2012
DOI: 10.1016/j.cap.2011.10.011
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The effect of TiCl4-treated TiO2 compact layer on the performance of dye-sensitized solar cell

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Cited by 151 publications
(78 citation statements)
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“…In contrast, those parameters for the DSSC without ZnO decoration are 0.37 mA/cm 2 , 0.66 V, and 0.15%, respectively. The improved photovoltaic performance of DSSCs can be attributed to the following facts: (i) an energy barrier is formed at the TiO 2 /electrolyte interface to reduce the electron back recombination [3,4,[6][7][8][9][10]; (ii) the longer ZnO nanorods provide larger surface area for more dye adsorption; and (iii) the lower defect density in longer ZnO nanorods favors more efficient electron transport in the nanorods. More specifically, the enhancement in SC can be attributed to the larger surface area and the lower defect density in longer ZnO nanorods whilst the slight decrease in OC can be caused by the larger serial resistance in the longer ZnO nanorods.…”
Section: Resultsmentioning
confidence: 99%
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“…In contrast, those parameters for the DSSC without ZnO decoration are 0.37 mA/cm 2 , 0.66 V, and 0.15%, respectively. The improved photovoltaic performance of DSSCs can be attributed to the following facts: (i) an energy barrier is formed at the TiO 2 /electrolyte interface to reduce the electron back recombination [3,4,[6][7][8][9][10]; (ii) the longer ZnO nanorods provide larger surface area for more dye adsorption; and (iii) the lower defect density in longer ZnO nanorods favors more efficient electron transport in the nanorods. More specifically, the enhancement in SC can be attributed to the larger surface area and the lower defect density in longer ZnO nanorods whilst the slight decrease in OC can be caused by the larger serial resistance in the longer ZnO nanorods.…”
Section: Resultsmentioning
confidence: 99%
“…A typical DSSC consists of a photoanode containing the wide bandgap semiconductor TiO 2 , a Pt counter electrode, and a liquid electrolyte containing the I − /I 3 − redox couple. Under illumination, the dye molecules adsorbed on TiO 2 are excited to their lowest unoccupied molecule orbitals with the result of released photoelectrons, and then the released photoelectrons are injected into the wide bandgap semiconductor TiO 2 [6][7][8][9]. Consequently the interface between TiO 2 and the electrolyte becomes critically important in improving the power conversion efficiency of the TiO 2 based DSSCs [6][7][8][9][10][11].…”
Section: Introductionmentioning
confidence: 99%
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“…In the cases of SWCNT and hybrid (SWCNT-graphene) based quasi-solid state electrolytes, improved DSSC performance is observed with electrode C ( (Choi et al, 2012). The overlayer results in more dye being adsorbed onto the oxide surface and a shift in the conduction band edge of the TiO 2 increasing the quantum efficiency of charge separation at the interface, thus causing an increase in photocurrent (Choi et al, 2012;O'Regan et al, 2007;Sommeling et al, 2006).…”
Section: Working Electrode (We) Optimisationmentioning
confidence: 96%
“…The overlayer results in more dye being adsorbed onto the oxide surface and a shift in the conduction band edge of the TiO 2 increasing the quantum efficiency of charge separation at the interface, thus causing an increase in photocurrent (Choi et al, 2012;O'Regan et al, 2007;Sommeling et al, 2006). indicating that the hybrid has higher conductivity.…”
Section: Working Electrode (We) Optimisationmentioning
confidence: 99%