Surface modification of semiconductor photoelectrodes

N Guijarro, MS Prévot, K Sivula - Physical Chemistry Chemical Physics, 2015 - pubs.rsc.org
Photoelectrochemical (PEC) cells have emerged as promising devices that afford the direct
conversion of solar energy into electric power and/or chemical fuels. Apart from the obvious …

Electronic structure and photoabsorption of Ti 3+ ions in reduced anatase and rutile TiO 2

B Wen, Q Hao, WJ Yin, L Zhang, Z Wang… - Physical Chemistry …, 2018 - pubs.rsc.org
We have used two-photon photoemission (2PPE) spectroscopy and first-principles density
functional theory calculations to investigate the electronic structure and photoabsorption of …

Hot electron-driven photocatalytic water splitting

B Hou, L Shen, H Shi, R Kapadia… - Physical Chemistry …, 2017 - pubs.rsc.org
We report measurements of photocatalytic water splitting using Au films with and without
TiO2 coatings. In these structures, a thin (3–10 nm) film of TiO2 is deposited using atomic …

Oxygen vacancies of anatase (101): extreme sensitivity to the density functional theory method

MA Haa, AN Alexandrova - Journal of chemical theory and …, 2016 - ACS Publications
We present a systematic investigation of the influence of theoretical parameters on the
characterization of surface and subsurface oxygen vacancies in anatase with the 101 facet …

Exploring the mechanism of a pure and amorphous black-blue TiO2: H thin film as a photoanode in water splitting

J Liang, N Wang, Q Zhang, B Liu, X Kong, C Wei… - Nano Energy, 2017 - Elsevier
The use of amorphous disordered surface layers on TiO 2 nanocrystals prepared by
hydrogenated post-treatment has been proven to be an effective approach for enhancing the …

The structural and electronic properties of reduced amorphous titania

NA Deskins, J Du, P Rao - Physical Chemistry Chemical Physics, 2017 - pubs.rsc.org
Crystalline titania has been extensively studied using experimental and theoretical tools.
Amorphous titania, however, has received less attention in the literature, despite its …

Disorder-induced electron and hole trapping in amorphous

D Mora-Fonz, M Kaviani, AL Shluger - Physical Review B, 2020 - APS
Thin films of amorphous (a)–TiO 2 are ubiquitous as photocatalysts, protective coatings,
photo-anodes, and in memory applications, where they are exposed to excess electrons and …

Microscopic Study of Atomic Layer Deposition of TiO2 on GaAs and Its Photocatalytic Application

J Qiu, G Zeng, MA Ha, B Hou, M Mecklenburg… - Chemistry of …, 2015 - ACS Publications
We report a microscopic study of p-GaAs/TiO2 heterojunctions using cross-sectional high
resolution transmission electron microscopy (HRTEM). The photocatalytic performance for …

Room-temperature dynamics of vanishing copper nanoparticles supported on silica

D Kim, N Becknell, Y Yu, P Yang - Nano letters, 2017 - ACS Publications
In heterogeneous catalysis, a nanoparticle (NP) system has immediate chemical
surroundings with which its interaction needs to be considered, as nanoparticles are …

Effect of UV irradiation on synthesis of Ag/amorphous TiO2 composites with photocatalytic hydrogen production

B Yuan, Z Luo, W Luan, L Cao, R Zhu - Journal of Materials Research, 2023 - Springer
TiO2 has the characteristics of low cost and good optical stability, but its light absorption
range is narrow and its electrons are easy to combine with. The addition of metal …