Title :
Efficient Organic-Dye-Sensitized Nanocrystalline TiO2 Solar Cells
Author :
Hara, Kohjiro ; Wang, Zhong-Sheng ; Koumura, Nagatoshi ; Saito, Kazuyuki
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol., Ibaraki
Abstract :
We have developed dye-sensitized nanocrystalline TiO2 solar cells (DSSCs) based on organic-dye photosensitizers. DSSCs based on the organic dyes gave good performance of incident-photon-to-current conversion efficiencies in the range of 400 to 800 nm. Solar energy-to-electricity conversion efficiencies of up to 7.6% were obtained with DSSCs based on coumarin dyes (NKX-2677 and NKX-2883) under AM 1.5 G irradiation (100 mW cm-2). Our results strongly suggest that organic-dye photosensitizers can be successfully designed for use in DSSCs and demonstrate the promising performance of DSSCs based on organic dyes
Keywords :
dyes; nanostructured materials; solar cells; titanium compounds; DSSCs; NKX-2677; NKX-2883; TiO2; coumarin dyes; organic-dye photosensitizers; organic-dye-sensitized nanocrystalline solar cells; photon-current conversion; solar energy-electricity conversion; Decision support systems; Electrodes; Electromagnetic wave absorption; Electrons; Nanoscale devices; Nanotechnology; Photoconductivity; Photovoltaic cells; Spine; Substrates;
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.2006.279454
