Earth abundant dyes for DSSC PDF
Preview Earth abundant dyes for DSSC
TiO -Based Photovoltaics: The Grätzel Cell 2 • introduced by O‘Regan and TiO particle counterelectrode 2 Gratzel in 1991 e- injection • extended previously known (S+/S*) concept of semiconductor hν ΔV sensitization e- e- e- (R/R-) (S+/S) e- • inexpensive and easy to manufacture e- e- load • highest overall conversion TiO efficiency currently reported 2 O is ca. 12% chromophore shifts O N N NCS energy required for Ru N NCS photoconduction O N into visible O O’Regan, B.; Gratzel, M. Nature 1991, 335, 737 Saturday, January 19, 13 TiO -Based Photovoltaics: The Grätzel Cell 2 • introduced by O‘Regan and TiO particle counterelectrode 2 Gratzel in 1991 e- injection • extended previously known (S+/S*) concept of semiconductor hν ΔV sensitization e- e- e- (R/R-) (S+/S) e- • inexpensive and easy to manufacture e- e- load • highest overall conversion TiO efficiency currently reported 2 O is ca. 12% chromophore shifts O N N NCS energy required for Ru • broad-based utility tied to N NCS photoconduction O N into visible cost reductions, significant O improvements in overall efficiency, and scalability O’Regan, B.; Gratzel, M. Nature 1991, 335, 737 Saturday, January 19, 13 First-row Sensitizers Saturday, January 19, 13 First-row Sensitizers • Potential benefits: substantial reduction in cost (particularly for multi- component cells) expands palette of possible chromophores scalable Saturday, January 19, 13 First-row Sensitizers • Potential benefits: substantial reduction in cost (particularly for multi- component cells) expands palette of possible chromophores scalable Saturday, January 19, 13 First-row Sensitizers • Potential benefits: substantial reduction in cost (particularly for multi- component cells) expands palette of possible chromophores scalable Saturday, January 19, 13 First-row Sensitizers • Potential benefits: substantial reduction in cost (particularly for multi- component cells) expands palette of possible chromophores scalable Saturday, January 19, 13 First-row Sensitizers • Potential benefits: substantial reduction in cost (particularly for multi- component cells) expands palette of possible chromophores scalable Saturday, January 19, 13 First-row Sensitizers • Potential benefits: substantial reduction in cost (particularly for multi- component cells) expands palette of possible chromophores scalable Saturday, January 19, 13 First-row Sensitizers • Potential benefits: substantial reduction in cost (particularly for multi- component cells) expands palette of possible chromophores scalable • Scientific issues: Saturday, January 19, 13
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