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Copper Nanowire Arrays: Growth and Properties

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Title Copper Nanowire Arrays: Growth and Properties
 
Creator Sharma, Bharti
Singh, Ram Mehar
Kumar, Avshish
Kumar, Sushil
 
Subject Nanowires
Electrodeposition
Surface plasmon resonance
Electrical Conductivity
Field emitters
 
Description 612-618
Cu nanowire arrays of three different diameters have been synthesized via template assisted electrode position technique. Morphological, structural, optical, electrical and field emission properties were examined for these three nanowire arrays. Morphological study reveals the nanowire arrays are of uniform diameter throughout the length and of desired dimensions. Structural study shows the face centred cubic structure of nanowires. The crystallite size has been calculated using the Debye-Scherrer relation and micro strain has been calculated using Williamson-Hall analysis. The surface plasmon resonance absorption peak shifts towards red end with increase in diameter of nanowires. I-V characteristics show the ohmic behaviour. Electron field emission properties of Cu nanowire arrays have been studied using Fowler Nordheim theory. The field emission parameters like maximum emission current density, turn on field and field enhancement factor have been calculated for nanowire arrays of different diameters. Cu nanowire arrays of diameter 50 nm exhibit better field emission properties, indicating that thin nanowire arrays have great potential to be used as field emitters.
 
Date 2021-09-23T11:36:43Z
2021-09-23T11:36:43Z
2021-09
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/58134
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJPAP Vol.59(09) [September 2021]