prof.dr. Jih-Jen Wu : Oxide nanoarchitectures for solar energy conversion

ABSTRACT

Formation of hierarchical ZnO and TiO₂ nanostructures by solution processes for solar energy conversion will be reported in this presentation. ZnO nanoarchitectures, which are developed from the nanostructured templates using the room-temperature chemical vapor deposition, exhibit promising characteristics to be the anodes of flexible dye-sensitized solar cells with plastic substrates. Moreover, an oxide nanoarchitectural hybrid polymer solar cell, combing the features of the ordered and the bulk hereojunction hybrid polymer solar cells, demonstrates an efficient electron transport pathway coupling of the 3D quasi-single crystalline ZnO network and the TiO₂ nanorod array. With the individual addition of plasmonic Au@silica nanoparticles and reduced graphene oxides, the photovoltaic performances of the oxide nanoarchitectural hybrid polymer solar cells are further improved due to the enhancement of the charge separation.