Self-trapped excitons in soft semiconductors

J Tan, D Li, J Zhu, N Han, Y Gong, Y Zhang - Nanoscale, 2022‏ - pubs.rsc.org
Self-trapped excitons (STEs) have attracted tremendous attention due to their intriguing
properties and potential optoelectronic applications. STEs are formed from the lattice …

Determination of electron and hole lifetimes of rutile and anatase TiO2 single crystals

Y Yamada, Y Kanemitsu - Applied Physics Letters, 2012‏ - pubs.aip.org
The dynamical behavior of photoexcited states of TiO 2 governs the activities of TiO 2-based
solar cells and photocatalysts. We determined the lifetimes of photoexcited electrons and …

Unveiling diverse coordination-defined electronic structures of reconstructed anatase TiO2(001)-(1 × 4) surface

X Ma, Y Shi, Z Cheng, X Liu, J Liu, Z Guo, X Cui… - Nature …, 2024‏ - nature.com
Transition metal oxides (TMOs) exhibit fascinating physicochemical properties, which
originate from the diverse coordination structures between the transition metal and oxygen …

Strongly bound excitons in anatase TiO2 single crystals and nanoparticles

E Baldini, L Chiodo, A Dominguez, M Palummo… - Nature …, 2017‏ - nature.com
Anatase TiO2 is among the most studied materials for light-energy conversion applications,
but the nature of its fundamental charge excitations is still unknown. Yet it is crucial to …

Ultrafast many-body bright–dark exciton transition in anatase TiO2

A Wang, X Jiang, Q Zheng, H Petek, J Zhao - Proceedings of the National …, 2023‏ - pnas.org
The momentum-forbidden dark excitons can have a pivotal role in quantum information
processing, Bose–Einstein condensation, and light-energy harvesting. Anatase TiO2 with an …

Femtosecond X-ray absorption study of electron localization in photoexcited anatase TiO2

FG Santomauro, A Lübcke, J Rittmann, E Baldini… - Scientific reports, 2015‏ - nature.com
Transition metal oxides are among the most promising solar materials, whose properties rely
on the generation, transport and trap** of charge carriers (electrons and holes). Identifying …

Engineering the intermediate band states in amorphous Ti 3+-doped TiO 2 for hybrid dye-sensitized solar cell applications

S Pan, X Liu, M Guo, S fung Yu, H Huang… - Journal of Materials …, 2015‏ - pubs.rsc.org
Ti3+-doped amorphous TiO2 nanoparticles (a-TiO2: Ti3+), which are an intermediate band
semiconductor, were fabricated by high intensity ultraviolet pulsed laser ablation in water …

Engineering two-dimensional electron gases at the (001) and (101) surfaces of anatase using light

TC Rödel, F Fortuna, F Bertran, M Gabay… - Physical Review B, 2015‏ - APS
We report the existence of metallic two-dimensional electron gases (2DEGs) at the (001)
and (101) surfaces of bulk-insulating TiO 2 anatase due to local chemical do** by oxygen …

Facile synthesis and photocatalytic properties of TiO2 nanoparticles supported on porous glass beads

C Shen, YJ Wang, JH Xu, GS Luo - Chemical engineering journal, 2012‏ - Elsevier
This paper presents a novel immobilization method for the preparation of highly dispersed
TiO2 nanoparticles supported on porous glass beads. The method involves an in situ ion …

Influence of electronic structure on visible light photocatalytic activity of nitrogen-doped TiO 2

D Kusano, M Emori, H Sakama - RSC Advances, 2017‏ - pubs.rsc.org
Nitrogen (N)-doped TiO2 thin films were synthesized by sol–gel methods from precursor
solutions with or without urea and post calcination in NH3 gas. Their structural and …