Aqueous noncovalent functionalization and controlled near-surface carbon doping of multiwalled boron nitride nanotubes.
Noncovalent functionalization of boron nitride nanotubes (BNNTs) in aqueous solution was achieved by means of pi-stacking of an anionic perylene derivative, through which carboxylate-functionalized BNNTs were prepared for the first time. Starting from the functionalized nanotubes, an innovative methodology was designed and demonstrated for the controlled near-surface carbon doping of BNNTs. As a result of such delicate doping, novel B-C-N/BN coaxial nanotubes have been fabricated, and their p-type semiconducting behaviors were elucidated through gate-dependent transport measurements.
World Premier International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan. wwl@aphy.iphy.ac.cn
Wenlong
W
Wang
Yoshio
Y
Bando
Chunyi
C
Zhi
Wangyang
W
Fu
Enge
E
Wang
Dmitri
D
Golberg