Novel, heteroatomic boron, nitrogen and carbn nanotubes

Project: Research

Description

This project aims to develop novel, continuous, chemical vapour
deposition (CVD) based synthesis methods for three dimensional regular
nanostructures in the form of hetero-atomic nanotubes (NTs) composed of
boron, nitrogen and carbon: BN, N-doped carbon, B-doped carbon and mixed
B-N-C nanotubes. In doped nanotubes either or both boron and nitrogen
atoms replace carbon atoms within the structure and are covalently
bound. The main target is to control the electrical properties of
nanotubes (i.e. metallic or n- or p-semiconducting), with special
attention to control the number of layers: 1 (SWNT), 2 (DWNT) or several
(MWNT). The important industrial potential is demonstrated by developing
transparent, conductive, flexible nanotube mats. We will explore the
optical (i.e. band gap), electrical conductivity, electron field
emission as well as non-linear optical properties of produced nanotubes.
A significant dedicated modelling aspect is included. We will study NT
synthesis using system level computational fluid/aerosol dynamics
methods and investigate NT properties based on detailed atomistic
modelling using ab initio, molecular dynamics and Monte Carlo
simulations. Metrology issues include the development as well as
comparison of advanced transmission electron microscopic (TEM) and
scanning tunnelling (STM) methods to determine the atomic structure and
non-linear optical properties of produced nanotubes.
AcronymBNC
StatusFinished
Effective start/end date1/01/0731/12/10

Keywords

  • electronic properties.
  • nanotubes
  • doping