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Titolo:
PREPARATION OF ZNO FILMS BY SPRAY-PYROLYSIS
Autore:
FIDDES AJC; DUROSE K; BRINKMAN AW; WOODS J; COATES PD; BANISTER AJ;
Indirizzi:
UNIV DURHAM,DEPT PHYS,SOUTH RD DURHAM DH1 3LE ENGLAND UNIV DURHAM,DEPT PHYS DURHAM DH1 3LE ENGLAND UNIV DURHAM,DEPT CHEM DURHAM DH1 3LE ENGLAND
Titolo Testata:
Journal of crystal growth
fascicolo: 1-4, volume: 159, anno: 1996,
pagine: 210 - 213
SICI:
0022-0248(1996)159:1-4<210:POZFBS>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
A.J.C. Fiddes et al., "PREPARATION OF ZNO FILMS BY SPRAY-PYROLYSIS", Journal of crystal growth, 159(1-4), 1996, pp. 210-213

Abstract

Decomposition of zinc acetylacetonate monohydrate (Zn(acac)(2) . H2O)to produce undoped ZnO films by spray pyrolysis has been investigatedbetween 100 and 400 degrees C. Spray trials were conducted in both dry conditions and with excess water. Films with enhanced adhesion, optical transmission and conductivity were deposited above 200 degrees C. With excess water this temperature correlated with a change in reaction mechanism from intermolecular and intramolecular at T < 200 degrees C to pyrolytic and hydrolytic/pyrolytic at T > 200 degrees C, Water enhanced the reactant utilisation and yielded films with lower resistivity. Use of lamps to heat the spray served only to decrease surface roughness. XRD assessment of preferred orientation and grain size is alsopresented. Annealing in a reducing atmosphere reduced the resistivityof the films by three orders of magnitude, the lowest obtained being similar to 10(-4) Ohm . m.

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Documento generato il 29/11/20 alle ore 03:18:33