DocumentCode :
1859850
Title :
Wavelength conversion film (WCF) for crystalline silicon PV modules
Author :
Yamashita, Takeshi ; Sawaki, Taku ; Okaniwa, Kaoru
Author_Institution :
Tsukuba Res. Lab., Hitachi Chem. Co., Ltd., Tsukuba, Japan
fYear :
2011
fDate :
19-24 June 2011
Abstract :
We describe wavelength conversion film (WCF) specially designed for improving efficiency in crystalline silicon photovoltaic (c-Si PV) modules, which use the ultraviolet region of the sunlight spectra for use in Europium (Eu) complexes as photoluminescence (PL) materials. We developed methodologies for dispersing PL materials and evaluated the effects of WCF with regards to the differences in short circuit current densities between the cells and modules (ΔJsc). We confirmed that ΔJsc = 0.5 mA/cm2 in an in-house testing with an artificial light source (solar simulator). In a field test with commercially available encapsulant, increases in the open circuit voltage (Voc), not only in increases in ΔJsc were also confirmed for the WCF modules. We also conducted the evaluations and obtained ΔJsc =0.63 mA/cm2 for WCF using a newly designed Eu complex.
Keywords :
elemental semiconductors; optical films; optical wavelength conversion; photoluminescence; silicon; solar absorber-convertors; solar cells; ultraviolet spectra; Si; artificial light source; crystalline silicon PV modules; crystalline silicon photovoltaic module; photoluminescence material; short circuit current; solar simulator; sunlight spectra; ultraviolet region; wavelength conversion film; Erbium; Heating; Humidity; Silicon; Thermal stability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE
Conference_Location :
Seattle, WA
ISSN :
0160-8371
Print_ISBN :
978-1-4244-9966-3
Type :
conf
DOI :
10.1109/PVSC.2011.6186110
Filename :
6186110
Link To Document :
بازگشت