Open AccessEffect of bath temperature and concentration of buffer salt on the optoelectronic characteristics of CdS thin films synthesised by chemical bath deposition method
Author(s) -
Kakhaki Zahra Makhdoumi,
Youzbashi Amirali,
Sangpour Parvaneh,
Naderi Nima,
Kazemzadeh Asghar
Publication year - 2016
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2015.0414
Subject(s) - cadmium nitrate , chemical bath deposition , salt (chemistry) , thin film , thiourea , ammonium nitrate , deposition (geology) , inorganic chemistry , materials science , nitrate , ammonia , substrate (aquarium) , cadmium , ammonium , chloride , chemistry , analytical chemistry (journal) , nanotechnology , chromatography , metallurgy , organic chemistry , paleontology , oceanography , sediment , geology , biology
CdS thin films were deposited onto glass substrate by the chemical bath deposition method, using cadmium chloride (CdCl 2 ) as a source of cadmium, thiourea (CS(NH 2 ) 2 ) as a source of sulphur, ammonium nitrate (NH 4 NO 3 ) as buffer salt and ammonia as pH controller and complexing agent. The effects of the deposition temperature and the concentration of ammonium nitrate on the structural, compositional, optical and optoelectrical properties of CdS thin films were investigated. The optimised sample was utilised for fabrication of photodetectors. A high photosensitivity and a short response time was reported for the photodetectors based on the sample with the bath temperature of 65°C and concentration of ammonium nitrate of 1.5 M compare with the other samples.