Open AccessCathodic Electrodeposition and Characterization of ni3se2 thin Films
Author(s) -
Anuar Kassim,
Zulkarnain Zainal,
N. Saravanan,
A.R Kartini
Publication year - 2017
Publication title -
asean journal on science and technology for development/asean journal on science and technology for development
Language(s) - English
Resource type - Journals
eISSN - 2224-9028
pISSN - 0217-5460
DOI - 10.29037/ajstd.88
Subject(s) - linear sweep voltammetry , crystallite , thin film , materials science , band gap , analytical chemistry (journal) , selenide , aqueous solution , cyclic voltammetry , substrate (aquarium) , titanium , nanotechnology , optoelectronics , chemistry , metallurgy , electrochemistry , electrode , oceanography , selenium , chromatography , geology
Nickel selenide thin films have been potentiostatically electrodeposited on titanium substrate at room temperature from aqueous solution containing Ni-EDTA and Na2SeO3. Various deposition potentials were attempted in order to determine the optimum electrodeposition potential. The films were characterised using x-ray diffraction analysis (XRD) and the photoactivity of the electrosynthesised films were studied using linear sweep voltammetry (LSV). The band-gap energy was determined using UV-visible spectroscopy. The XRD analysis indicated the formationof polycrystalline Ni3Se2. The film exhibited p-type semiconductor behaviour with good photosensitivity. The bandgap energy (Eg) was about 1.4eV.