Deposition and characterization of ZnO:Mg thin films: the study of antibacterial properties

نویسنده:
, , , , , , ,
سال
: 2011
چکیده: ZnO:Mg thin films with different amounts of Mg were deposited on a glass substrate using the

spray pyrolysis technique. The structural, optical and antibacterial properties of the

films were studied as a function of the dopant concentration. The ZnO:Mg films were

characterized using methods such as x-ray diffractometry, scanning electron microscopy,

scanning tunneling microscopy and UV–Vis spectroscopy. The samples display hexagonal

wurtzite structure, with no secondary phase. Morphological studies indicated the deposition of

a uniform film, and particle size decreases with Mg doping. Optical studies revealed that the

optical band gap and optical transmittance increase with Mg concentration. The antibacterial

activities of the samples against Escherichia coli (gram-negative) cultures were tested by the

drop test method, which shows that Mg doping increases antibacterial activities of thin films.
کلیدواژه(گان): Thin films,Optical band gap,Antibacterial coating,Drop test,Spray pyrolysis
کالکشن :
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