Charge State Tristability of Oxygen Adatom on a Rutile TiO2(110)-(1 × 1) Surface Controlled by Atomic Force Microscopy

Yuuki Adachi; Huan Fei Wen; Quanzhen Zhang; Masato Miyazaki; Yasuhiro Sugawara; Ján Brndiar; Lev Kantorovich; Ivan Štich; Yan Jun Li

doi:10.1021/acs.jpcc.2c00347

Charge State Tristability of Oxygen Adatom on a Rutile TiO₂(110)-(1 × 1) Surface Controlled by Atomic Force Microscopy

Yuuki Adachi, Huan Fei Wen, Quanzhen Zhang, Masato Miyazaki, Yasuhiro Sugawara, Ján Brndiar, Lev Kantorovich, Ivan Štich, Yan Jun Li^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We show that a single oxygen adatom on a rutile TiO₂(110)-(1 × 1) surface is charge tristable, forming O_ad2^-, O_ad^-, and O_ad⁰, and that the charge states can be controlled with single-electron precision using atomic force microscopy and Kelvin probe force spectroscopy. The experimental results show that O_ad⁰is indeed the lowest redox state of the oxygen adatom and that O_ad⁺is not achievable. Our findings expand our understanding of the chemical nature of the oxygen adatom on metal oxide surfaces.

Original language	English
Pages (from-to)	5064-5069
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	126
Issue number	10
DOIs	https://doi.org/10.1021/acs.jpcc.2c00347
Publication status	Published - 17 Mar 2022
Externally published	Yes

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title = "Charge State Tristability of Oxygen Adatom on a Rutile TiO2(110)-(1 × 1) Surface Controlled by Atomic Force Microscopy",

abstract = "We show that a single oxygen adatom on a rutile TiO2(110)-(1 × 1) surface is charge tristable, forming Oad2-, Oad-, and Oad0, and that the charge states can be controlled with single-electron precision using atomic force microscopy and Kelvin probe force spectroscopy. The experimental results show that Oad0is indeed the lowest redox state of the oxygen adatom and that Oad+is not achievable. Our findings expand our understanding of the chemical nature of the oxygen adatom on metal oxide surfaces.",

author = "Yuuki Adachi and Wen, {Huan Fei} and Quanzhen Zhang and Masato Miyazaki and Yasuhiro Sugawara and J{\'a}n Brndiar and Lev Kantorovich and Ivan {\v S}tich and Li, {Yan Jun}",

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doi = "10.1021/acs.jpcc.2c00347",

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T1 - Charge State Tristability of Oxygen Adatom on a Rutile TiO2(110)-(1 × 1) Surface Controlled by Atomic Force Microscopy

AU - Adachi, Yuuki

AU - Wen, Huan Fei

AU - Zhang, Quanzhen

AU - Miyazaki, Masato

AU - Sugawara, Yasuhiro

AU - Brndiar, Ján

AU - Kantorovich, Lev

AU - Štich, Ivan

AU - Li, Yan Jun

PY - 2022/3/17

Y1 - 2022/3/17

N2 - We show that a single oxygen adatom on a rutile TiO2(110)-(1 × 1) surface is charge tristable, forming Oad2-, Oad-, and Oad0, and that the charge states can be controlled with single-electron precision using atomic force microscopy and Kelvin probe force spectroscopy. The experimental results show that Oad0is indeed the lowest redox state of the oxygen adatom and that Oad+is not achievable. Our findings expand our understanding of the chemical nature of the oxygen adatom on metal oxide surfaces.

AB - We show that a single oxygen adatom on a rutile TiO2(110)-(1 × 1) surface is charge tristable, forming Oad2-, Oad-, and Oad0, and that the charge states can be controlled with single-electron precision using atomic force microscopy and Kelvin probe force spectroscopy. The experimental results show that Oad0is indeed the lowest redox state of the oxygen adatom and that Oad+is not achievable. Our findings expand our understanding of the chemical nature of the oxygen adatom on metal oxide surfaces.

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U2 - 10.1021/acs.jpcc.2c00347

DO - 10.1021/acs.jpcc.2c00347

M3 - Article

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SN - 1932-7447

VL - 126

SP - 5064

EP - 5069

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 10

ER -

Charge State Tristability of Oxygen Adatom on a Rutile TiO₂(110)-(1 × 1) Surface Controlled by Atomic Force Microscopy

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