Is the diameter or chirality distribution of single-walled carbon nanotubes selected in the synthesis process?
Based on recent theoretical photoluminescence intensity calculations, the population densities of sixteen semiconducting single-walled carbon nanotubes grown by alcohol catalytic chemical vapor deposition were estimated for two different temperatures. The profiles of population density merely as functions of tube-diameter or chiral angle are found to be widely scattered. However, systematic profiles are detectable when separately split into (2n + m), (n + 2m) and (n - m) family arrays. Apart from these well-knit family behaviors, the population densities of the group of nanotubes forming another three possible series [viz. constant-n, constant-m and constant-(n + m)] also show evidence of good correlations. Hence, a two-dimensional chiral-zone selective growth principle is hypothesized.
Bhattacharyya
Krishnendu
K
Department of Basic Engineering Sciences, Netaji Subhash Engineering College, Garia, Kolkata 700152, India.
Suda
Yoshiyuki
Y
Okita
Atsushi
A
Saito
Takeshi
T
Ozeki
Atsushi
A
Maekawa
Masayuki
M
Takayama
Junichi
J
Sugawara
Hirotake
H
Sakai
Yosuke
Y