Particle Consolidation and Electron Transport in Anatase TiO₂ Nanocrystal Films.

ABSTRACT: A sequence of chemical vapor synthesis and thermal annealing in defined gas atmospheres was used to prepare phase-pure anatase TiO₂ nanocrystal powders featuring clean surfaces and a narrow particle size distribution with a median particle diameter of 14.5 ± 0.5 nm. Random networks of these nanocrystals were immobilized from aqueous dispersions onto conducting substrates and are introduced as model systems for electronic conductivity studies. Thermal annealing of the immobilized films at 100 °C < T < 450 °C in air was performed to generate particle-particle contacts upon virtual preservation of the structural properties of the nanoparticle films. The distribution of electrochemically active electronic states as well as the dependence of the electronic conductivity on the

SUBMITTER: Rettenmaier K 

PROVIDER: S-EPMC7116033 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature