Morphology dependent field emission from In2O3 nanostructures

Soumitra Kar, Supriya Chakrabarti, Subhadra Chaudhuri

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

In2O3 nanostructures such as aligned nanocolumn arrays, nanowires and nanopyramids were fabricated using a simple physical evaporation technique. Nanocolumn arrays and the nanowires were produced using an Au catalysed vapour-liquid-solid (VLS) technique and the nanopyramid structures were prepared using a non-catalytic approach. Field-emission studies revealed that the morphologies of these In2O3 nanoforms have considerable effects on the field-emission properties. Among these nanoforms, nanocolumn arrays have the lowest turn-on voltage and the highest field enhancement factor. The results indicated that the In2O 3 nanoforms could be used as cathode materials for the fabrication of devices based on field-emission properties.

LanguageEnglish
Article number041
Pages3058-3062
Number of pages5
JournalNanotechnology
Volume17
Issue number12
DOIs
Publication statusPublished - 28 Jun 2006

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Field emission
Nanostructures
Nanowires
Evaporation
Cathodes
Vapors
Fabrication
Liquids
Electric potential

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Kar, Soumitra ; Chakrabarti, Supriya ; Chaudhuri, Subhadra. / Morphology dependent field emission from In2O3 nanostructures. In: Nanotechnology. 2006 ; Vol. 17, No. 12. pp. 3058-3062.
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Morphology dependent field emission from In2O3 nanostructures. / Kar, Soumitra; Chakrabarti, Supriya; Chaudhuri, Subhadra.

In: Nanotechnology, Vol. 17, No. 12, 041, 28.06.2006, p. 3058-3062.

Research output: Contribution to journalArticle

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