Enhanced Field-Emission from SnO2:WO2.72 Nanowire Heterostructures

DR Shinde, PG Chavan, S Sen, DS Joag… - … Applied Materials & …, 2011 - ACS Publications
DR Shinde, PG Chavan, S Sen, DS Joag, MA More, SC Gadkari, SK Gupta
ACS Applied Materials & Interfaces, 2011•ACS Publications
The field-emission properties of SnO2: WO2. 72 hierarchical nanowire heterostructure have
been investigated. Nanoheterostructure consisting of SnO2 nanowires as stem and WO2. 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/cm2) is achieved along with stable emission
for 4 h duration. The emission characteristic shows the SnO2: WO2. 72 nanoheterostructures …
The field-emission properties of SnO2:WO2.72 hierarchical nanowire heterostructure have been investigated. Nanoheterostructure consisting of SnO2 nanowires as stem and WO2.72 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/cm2) is achieved along with stable emission for 4 h duration. The emission characteristic shows the SnO2:WO2.72 nanoheterostructures are extremely suitable for field-emission applications.
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