화학공학소재연구정보센터
Journal of Electroanalytical Chemistry, Vol.655, No.1, 87-91, 2011
The electrodeposition, magnetic and electrical characterisation of Palladium-Nickel alloys
A process for electrodepositing PdNi alloys and subsequent electrical and magnetic characterisations are reported. PdNi alloys are deposited on 0.019-0.021 Omega cm and 1-2 Omega cm n-type Silicon from a bath of Pd-ethylenediamine dichloride and Ni sulphate. Compositional analysis of films deposited at multiple deposition potentials from different bath concentrations showed that film composition can be estimated from the composition of the bath and the deposition potential used. This allows deposition of films with a range of Ni content from the same bath using different deposition potentials. The deposited films form excellent Schottky barriers on 1-2 Omega cm Si with leakage currents of the order of mu A/cm(2) and a difference of about six orders of magnitude between forward and reverse bias currents. Films with Ni concentrations above 30% are observed to be ferromagnetic at room temperature and their saturation magnetisation is linearly correlated with the Ni content in the film. (C) 2011 Elsevier B.V. All rights reserved.