Title :
Dye-Sensitized Bulk Heterojunction Polymer Solar Cells
Author :
Yamanari, Toshihiro ; Hara, Kohjiro ; Taima, Tetsuya ; Sakai, Jun ; Saito, Kazuhiro
Author_Institution :
Res. Center for Photovoltaics, Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba
Abstract :
Organic solar cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-buteric acid methyl ester (PCBM) blend have been improved in their efficiencies and attracts most attention. The incident photon to converted electron (IPCE) spectra of P3HT:PCBM-blend solar cells reported so far range from UV to around 600 nm. Therefore, to utilize longer wavelengths (>600 nm) of sunlight is a potentially effective way to improve the performance. In the present study, we investigated dye-sensitizing effects of photosensitizing dyes to P3HT:PCBM-blend solar cells. We examined four kinds of dyes (cyanine, merocyanine, phthalocyanine and squarylium). The addition of squarylium caused an increase in the IPCE in the longer-wavelength region, while the addition of other dyes exhibited little increase
Keywords :
dyes; polymer blends; solar cells; P3HT; PCBM; [6,6]-phenyl-C61-buteric acid methyl ester; bulk heterojunction polymer solar cells; cyanine; dye-sensitized solar cells; dye-sensitizing effects; merocyanine; organic solar cells; photosensitizing dyes; phthalocyanine; poly(3-hexylthiophene); squarylium; Atmospheric measurements; Electrodes; Electrons; Ethanol; Heterojunctions; Ionization; Photovoltaic cells; Polymers; Substrates; Wavelength measurement;
Conference_Titel :
Photovoltaic Energy Conversion, Conference Record of the 2006 IEEE 4th World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
1-4244-0017-1
Electronic_ISBN :
1-4244-0017-1
DOI :
10.1109/WCPEC.2006.279434
