Hybrid bulk heterojunction solar cells from a blend of poly(3-hexylthiophene) and TiO2 nanotubes

Hybrid bulk heterojunction solar cells based on blend of poly(3-hexylthiophene) (P3HT) and TiO2 nanotubes or dye(N719) modified TiO2 nanotubes were processed from solution and characterized to research the nature of organic/inorganic hybrid materials. Compared with the pristine polymer P3HT and TiO2 nanoparticles/P3HT solar cells, the TiO2 nanotubes/P3HT hybrid solar cells show obvious performance improvement, due to the formation of the bulk heterojunction and charge transport improvement. A further improvement in the device performance can be achieved by modifying TiO2 nanotube surface with a standard dye N719 which can play a role in the improvement of both the light absorption and charge dissociation. Compared with the non-modified TiO2 nanotubes solar cells, the modified ones have better power conversion efficiency under 100 mW/cm(2) illumination with 500W Xenon lamp. (C) 2008 Elsevier B. V. All rights reserved.

Hybrid bulk heterojunction solar cells based on blend of poly(3-hexylthiophene) (P3HT) and TiO2 nanotubes or dye(N719) modified TiO2 nanotubes were processed from solution and characterized to research the nature of organic/inorganic hybrid materials. Compared with the pristine polymer P3HT and TiO2 nanoparticles/P3HT solar cells, the TiO2 nanotubes/P3HT hybrid solar cells show obvious performance improvement, due to the formation of the bulk heterojunction and charge transport improvement. A further improvement in the device performance can be achieved by modifying TiO2 nanotube surface with a standard dye N719 which can play a role in the improvement of both the light absorption and charge dissociation. Compared with the non-modified TiO2 nanotubes solar cells, the modified ones have better power conversion efficiency under 100 mW/cm(2) illumination with 500W Xenon lamp. (C) 2008 Elsevier B. V. All rights reserved.

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National Natural Science Foundation of China 60736034 60576036National Basic Research Programme of China 2006CB202604 2006CB604904 National High Technology Research and Development Program of China 2006AA03Z408 This work is supported by the National Natural Science Foundation of China with Contract Nos. 60736034 and 60576036, the National Basic Research Programme of China with Contract Nos. 2006CB202604 and 2006CB604904, and the National High Technology Research and Development Program of China with Contract Nos. 2006AA03Z408.

[Wang, Z. J.; Qu, S. C.; Zeng, X. B.; Zhang, C. S.; Tan, F. R.; Jin, L.; Wang, Z. G.] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China; [Liu, J. P.] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

National Natural Science Foundation of China 60736034 60576036National Basic Research Programme of China 2006CB202604 2006CB604904 National High Technology Research and Development Program of China 2006AA03Z408 This work is supported by the National Natural Science Foundation of China with Contract Nos. 60736034 and 60576036, the National Basic Research Programme of China with Contract Nos. 2006CB202604 and 2006CB604904, and the National High Technology Research and Development Program of China with Contract Nos. 2006AA03Z408.