In the present work,zinc oxide(ZnO)and silver(Ag)doped ZnO nanostructures are synthesized using a hydrotherm-al method.Structural quality of the products is attested using X-ray diffraction,which confirms the hexagonal wurtzite struc-ture of pure ZnO and Ag-doped ZnO nanostructures.XRD further confirms the crystallite orientation along the c-axis,(101)plane.The field emission scanning electron microscope study reveals the change in shape of the synthesized ZnO particles from hexagonal nanoparticles to needle-shaped nanostructures for 3 wt％Ag-doped ZnO.The optical band gaps and lattice strain of nanostructures is increased significantly with the increase of doping concentration of Ag in ZnO nanostructure.The anti-microbial activity of synthesized nanostructures has been evaluated against the gram-positive human pathogenic bacteria,Sta-phylococcus aureus via an agarose gel diffusion test.The maximum value of zone of inhibition(22 mm)is achieved for 3 wt％Ag-doped ZnO nanostructure and it clearly demonstrates the remarkable antibacterial activity.

Sagar Vikal;Yogendra K.Gautam;Anit K.Ambedkar;Durvesh Gautam;Jyoti Singh;Dharmendra Pratap;Ashwani Kumar;Sanjay Kumar;Meenal Gupta;Beer Pal Singh

Smart Materials and Sensor Laboratory,Department of Physics,Ch.Charan Singh University,Meerut,Uttar Pradesh 250004,India;Department of Genetics and Plant Breeding,Ch.Charan Singh University,Meerut,Uttar Pradesh 250004,India;Nanoscience Laboratory,Institute Instrumentation Centre,IIT Roorkee,Roorkee 247667,India;Department of Physics,University of Rajasthan,Jaipur 302004,India;Department of Physics,SBSR,Sharda University,Greater Noida,Uttar Pradesh,India

半导体学报（英文版）

[1]Sagar Vikal;Yogendra K.Gautam;Anit K.Ambedkar;Durvesh Gautam;Jyoti Singh;Dharmendra Pratap;Ashwani Kumar;Sanjay Kumar;Meenal Gupta;Beer Pal Singh-.Structural,optical and antimicrobial properties of pure and Ag-doped ZnO nanostructures)[J].半导体学报（英文版）,2022(03):77-85

hydrotherm,phylococcus

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