Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
RESISTANCE-TIME DEPENDENCE AND GAUGE FACTOR OF 2-DIMENSIONAL GRANULARGOLD-FILMS DEPOSITED ON MELINEX
Autore:
BISHAY AG; DARWISH AM; ABDELHADY DA;
Indirizzi:
AIN SHAMS UNIV,FAC ENGN,DEPT ENGN PHYS CAIRO EGYPT
Titolo Testata:
Journal of materials science. Materials in electronics
fascicolo: 6, volume: 6, anno: 1995,
pagine: 419 - 423
SICI:
0957-4522(1995)6:6<419:RDAGFO>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
MANGANESE FILMS; STRAIN-GAUGES; COALESCENCE; SURFACE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
A.G. Bishay et al., "RESISTANCE-TIME DEPENDENCE AND GAUGE FACTOR OF 2-DIMENSIONAL GRANULARGOLD-FILMS DEPOSITED ON MELINEX", Journal of materials science. Materials in electronics, 6(6), 1995, pp. 419-423

Abstract

Two-dimensional granular gold films (2D-G(Au)F) with different mass thicknesses were prepared by thermal evaporation in vacuum. The plasticsubstrate was polyethylene terephthalate, Melinex, held at ambient temperature during deposition. The dependence of the direct current (d.c.) resistance of the gold films on time was studied in air at a room temperature of 23 degrees C until the films attained reasonable short-term stability, that is, invariance of the resistance with time. The films showed this stability after a few hours, from the moment the deposition was halted, and this time is remarkably shorter than that reported in the literature for 2D-G(Au)F deposited on other substrates. The effect of strain ( similar to 10(-3)) on the stable d.c, resistance ofthe 2D-G(Au)F was investigated and the gauge factor, nu, was deduced for each mass thickness. Strains were induced in the stable films via the direct stretching of the Melinex substrate by the aid of a mechanical system which was specially designed for that purpose. The values of nu for the films studied are comparable to those published for 2D-G(Au)F deposited on other substrates. Also, it was found that thinner gold films possessed higher values of nu than thicker films. The presentexperimental results can be interpreted by: (i) speculating that the electron transfer between gold islands took place via a quantum-mechanical tunnelling mechanism, and (ii) considering the dynamic island model.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/08/20 alle ore 00:38:11