Enhanced charge transfer activity in Au nanoparticles decorated ZnO nanorods photoanode
By Iwantono, Iwantono; Saad, Siti Khatijah Md; Anggelina, Fera; Awitdrus, Awitdrus; Ramli, Muhamad Adam; Umar, Akrajas Ali
Published in Physica E: Low-dimensional Systems and Nanostructures
2019
Abstract
Charge-transfer and photoactivity at an interface of a photoactive materials, such as ZnO, is critically influence the performance of dye-sensitized solar cell (DSSCs). The performance of DSSCs utilizing Au decorated ZnO nanorod photoanode with Au nanoparticles grown at seven different growth times from 0.12 up to 6 min were studied. It was found that the charge transfer characteristic of DSSCs devices utilizing Au decorated ZnO nanorods increased with the increasing of Au nanoparticles size and density and optimum at Au nanoparticles size of ca. 15 nm and density of approximately 4
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