Field emission from single-walled carbon nanotubes modified by annealing and CuCl doping

Kleshch, V.I.; Tonkikh, A.A.; Malykhin, S.A.; Redekop, E.V.; Orekhov, A.S.; Chuvilin, A.L.; Obraztsova, E.D.; Obraztsov, A.N.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 30 декабря 2016 г.

Авторы: Kleshch Victor I., Tonkikh Alexander A., Malykhin Sergey A., Redekop Eugene V., Orekhov Andrey S., Chuvilin Andrey L., Obraztsova Elena D., Obraztsov Alexander N.
Журнал: Applied Physics Letters
Том: 109
Год издания: 2016
Издательство: AIP Publishing
Местоположение издательства: United States
Первая страница: 143112
DOI: 10.1063/1.4964273
Аннотация: In this article, we present a comparative study of field emission (FE) properties of the films of pristine, annealed and CuCl-filled single-walled carbon nanotubes (SWCNTs). The current-voltage dependencies and emission site distributions were measured in the diode configuration with a flat phosphor-coated anode. A significant increase of the threshold field was observed after annealing and doping of the films. It was explained by the selective oxidation of the small-diameter nanotubes confirmed by the Raman spectroscopy. The FE properties of annealed and filled SWCNTs were found to coincide with each other. At the same time, their Raman spectra differ significantly indicating the strong p-type doping induced by encapsulated CuCl. The obtained result reveals that the CuCl filling leads to significant changes in macroscopically averaged electronic properties but do not change the local work function at the apexes of emitting nanotubes, which is important for the further development of SWCNTs-based FE cathodes.
Добавил в систему: Образцов Александр Николаевич

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Field emission from single-walled carbon nanotubes modified by annealing and CuCl dopingстатья

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