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Poly(N-vinyl-2-pyrrolidone)-capped platinum nanoclusters were deposited on indium tin oxide glass as a counterelectrode for dye-sensitized solar cells using a “two-step dip coating” process at room temperature. Compared to sputtered-Pt electrodes, an electrode produced by this technique exhibited ultralow Pt-loading at 4.89μg∕cm2 and an acceptable charge-transfer resistance of 5.66Ωcm2. Current-voltage characteristics of the DSSC at this stage stand at 0.66V on VOC, 10.5mA∕cm2 on ISC, 0.41 on fill factor, and 2.84% cell efficiency under AM1.5, 100mW∕cm2 illumination.
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Wei et al. (2006) studied this question.
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