Title :
Anti-soiling layer coarted on PMMA Fresnel lens for concentrator photovoltaic modules
Author :
Nishioka, Kensuke ; Nabemoto, Kenji ; Sakurada, Yuya ; Ota, Yasuyuki ; Takami, Kazuyuki ; Nagai, Hirokazu ; Araki, Kenji
Author_Institution :
Univ. of Miyazaki, Miyazaki, Japan
Abstract :
An anti-soiling layer was coated on the PMMA substrates. The anti-soiling layer was prepared by coating the inorganic/organic nano-graded intermediate layer (Ube-Nitto Kasei Co., Ltd.) and photocatalytic surface layer including modified WO3 (ILUMIO®, Sumitomo Chemical Co., Ltd.) and partial hydrolyzed tetraethylorthosilicate (Wako Pure Chemical Industries, Ltd.). After 6 months, the reduction rate of photocurrent without anti-soiling coat was 7.5%. On the other hand, that with anti-soiling coat could be suppressed to 3%. The experimental environment of the exposure site is clean, and there is a lot of rainfall. It is considered that the effect of the anti-soiling coat must be more significant if CPV systems are installed in dusty areas.
Keywords :
antireflection coatings; lenses; nanostructured materials; polymers; solar cells; solar energy concentrators; CPV systems; PMMA Fresnel lens; PMMA substrates; antisoiling layer coating; concentrator photovoltaic modules; inorganic-organic nanograded intermediate layer; partial hydrolyzed tetraethylorthosilicate; photocatalytic surface layer; photocurrent reduction rate; polymethylmethacrylate; time 6 month; Lenses; Optical sensors; Optical surface waves; Photoconductivity; Photovoltaic cells; Substrates; Surface treatment;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-9966-3
DOI :
10.1109/PVSC.2011.6186654