TY - JOUR
T1 - Highly efficient synthesis of nitrogen-atom endohedral fullerene by controlling plasma ion behaviors
AU - Cho, Soon Cheon
AU - Kaneko, Toshiro
AU - Ishida, Hiroyasu
AU - Hatakeyama, Rikizo
PY - 2012/2
Y1 - 2012/2
N2 - The thorough investigation has been made to find an optimum condition for the synthesis of the nitrogen-atom endohedral fullerene (N@C 60), which contains the atomic nitrogen inside the carbon cage of C 60. Using our radio-frequency-plasma apparatus, the condition is realized to maximize the density of nitrogen-molecule ions (N 2 +) in the plasma under the pressure of 25 Pa and the acceleration substrate bias voltage of 90 V. As a result, the target molecule of N@C 60 is produced in relatively high purity (mol concentration ratio of N@C 60 to C 60) of 0.25%, which is an order of magnitude higher than that reported in the other literatures.
AB - The thorough investigation has been made to find an optimum condition for the synthesis of the nitrogen-atom endohedral fullerene (N@C 60), which contains the atomic nitrogen inside the carbon cage of C 60. Using our radio-frequency-plasma apparatus, the condition is realized to maximize the density of nitrogen-molecule ions (N 2 +) in the plasma under the pressure of 25 Pa and the acceleration substrate bias voltage of 90 V. As a result, the target molecule of N@C 60 is produced in relatively high purity (mol concentration ratio of N@C 60 to C 60) of 0.25%, which is an order of magnitude higher than that reported in the other literatures.
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U2 - 10.1143/APEX.5.026202
DO - 10.1143/APEX.5.026202
M3 - Article
AN - SCOPUS:84857351813
SN - 1882-0778
VL - 5
JO - Applied Physics Express
JF - Applied Physics Express
IS - 2
M1 - 026202
ER -