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Hydrazine nitridation of oxidized or non-oxidized twisted multilayer grapheneстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 октября 2025 г.
- Авторы: Mitiushev Nikita D., Kononenko Oleg V., Zotov Alexander V., Firsov Anatoliy A., Kabachkov Evgeny N., Matveev Victor N., Baranov Andrei N.
- Журнал: Diamond and Related Materials
- Том: 159
- Год издания: 2025
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 112881
- DOI: 10.1016/j.diamond.2025.112881
- Аннотация: Twisted multilayer graphene films were synthesized using chemical vapor deposition. The films were treated in oxygen plasma and reduced with hydrazine in the vapor phase to replace inserted oxygen groups with nitrogen ones. Some of the films were treated by hydrazine without preliminary oxidation. The processes of graphene oxidation, reduction and nitridation were characterized using scanning electron microscopy and Raman spectroscopy. Changes in the chemical composition after nitriding of synthesized or oxidized graphene were determined using x-ray photoelectron spectroscopy (XPS). Electrical transport properties of the multilayer graphene films were measured using the Hall and magnetoresistive effect. It was found that pre-oxidation of the film before nitridization makes it possible to increase the amount of graphitized nitrogen, which is a strong donor impurity, by 1.5 times. This leads to a decrease in the concentration of positively charged carriers by more than two times and an increase in the film resistance by more than three times.
- Добавил в систему: Баранов Андрей Николаевич
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