Sd. Sartale et Cd. Lokhande, Preparation and characterization of nickel sulphide thin films using successive ionic layer adsorption and reaction (SILAR) method, MATER CH PH, 72(1), 2001, pp. 101-104
Semiconducting nickel sulphide (NiS) thin films were deposited onto glass,
fluorine doped tin oxide (FTO) coated glass and single crystal Si(1 1 1) wa
fer substrates using a new successive ionic layer adsorption and reaction (
SILAR) method. The deposition conditions for obtaining good quality films s
uch as concentration, pH and temperature of cationic and anionic precursor
solutions, immersion and rinsing times and number of immersions were optimi
zed. The XRD studies show that the crystallinity of Nis thin films depends
on the nature of substrate. The optical band gap and activation energy were
found to be 0.45 and 0.15 eV, respectively. Thermo-emf measurement reveale
d that the films are of p-type semiconductors. (C) 2001 Elsevier Science B.
V. All rights reserved.