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Автор Nguyen, Dinh Hoang
Автор Nguyen, Ngoc Trung
Автор Pham, Duc Khue
Автор Nguyen, Thi Thanh Bao
Автор Phung, Viet Tiep
Автор Dao, Duy Thang
Автор Nguyen, Thanh Binh
Автор Vu, Thi Bich
Дата выпуска 2011-09-01
dc.description We present in this paper the influence of a synergistic radiation effect of both bremsstrahlung photons with maximum energy of 60 MeV and intense laser radiation (up to 60 KW cm<sup>−2</sup>) on the structural properties of carbon nanotubes (CNTs). The defect formation (damage) in CNTs under separate irradiations of 60 MeV bremsstrahlung photon or intense laser and their combined irradiations has been investigated by Raman spectroscopy. The experimental results show that (i) our obtained natural CNTs are multi-walled carbon nanotubes (MWCNTs) with a large number of structural defects, which are non-nanotube carbon impurities; (ii) the MWCNTs were not damaged by the irradiations of an intense laser and a bremsstrahlung photon beam with low electron fluency and the irradiation even leads to more purification/ordering; (iii) the reversible modification in non-irradiated and 60 MeV bremsstrahlung photon irradiated MWCNTs with variation of laser power density (LPD) have been received; (iv) the influence on the structural properties of MWCNTs induced by the combined irradiation was greater than the separate irradiation of a 60 MeV bremsstrahlung photon or intense laser radiation. The result also demonstrates that micro-Raman spectroscopy is a valuable, fast and non-destructive tool for the investigation of purification/ordering of CNTs.
Формат application.pdf
Издатель Institute of Physics Publishing
Копирайт 2011 Vietnam Academy of Science & Technology
Название The synergistic effect of bremsstrahlung photons and intense laser radiation on the structural properties of carbon nanotubes
Тип paper
DOI 10.1088/2043-6262/2/3/035010
Electronic ISSN 2043-6262
Print ISSN 2043-6254
Журнал Advances in Natural Sciences: Nanoscience and Nanotechnology
Том 2
Первая страница 35010
Последняя страница 35014
Аффилиация Nguyen, Dinh Hoang; Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh District, Hanoi, Vietnam
Аффилиация Nguyen, Ngoc Trung; Institute of Engineering Physics, Hanoi University of Technology, 1 Dai Co Viet, Hai Ba Trung District, Hanoi, Vietnam
Аффилиация Pham, Duc Khue; Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh District, Hanoi, Vietnam
Аффилиация Nguyen, Thi Thanh Bao; Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh District, Hanoi, Vietnam
Аффилиация Phung, Viet Tiep; Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh District, Hanoi, Vietnam
Аффилиация Dao, Duy Thang; Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh District, Hanoi, Vietnam
Аффилиация Nguyen, Thanh Binh; Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh District, Hanoi, Vietnam
Аффилиация Vu, Thi Bich; Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh District, Hanoi, Vietnam
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