Kaoru Okaniwa
Hitachi
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Publication
Featured researches published by Kaoru Okaniwa.
photovoltaic specialists conference | 2011
Takeshi Yamashita; Taku Sawaki; Kaoru Okaniwa
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 (▵J<inf>sc</inf>). We confirmed that ▵J<inf>sc</inf> = 0.5 mA/cm<sup>2</sup> 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 (V<inf>oc</inf>), not only in increases in ▵J<inf>sc</inf> were also confirmed for the WCF modules. We also conducted the evaluations and obtained ▵J<inf>sc</inf> =0.63 mA/cm<sup>2</sup> for WCF using a newly designed Eu complex.
Archive | 2007
Takehiro Shimizu; Kaoru Okaniwa; Naoki Fukushima
Archive | 2007
Takehiro Shimizu; Kaoru Okaniwa; Naoki Fukushima
Archive | 2007
Takehiro Shimizu; Kaoru Okaniwa; Naoki Fukushima
Optical Materials | 2009
Takeshi Fukuda; Sayaka Kato; Eimo Kin; Kaoru Okaniwa; Hiroaki Morikawa; Zentaro Honda; Norihiko Kamata
Archive | 2011
Kaoru Okaniwa; Takeshi Yamashita; Taku Sawaki
Archive | 2011
Mitsunori Iwamuro; 光則 岩室; Masato Yoshida; 誠人 吉田; Takeshi Nojiri; 剛 野尻; Yoichi Machii; 洋一 町井; Kaoru Okaniwa; 香 岡庭; Shuichiro Adachi; 修一郎 足立; Keiko Kizawa; 桂子 木沢; Tetsuya Sato; 鉄也 佐藤
Archive | 2008
Kaoru Okaniwa
Archive | 2009
Kaoru Okaniwa; 香 岡庭; Norihiko Kamata; 憲彦 鎌田; Takeshi Fukuda; 福田 武司; Eimo Kin; 永模 金
Archive | 2012
Kaoru Okaniwa
