@article{1756e82515e241cba00fd5df9679dac9,
title = "A spatial homojunction of titanium vacancies decorated with oxygen vacancies in TiO2 and its directed charge transfer",
abstract = "The n-p homojunction design in semiconductors could enable directed charge transfer, which is promising but rarely reported. Herein, TiO2 with a spatial n-p homojunction has been designed by decorating TiO2 nanosheets with Ti vacancies around nanostructured TiO2 with O vacancies. 2D 1H TQ-SQ MAS NMR, EPR and XPS show the junction of titanium vacancies and oxygen vacancies at the interface. This spatial homojunction contributes to a significant enhancement in photoelectrochemical and photocatalytic performance, especially photocatalytic seawater splitting. Density functional theory calculations of the charge density reveal the directional n-p charge transfer path at the interface, which is proposed at the atomic-/nanoscale to clarify the generation of rational junctions. The spatial n-p homojunction provides a facile strategy for the design of high-performance semiconductors.",
author = "Wu, {Si Ming} and Wang, {Yi Tian} and Xiao, {Shi Tian} and Wang, {Li Ying} and Ge Tian and Chen, {Jiang Bo} and Liu, {Jia Wen} and Menny Shalom and Yang, {Xiao Yu}",
note = "Funding Information: This work was supported by a National Natural Science Foundation of China project (51861135313), the Sino-German Center COVID-19 Related Bilateral Collaborative Project (C-0046), the Shenzhen Science and Technology Program (JCYJ20210324142010029, GJHZ20210705143204014), the Guangdong Basic and Applied Basic Research Foundation (2022A1515010137, 2022A1515010504), the Guangdong Province International Scientific and Technological Cooperation Projects (2020A0505100036), the National 111 project (B20002) and PCSIRT (IRT_15R52). The authors would like to thank the Nanostructure Research Centre (NRC) for the S/TEM work. Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry.",
year = "2022",
month = aug,
day = "17",
doi = "10.1039/d2nr03877c",
language = "English",
volume = "14",
pages = "13373--13377",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "36",
}