Over the last 30 years dye-sensitized solar cells have received considerable interest due to their low-cost, environmental sustainability, flexibility, and an abundant number of other practical applications. Flexible carbon nanotube-yarn based photo voltaic cells have shown considerable advantages over metal wires and non-flexible substrates using fluorine-doped tin oxide as their foundation. Carbon nanotubes are superior in photo voltaic cells due to their lower electrical resistance, excellent electrocatalytic activity, and high mechanical integrity. Here, we introduce the use of poly(3-hexylthiophene-2,5-diyl), [6.6] diphenyl C<sub>62</sub> bis(butyric acid methyl ester), cadmium sulfide-cadmium selenide quantum dots, and ruthenium-based dye N719 to locally increase electron generation, decrease electron-hole pair recombination, as well as enhancing barrier characteristics. Our prototype 3-dimensional photovoltaic cells show an enhancement in photon to energy conversion efficiency (&gt;6.5%) together with prolonged environmental stability.

Dye-sensitized photovoltaic cells with enhanced exciton-hole separation and barrier characteristics

251st National Meeting (2016)

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