Enhanced field-emission from SnO2:WO(2.72) nanowire heterostructures

Deodatta R Shinde; Padmakar G Chavan; Shashwati Sen; Dilip S Joag; Mahendra A More; S C Gadkari; S K Gupta

doi:10.1021/am2011977

Enhanced field-emission from SnO2:WO(2.72) nanowire heterostructures

ACS Appl Mater Interfaces. 2011 Dec;3(12):4730-5. doi: 10.1021/am2011977. Epub 2011 Nov 23.

Authors

Deodatta R Shinde¹, Padmakar G Chavan, Shashwati Sen, Dilip S Joag, Mahendra A More, S C Gadkari, S K Gupta

Affiliation

¹ Center for Advanced Studies in Materials Science and Condensed Matter Physics, Department of Physics, University of Pune, Pune 411007, India.

PMID: 22066739
DOI: 10.1021/am2011977

Abstract

The field-emission properties of SnO(2):WO(2.72) hierarchical nanowire heterostructure have been investigated. Nanoheterostructure consisting of SnO(2) nanowires as stem and WO(2.72) nanothorns as branches are synthesized in two steps by physical vapor deposition technique. Their field emission properties were recorded. A low turn-on field of ~0.82 V/μm (to draw an emission current density ~10 μA/cm(2)) is achieved along with stable emission for 4 h duration. The emission characteristic shows the SnO(2):WO(2.72) nanoheterostructures are extremely suitable for field-emission applications.

Publication types

Research Support, Non-U.S. Gov't