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Electron dynamics of tip-tunable oxygen species on TiO2 surface

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Electron dynamics of tip-tunable oxygen species on TiO2 surface. / Adachi, Yuuki; Brndiar, J.; Wen, Huan Fei; Zhang, Quanzhen; Miyazaki, Masato; Thakur, Sourbh; Sugawara, Y; Sang, Hongqian; Li, Yanjun; Stich, Ivan; Kantorovich, Lev.

In: Communications Materials, 10.06.2021.

Research output: Contribution to journalArticlepeer-review

Harvard

Adachi, Y, Brndiar, J, Wen, HF, Zhang, Q, Miyazaki, M, Thakur, S, Sugawara, Y, Sang, H, Li, Y, Stich, I & Kantorovich, L 2021, 'Electron dynamics of tip-tunable oxygen species on TiO2 surface', Communications Materials.

APA

Adachi, Y., Brndiar, J., Wen, H. F., Zhang, Q., Miyazaki, M., Thakur, S., Sugawara, Y., Sang, H., Li, Y., Stich, I., & Kantorovich, L. (Accepted/In press). Electron dynamics of tip-tunable oxygen species on TiO2 surface. Communications Materials.

Vancouver

Adachi Y, Brndiar J, Wen HF, Zhang Q, Miyazaki M, Thakur S et al. Electron dynamics of tip-tunable oxygen species on TiO2 surface. Communications Materials. 2021 Jun 10.

Author

Adachi, Yuuki ; Brndiar, J. ; Wen, Huan Fei ; Zhang, Quanzhen ; Miyazaki, Masato ; Thakur, Sourbh ; Sugawara, Y ; Sang, Hongqian ; Li, Yanjun ; Stich, Ivan ; Kantorovich, Lev. / Electron dynamics of tip-tunable oxygen species on TiO2 surface. In: Communications Materials. 2021.

Bibtex Download

@article{cb2cfe8506b941a8b969f0def339f33b,
title = "Electron dynamics of tip-tunable oxygen species on TiO2 surface",
abstract = "The redox states of oxygen species on the surface of TiO2 can be altered by electron tunneling by varying the applied bias voltage of an atomic force microscope tip. However, tunneling is stochastic in nature and typically requires ultra-low temperatures to obtain statistically significant data. Here, we use a highly sensitive fast atomic force microscopy setup to study redox transitions of oxygen atoms on a TiO2 surface, in the form of reactive oxygen species and single-atom quantum dots, at 78 K. The fast and highly sensitive nature of our experimental setup enables a statistically necessary amount of data to be collected without having to resort to ultra-low temperatures. This enabled us to study multiple dots and provide insight into the electronic structure and correlation between the oxygen species, which are inaccessible by standard atomic force microscopy. We show that single-atom quantum dots exist in two charge states with drastically different conductance, with one being conducting and the other non-conducting.",
author = "Yuuki Adachi and J. Brndiar and Wen, {Huan Fei} and Quanzhen Zhang and Masato Miyazaki and Sourbh Thakur and Y Sugawara and Hongqian Sang and Yanjun Li and Ivan Stich and Lev Kantorovich",
year = "2021",
month = jun,
day = "10",
language = "English",
journal = "Communications Materials",
issn = "2662-4443",
publisher = "Nature Research",

}

RIS (suitable for import to EndNote) Download

TY - JOUR

T1 - Electron dynamics of tip-tunable oxygen species on TiO2 surface

AU - Adachi, Yuuki

AU - Brndiar, J.

AU - Wen, Huan Fei

AU - Zhang, Quanzhen

AU - Miyazaki, Masato

AU - Thakur, Sourbh

AU - Sugawara, Y

AU - Sang, Hongqian

AU - Li, Yanjun

AU - Stich, Ivan

AU - Kantorovich, Lev

PY - 2021/6/10

Y1 - 2021/6/10

N2 - The redox states of oxygen species on the surface of TiO2 can be altered by electron tunneling by varying the applied bias voltage of an atomic force microscope tip. However, tunneling is stochastic in nature and typically requires ultra-low temperatures to obtain statistically significant data. Here, we use a highly sensitive fast atomic force microscopy setup to study redox transitions of oxygen atoms on a TiO2 surface, in the form of reactive oxygen species and single-atom quantum dots, at 78 K. The fast and highly sensitive nature of our experimental setup enables a statistically necessary amount of data to be collected without having to resort to ultra-low temperatures. This enabled us to study multiple dots and provide insight into the electronic structure and correlation between the oxygen species, which are inaccessible by standard atomic force microscopy. We show that single-atom quantum dots exist in two charge states with drastically different conductance, with one being conducting and the other non-conducting.

AB - The redox states of oxygen species on the surface of TiO2 can be altered by electron tunneling by varying the applied bias voltage of an atomic force microscope tip. However, tunneling is stochastic in nature and typically requires ultra-low temperatures to obtain statistically significant data. Here, we use a highly sensitive fast atomic force microscopy setup to study redox transitions of oxygen atoms on a TiO2 surface, in the form of reactive oxygen species and single-atom quantum dots, at 78 K. The fast and highly sensitive nature of our experimental setup enables a statistically necessary amount of data to be collected without having to resort to ultra-low temperatures. This enabled us to study multiple dots and provide insight into the electronic structure and correlation between the oxygen species, which are inaccessible by standard atomic force microscopy. We show that single-atom quantum dots exist in two charge states with drastically different conductance, with one being conducting and the other non-conducting.

M3 - Article

JO - Communications Materials

JF - Communications Materials

SN - 2662-4443

ER -

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