Influence of laser structuring and barium nitrate treatment on morphology and electrophysical characteristics of vertically aligned carbon nanotube...
Gerasimenko A. Yu., Kitsyuk E. P., Kuksin A. V., Ryazanov R. M., Savitskiy A. I., Savelyev M. S., Pavlov A. A.
Diamond and Related Materials
Vol.96, P. 104-111
Опубликовано: 2019
Тип ресурса: Статья
DOI:10.1016/j.diamond.2019.04.035
Аннотация:
The technology of structuring arrays of multilayer carbon nanotubes using pulsed laser radiation is presented. Arrays of two types nanotubes (long and short)with different morphologies were synthesized on a silicon substrate by the method of plasma enhanced chemical vapor deposition from the gas phase. Samples with arrays of nanotubes located strictly perpendicular to the silicon substrate were obtained using an ytterbium fiber laser (1064 nm)with a galvanometric scanner. Raman spectroscopy showed a decrease in the defectiveness of the carbon nanostructure of the tubes after laser irradiation. Liquid treatment with Ba(NO3)2 applied to the array with subsequent annealing resulted in sticking of the nanotubes at their tips. The formation of cellular structure from array of carbon nanotubes with a greater length after laser scanning of the sample was observed. Such arrays of nanotubes made it possible to increase the current of electron emission by more than two times at lower threshold v
Ключевые слова:
Barium nitrate; Carbon nanotube arrays; Cathodes; Electron field emission; Laser irradiation; Modification; Morphology; Nanosecond pulses; Structuring; Vertically aligned
Barium compounds; Carbon nanotubes; Cathodes; Electron emission; Fiber lasers; Field emission cathodes; Field emission displays; Irradiation; Laser beam effects; MEMS; Morphology; Nitrates; Plasma CVD; Plasma enhanced chemical vapor deposition; Substrates; Threshold voltage; Yarn; Barium nitrates; Carbon nanotube array; Electron field emission; Modification; Nanosecond pulse; Structuring; Vertically aligned; Pulsed lasers
Язык текста: Английский
ISSN: 1879-0062
Gerasimenko A. Yu. Aleksandr Yuryevich 1983-
Kitsyuk E. P.
Kuksin A. V.
Ryazanov R. M.
Savitskiy A. I.
Savelyev M. S. Mikhail Sergeevich 1988-
Pavlov A. A.
Герасименко А. Ю. Александр Юрьевич 1983-
Кицюк Е. П.
Куксин А. В.
Рязанов Р. М.
Савицкиy А. И.
Савельев М. С. Михаил Сергеевич 1988-
Павлов А. А.
Influence of laser structuring and barium nitrate treatment on morphology and electrophysical characteristics of vertically aligned carbon nanotube arrays
Influence of laser structuring and barium nitrate treatment on morphology and electrophysical characteristics of vertically aligned carbon nanotube...
Текст визуальный непосредственный
Diamond and Related Materials
Elsevier Science Publisher B.V.
Vol.96 P. 104-111
2019
Статья
Barium nitrate Carbon nanotube arrays Cathodes Electron field emission Laser irradiation Modification Morphology Nanosecond pulses Structuring Vertically aligned
Barium compounds Carbon nanotubes Cathodes Electron emission Fiber lasers Field emission cathodes Field emission displays Irradiation Laser beam effects MEMS Morphology Nitrates Plasma CVD Plasma enhanced chemical vapor deposition Substrates Threshold voltage Yarn Barium nitrates Carbon nanotube array Electron field emission Modification Nanosecond pulse Structuring Vertically aligned Pulsed lasers
The technology of structuring arrays of multilayer carbon nanotubes using pulsed laser radiation is presented. Arrays of two types nanotubes (long and short)with different morphologies were synthesized on a silicon substrate by the method of plasma enhanced chemical vapor deposition from the gas phase. Samples with arrays of nanotubes located strictly perpendicular to the silicon substrate were obtained using an ytterbium fiber laser (1064 nm)with a galvanometric scanner. Raman spectroscopy showed a decrease in the defectiveness of the carbon nanostructure of the tubes after laser irradiation. Liquid treatment with Ba(NO3)2 applied to the array with subsequent annealing resulted in sticking of the nanotubes at their tips. The formation of cellular structure from array of carbon nanotubes with a greater length after laser scanning of the sample was observed. Such arrays of nanotubes made it possible to increase the current of electron emission by more than two times at lower threshold v