Journal
JOURNAL OF EXPERIMENTAL NANOSCIENCE
Volume 4, Issue 1, Pages 67-76Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17458080802610868
Keywords
flexible graphitised carbon fabric; PANI; SnO2; Sn; MWNTs; chemical vapour deposition; field emitter; field enhancement factor; turn on field
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Funding
- IITM
- DRDO
- Council of Scientific and Industrial Research (CSIR) India
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The present work describes the field emission properties of multi-walled nanotubes (MWNTs)-based conducting polymer/metal-oxide/metal/MWNTs composites (polyaniline (PANI)/SnO2/Sn/MWNTs). MWNTs were synthesised by chemical vapour deposition technique. SnO2/Sn/MWNTs were prepared by using chemical reduction followed by calcination. By in situ polymerisation method, surface of SnO2/Sn/MWNTs were coated with PANI. PANI/SnO2/Sn/MWNTs field emitters were fabricated over flexible graphitised carbon fabric substrate by spin coating technique. High-resolution transmission electron microscopy and scanning electron microscopy were used to characterise the field emitters. Field emission properties have been studied using an indigenously made facility. The fabricated PANI/SnO2/Sn/MWNTs field emitters exhibited excellent field emission properties with a turn on field of 1.83 V m-1 and a field enhancement factor of 4800.
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