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- W2118841864 abstract "Photovoltaic performances are critically dependent on efficient photoexcited charge carrier generation. Vanadium ions are introduced into titanium dioxide (TiO2) as a photocatalyst to tailor the energy level alignment of TiO2 and the conjugated polymer poly(3-hexylthiophene) (P3HT). Incorporation of vanadium ions into TiO2 yields a remarkable decrease of the energy offset between the conduction band edge of TiO2 and the lowest unoccupied molecular orbital of P3HT. The reduction of the ‘excess’ energy offset leads to a faster electron transfer at the interface of the bulk heterojunction with the lifetime decreasing from 30.2 to 19.7 ps, thus giving rise to a notable enhancement of the photovoltaic performance. That is, a power conversion efficiency of 3.01% for the vanadium-doped TiO2/P3HT solar cell at 5.0 wt% vanadium-doping is obtained as compared to 2.00% for pure TiO2." @default.
- W2118841864 created "2016-06-24" @default.
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- W2118841864 date "2014-09-12" @default.
- W2118841864 modified "2023-10-11" @default.
- W2118841864 title "Efficiency enhancement via tailoring energy level alignment induced by vanadium ion doping in organic/inorganic hybrid solar cells" @default.
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- W2118841864 doi "https://doi.org/10.1039/c4ra08671f" @default.
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