Three-dimensional hot electron photovoltaic device with vertically aligned TiO₂ nanotubes.

ABSTRACT: Titanium dioxide (TiO₂) nanotubes with vertically aligned array structures show substantial advantages in solar cells as an electron transport material that offers a large surface area where charges travel linearly along the nanotubes. Integrating this one-dimensional semiconductor material with plasmonic metals to create a three-dimensional plasmonic nanodiode can influence solar energy conversion by utilizing the generated hot electrons. Here, we devised plasmonic Au/TiO₂ and Ag/TiO₂ nanodiode architectures composed of TiO₂ nanotube arrays for enhanced photon absorption, and for the subsequent generation and capture of hot carriers. The photocurrents and incident photon to current conversion efficiencies (IPCE) were obtained as a function of ph

SUBMITTER: Goddeti KC 

PROVIDER: S-EPMC5943325 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature