We found that a flash motion of Ga droplets with Joule heating transformed an amorphous carbon pillar into multiwalled carbon nanotube. Flush discharge into the pillar quickly heated up Ga droplets, which originally incorporated in the pillar due to the fabrication technique with focused-ion-beam-induced chemical vapor deposition, inducing a flash motion of Ga toward negative electrode. Thus, the Ga droplets dug out a tunnel inside the pillar, simultaneously inducing a catalytic transformation into a multiwalled graphitic tube.
Inducing graphite tube transformation with liquid gallium and flash discharge
Also at: Fundamental and Environmental Research Laboratories, NEC Corporation, Tsukuba, Ibaraki 305-8501, Japan.
Jun-ichi Fujita, Toshinari Ichihashi, Shotaro Nakazawa, Satoshi Okada, Masahiko Ishida, Yukinori Ochiai, Takashi Kaito, Shinji Matsui; Inducing graphite tube transformation with liquid gallium and flash discharge. Appl. Phys. Lett. 20 February 2006; 88 (8): 083109. https://doi.org/10.1063/1.2178195
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