Preparation and characterization of silver particulate structure deposited on softened poly(4-vinylpyridine) substrates

K. Mohan Rao, Manjunatha Pattabi, S. R. Sainkar, Arun Lobo, S. K. Kulkarni, Jayasheela Uchil, M. S. Murali Sastry

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Results of the investigations carried out on particulate silver films, deposited at a rate of 0.4 nm s-1 on poly(4-vinylpyridine) coated substrates held at temperatures in the range 440-490 K in a vacuum of 8×10-6 Torr are reported in this paper. A morphological study by scanning electron microscopy and x-ray diffraction was further confirmed by optical absorption studies. The shift in the plasmon resonance towards longer wavelength is ascribed to polymer-metal particle interactions. Electrical resistances immediately after deposition and at room temperature show a regular dependence on the thickness for the films in the temperature range studied. The films deposited at lower substrate temperatures show a lower negative temperature coefficient of resistance when compared to films deposited at higher substrate temperatures. X-ray photoelectron spectroscopy studies indicate the formation of a sub-surface particulate structure at higher substrate temperatures.

Original languageEnglish
Pages (from-to)2327-2336
Number of pages10
JournalJournal of Physics D: Applied Physics
Volume32
Issue number18
DOIs
Publication statusPublished - 21-09-1999

Fingerprint

Silver
particulates
silver
preparation
Substrates
Temperature
temperature
Negative temperature coefficient
Acoustic impedance
Particle interactions
metal particles
particle interactions
electrical resistance
Light absorption
poly(4-vinylpyridine)
Polymers
optical absorption
x ray diffraction
X ray photoelectron spectroscopy
Diffraction

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

Mohan Rao, K. ; Pattabi, Manjunatha ; Sainkar, S. R. ; Lobo, Arun ; Kulkarni, S. K. ; Uchil, Jayasheela ; Murali Sastry, M. S. / Preparation and characterization of silver particulate structure deposited on softened poly(4-vinylpyridine) substrates. In: Journal of Physics D: Applied Physics. 1999 ; Vol. 32, No. 18. pp. 2327-2336.
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Preparation and characterization of silver particulate structure deposited on softened poly(4-vinylpyridine) substrates. / Mohan Rao, K.; Pattabi, Manjunatha; Sainkar, S. R.; Lobo, Arun; Kulkarni, S. K.; Uchil, Jayasheela; Murali Sastry, M. S.

In: Journal of Physics D: Applied Physics, Vol. 32, No. 18, 21.09.1999, p. 2327-2336.

Research output: Contribution to journalArticle

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AU - Mohan Rao, K.

AU - Pattabi, Manjunatha

AU - Sainkar, S. R.

AU - Lobo, Arun

AU - Kulkarni, S. K.

AU - Uchil, Jayasheela

AU - Murali Sastry, M. S.

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