Reactive Oxidation Induced Stoichiometric Modulation of Multivalent Vanadium Oxides-Reference-Cited by-同舟云学术

Reactive Oxidation Induced Stoichiometric Modulation of Multivalent Vanadium Oxides

Published:2024-02-10 Issue:4 Volume:4 Page:
ISSN:2688-4046
Container-title:Small Science
language:en
Short-container-title:Small Science

Author:

Song Sehwan¹²,Lee Dooyong¹³,Son Yeongjun¹,Choi Yesul¹,Kim Jiwoong¹⁴,Han Seonghoon¹,Lee Jisung¹⁵,Kim Seokjun⁶,Jeong Seung Gyo⁷,Lim Si‐Heon⁸,Yan Jiafeng⁹,Kim Songkil⁶,Choi Woo Seok⁷,Kim Hyun Ho⁸,Kim Jaeyong⁹,Bae Jong‐Seong¹⁰,Takesue Naoshia¹¹,Hwang Chanyong²,Park Sungkyun¹^ORCID

Affiliation:

1. Department of Physics Pusan National University Busan 46241 Korea

2. Quantum Spin Team Korea Research Institute of Standards & Science Daejeon 34113 Korea

3. Department of Physics Education Kyungpook National University Daegu 41566 Korea

4. Applied Materials Hwaseong 18469 Korea

5. Center for Scientific Instrumentation Korea Basic Science Institute Daejeon 34133 Korea

6. School of Mechanical Engineering Pusan National University Busan 46241 Korea

7. Department of Physics Sungkyunkwan University Suwon 16419 Korea

8. Department of Energy Engineering Convergence & School of Materials Science and Engineering Kumoh National Institute of Technology Gumi 39177 Korea

9. Department of Physics and Institute for High Pressure Hanyang University Seoul 04763 Korea

10. Busan Center Korea Basic Science Institute Busan 46742 Korea

11. Department of Applied Physics Fukuoka University Fukuoka 814‐0180 Japan

Abstract

Vanadium oxides, such as V2O3, VO2, and V2O5, have attracted considerable attention because of the fascinating physical properties of each oxidation state. On the other hand, precisely controlling the individual oxidation states is difficult due to the sensitivity of oxygen stoichiometry. This article reports that reactive oxygen annealing (ROA) can systematically change the oxidation state of the vanadium oxide films grown on a c‐Al2O3 substrate compared with typical annealing under O2 environments. Chemical, structural, electronic, and electrical analysis confirms the evolution of the vanadium oxide phases from V2O3 to V2O3/VO2, VO2, VO2/V2O5, and V2O5, showing that the ROA method can control and tune the oxidation state of the highly oxygen‐sensitive multivalent metal oxides.

Funder

Ministry of Education

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/smsc.202300171

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