Chemically deposited electrochromic cuprous oxide films for solar light modulation

Thin cuprous oxide electrochromic films on the transparent conductive electrodes were prepared by chemical electroless method. The films cycled in K +-based electrolyte revealed typical red-ox peaks with higher intensity compared to those in the Li + and the Na +-based electrolytes. The durability o...

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Bibliographic Details
Published in:Solar energy materials and solar cells 2007-09, Vol.91 (14), p.1361-1365
Main Authors: Ristova, M., Neskovska, R., Mirčeski, V.
Format: Article
Language:English
Subjects:
Applied sciences
Cuprous oxide
Cyclic voltammetry
Electrochromism
Energy
Exact sciences and technology
Miscellaneous
Natural energy
Photovoltaic conversion
Response time
Solar cells. Photoelectrochemical cells
Solar energy
Solar light modulation
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Summary:Thin cuprous oxide electrochromic films on the transparent conductive electrodes were prepared by chemical electroless method. The films cycled in K +-based electrolyte revealed typical red-ox peaks with higher intensity compared to those in the Li + and the Na +-based electrolytes. The durability of the cuprous oxide due to cycling into LiClO 4 was about 60 cycles. The thermal treatment of the films invoked decrease in red-ox peak intensity, and thus deterioration in the electrochromic properties. The response time of the coloration and bleaching to an abrupt voltage change from −4.5 to +4.5 V and reverse was found to be in the range of about 10 s. The maximum light intensity modulation ability of the films, as the AM1.5 spectrum is taken for an input, was calculated to be about 65%.
ISSN:0927-0248
1879-3398
DOI:10.1016/j.solmat.2007.05.018