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Updated: Jan 26, 2026
11:10
Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
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Nitrogen Boosts Defective Vanadium Oxide from Semiconducting to Metallic Merit
Zhongyuan Ma1, Kun Rui1, Yao Zhang1
1Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.
Small (Weinheim an Der Bergstrasse, Germany)
|April 9, 2019
Summary
Researchers developed a new method to create nitrogen-doped 2D vanadium oxide nanosheets. This metallic material shows enhanced electrochemical performance, paving the way for advanced energy and electronics applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- 2D metal oxide nanosheets offer unique properties for various applications.
- Scalable fabrication of metallic 2D metal oxides with high nitrogen (N) doping remains a significant challenge.
Purpose of the Study:
- To develop an effective topochemical strategy for fabricating N-doped 2D vanadium oxide nanosheets.
- To modulate the electronic structure and enhance the electrochemical properties of vanadium oxide nanosheets.
Main Methods:
- Utilized a topochemical strategy combining 2D nanostructuring, heteroatom doping, and defect engineering.
- In situ formation of oxygen vacancies and N dopants (V-O-N and V-N bonds) via nitridation.
- Experimental characterization and theoretical calculations to confirm phase transformation.
Main Results:
- Achieved in situ formation of oxygen vacancies and N dopants in vanadium oxide nanosheets.
- Demonstrated a semiconductive-to-metallic phase transformation.
- The resulting N-doped vanadium oxide (N-VO0.9) nanosheets exhibited metallic electron transport and superior electrochemical performance.
Conclusions:
- The developed topochemical strategy enables the scalable fabrication of N-doped 2D vanadium oxide nanosheets.
- The N doping and oxygen vacancies effectively tune the electronic structure, leading to metallic behavior.
- These findings provide insights for designing 2D nanostructures with tailored electronic properties for energy and electronics.
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