Title :
Development of thin-film solar cells using solar spectrum splitting technique
Author :
Kim, Sinae ; Takahashi, Fuminori ; Kasashima, Shunsuke ; Sichanugrist, Porponth ; Kobayashi, T. ; Nakada, T. ; Konagai, M.
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
To increase the performance of thin-film solar cells, solar spectrum splitting technique has been considered and studied. It was found from the simulation that the total efficiency of nearly 25% can be obtained at the splitting wavelength of 600 nm with top cell using higher band gap material. The experiment has been carried out to verify the simulation results. Up to now the total efficiency of about 18.7 % has been obtained using a-Si:H and Cu(In1-x,Gax)Se2 as the top and bottom cells, respectively, at the splitting wavelength of 614 nm which is similar to the simulation results.
Keywords :
amorphous semiconductors; copper; hydrogen; indium compounds; selenium; semiconductor thin films; silicon; solar cells; Cu(In1-x-Gax)Se2; Si:H; higher band gap material; solar spectrum splitting technique; thin-film solar cells; wavelength 600 nm; wavelength 614 nm; wavelength splitting; Artificial intelligence; Educational institutions; Electrodes; Photovoltaic systems; CIGS; VHF-PECVD; amorphous silicon; photovoltaic; spectrum splitting;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-0064-3
DOI :
10.1109/PVSC.2012.6317819
