Kannan Balasubramanian

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (29)

Vertical arrays of nanofluidic channels fabricated without nanolithography

Klaus Kern, Kannan Balasubramanian, Floriano Traversi

Vertical arrays of sealed nanofluidic channels, in which both cross-sectional dimensions are controllable down to 10 nm, were fabricated by selective side etching of a SiGe heterostructure comprised of layers of alternating Ge fractions. Capillary filling ...

2009

Applications of the Static Quenching of Rhodamine B by Carbon Nanotubes

Klaus Kern, Kannan Balasubramanian

We report here on the interaction of the fluorescent dye rhodamine B (RB) with single-walled carbon nanotubes (SWCNTs). We observe that SWCNTs statically quench the fluorescence of RB by forming a stable ground state complex. Careful spectroscopic analysis ...

2009

Contact and edge effects in graphene devices

Klaus Kern, Kannan Balasubramanian, Marko Burghard, Ralf Thomas Weitz, Eduardo Jian Hua Lee

Electrical transport studies on graphene have been focused mainly on the linear dispersion region around the Fermi level(1,2) and, in particular, on the effects associated with the quasiparticles in graphene behaving as relativistic particles known as Dira ...

2008

Surface enhanced Raman scattering of carbon nanotubes decorated by individual fluorescent gold particles

Klaus Kern, Kannan Balasubramanian, Tilman Assmus, Marko Burghard

Confocal optical microscopy was employed to study the effect of surface-enhanced Raman scattering on individual single-walled carbon nanotubes covered with isolated gold particles. The gold particles with diameters between 10 and 120 nm were deposited in l ...

2008

Carbon nanotube transistors - chemical functionalization and device characterization

Klaus Kern, Kannan Balasubramanian, Marko Burghard, Ralf Thomas Weitz, Eduardo Jian Hua Lee

This review presents an overview of the recent progress made in the field of carbon nanotube (CNT)-based field-effect transistors (FETs). Starting from the simplest device architectures, various methods reported for fabricating CNT-FETs are presented. The ...

Wiley2008

Effect of the electronic structure of carbon nanotubes on the selectivity of electrochemical functionalization

Klaus Kern, Kannan Balasubramanian, Marko Burghard

The functionalization of carbon nanotubes through electrochemical routes is gaining importance due to the high degree of control achievable and the ability to render the tubes with a variety of chemical and biological species. In this article, we report sy ...

2008

Electrochemical modification of graphene

Klaus Kern, Kannan Balasubramanian, Marko Burghard, Ravi Shankar Sundaram

Nanoparticles on an atomic carpet: Individual graphene sheets have been decorated with metal nanoparticles through electrochemistry. The attachment of Pd particles onto graphene renders it sensitive to hydrogen. The controlled functionalization of graphene ...

Wiley2008

Electronic-band-structure mapping of nanotube transistors by scanning photocurrent microscopy

Klaus Kern, Kannan Balasubramanian, Marko Burghard, Eduardo Jian Hua Lee

2007

Electrochemical modification and photoelectronic properties of carbon nanotubes

Kannan Balasubramanian

This thesis reports on the investigations performed on electrochemical functionalization and photoelectronic transport properties of individual single-wall carbon nanotubes (SWCNTs). The first part of the thesis is concerned with the controlled modificatio ...

EPFL2005

Page 2 sur 2