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A viable way to tailor carbon nanomaterials by irradiation-induced transformations |
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| Authors: | R. Caudillo H.E. Troiani M. Miki-Yoshida M.A.L. Marques A. Rubio M.J. Yacaman |
| Affiliation: | aThe Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712, USA bCentro Atómico Bariloche and Instituto Balseiro, CNEA and UNC, 8400 Bariloche, Rio Negro, Argentina cCentro de Investigacion en Materiales Avanzados, Miguel de Cervantes 120, Chihuahua, Chih., CP 31109, Mexico dDpto. de Física de Materiales, Facultad de Química, Universidad del País Vasco, Centro Mixto CSIC/UPV, and Donostia International Physics Center, Paseo Manuel Lardizábal 4, 20018 San Sebastián, Spain eDepartment of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, USA |
| Abstract: | Since the discovery of carbon nanotubes (CNT), transmission electron microscopy (TEM) has been the most important tool in their investigation. It is possible to use electron irradiation in a TEM to construct a single-walled carbon nanotube (SWCNT) from an amorphous carbon film. Here we show that such a synthesis method creates a large number of carbon ad-atoms, which after some critical amount of radiation act to restore the system by reconstructing the carbon film. The behavior of the ad-atoms can be controlled by adjusting the current density in the microscope, suggesting that carbon nanomaterials can be tailored by electron irradiation. |
| Keywords: | Carbon nanotubes Electron irradiation Nanomaterials Transmission electron microscopy |
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