Morphology dependent field emission from In2O3 nanostructures

Soumitra Kar, Supriya Chakrabarti, Subhadra Chaudhuri

Research output: Contribution to journalArticle

46 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.

Original languageEnglish
Article number041
Pages (from-to)3058-3062
Number of pages5
JournalNanotechnology
Volume17
Issue number12
DOIs
Publication statusPublished - 28 Jun 2006

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