Nanotubes in a gradient electric field as revealed by STM TEM technique

Autor: Pedro M. F. J. Costa, Yoshio Bando, Masanori Mitome, Dmitri Golberg
Jazyk: angličtina
Předmět:
Zdroj: Nano Research. 1(2):166-175
ISSN: 1998-0124
DOI: 10.1007/s12274-008-8010-y
Popis: We have investigated the behavior of two nanotube systems, carbon and boron nitride, under controlled applied voltages in a high-resolution transmission electron microscope (TEM) equipped with a scanning tunneling microscope (STM) unit. Individual nanotubes (or thin bundles) were positioned between a piezomovable gold electrode and a biased (up to ±140 V) STM tip inside the pole-piece of the microscope. The structures studied include double-and multi-walled carbon nanotubes (the latter having diverse morphologies due to the various synthetic procedures utilized), few-layered boron nitride nanotube bundles and multi-walled boron nitride nanotubes (with or without functionalized surfaces). The electrical breakdown, physical failure, and electrostatic interactions are documented for each system.
Databáze: OpenAIRE