Publications by Vivek Pachauri

Field-effect-based chemical sensing using nanowire-nanoparticle hybrids: The ion-sensitive metal-semiconductor field-effect transistor

Klaus Kern, Kannan Balasubramanian, Vivek Pachauri

A new class of nanoscale devices called ion-sensitive metal-semiconductor field-effect transistors (nano-IS-MESFET) for sensing applications is reported. Nanoparticle-nanowire hybrids with active metal-semiconductor regions are operated as ion-sensitive fi ...

Amer Inst Physics2013

Chemically exfoliated large-area two-dimensional flakes of molybdenum disulfide for device applications

Klaus Kern, Kannan Balasubramanian, Vivek Pachauri

A solution-based exfoliation method for obtaining large-area two-dimensional flakes of molybdenum disulfide, followed by the fabrication of electrical devices is presented in this manuscript. The exfoliation method is based on the use of an aprotic solvent ...

Amer Inst Physics2013

Self-Assembled Liquid-Gated Zinc Oxide Nanowire Transistors : Fabrication and Sensing Operation

Vivek Pachauri

This thesis aims at the site-specific realization of self-assembled field-effect transistors (FETs) based on semiconducting Zinc oxide NWs and their application towards chemical and bio-sensing in liquid medium. At first, a solution based growth method for ...

EPFL2011

Template-free self-assembly of hierarchical ZnO structures from nanoscale building blocks

Klaus Kern, Kannan Balasubramanian, Vivek Pachauri

We study chemical bath deposition method for synthesizing large variety constructions of ZnO nanostructures. By varying reaction kinetics we control the shape, size and morphology to yield flower-like, rolling-pin-like, viscous-fingers-like and antenna-lik ...

Elsevier2010

Site-Specific Self-Assembled Liquid-Gated ZnO Nanowire Transistors for Sensing Applications

Klaus Kern, Kannan Balasubramanian, Vivek Pachauri

A scalable bottom-up solution-based approach for the site-specific realization of ZnO nanowire (ZnO-NW)-based field-effect transistors for sensing applications in liquids is reported. The nanowires are grown across pre-defined electrodes patterned by photo ...

2010