Optical, field-emission, and antimicrobial properties of ZnO nanostructured films deposited at room temperature by activated reactive evaporation.
作者： D. Yuvaraj , R. Kaushik , K. Narasimha Rao
DOI: 10.1021/AM900792K
关键词:
摘要: ZnO nanostructures were deposited on flexible polymer sheet and cotton fabrics at room temperature by activated reactive evaporation. Room-temperature photoluminescence spectrum of nanostructured film exhibited a week intrinsic UV emission strong broad yellow-orange visible emission. TEM HRTEM studies show that the grown nanostructures are crystalline in nature their growth direction was indentified to be along [002]. grown copper-coated sheets stable field-emissio characteristics with threshold voltage 2.74 V/mu m (250 mu A) very large field enhancement factor (beta) 23,213. Cotton fabric coated an excellent antimicrobial activity against Staphylococcus aureus bacteria (Gram positive), similar 73% reduction bacterial population is achieved compared uncoated after 4 h viability. Using shadow mask technique, we also selectively substrates.
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