suction cast Cu (78.8 at%)-Al (21.2 at%) alloy with nanoscale surface roughness can exhibit a combination of 89% bulk specular reflectance and 83% bulk solar reflectance, together with a hardness of 2 GPa. We show that the present alloy design approach paves the way for further opportunities of tuning the spectral properties of this new class of solar reflector material. (C) 2016 Elsevier B.V. All rights reserved.
Item Type: | Journal Article |
---|---|
Publication: | SOLAR ENERGY MATERIALS AND SOLAR CELLS |
Publisher: | ELSEVIER SCIENCE BV |
Additional Information: | Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
Keywords: | Solar reflectors; Specular reflectance; Intermetallic alloy |
Department/Centre: | Division of Chemical Sciences > Materials Research Centre Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering |
Date Deposited: | 11 May 2016 05:25 |
Last Modified: | 06 Oct 2018 13:38 |
URI: | http://eprints.iisc.ac.in/id/eprint/53763 |
Actions (login required)
View Item |