Enhancement of electrical properties of manganese tungstate nanoparticles by beam irradiation

International Conference on Materials Science and Technology 2012

Sabu, N. Aloysius^1 ; Priyanka, K.P.^1 ; Sheena, X.^2 ; Mohammed, E.M.^2 ; Varghese, T.^1

Nanoscience Research Centre (NSRC), Department of Physics, Nirmala College, Muvattupuzha, Kerala

686 661, India^1

Department of Physics, Maharajas College, Kerala, Ernakulam

682 011, India^2

关键词: A.c. conductivity;    Beam irradiation;    Chemical precipitation method;    Electron beam irradiation;    Function of frequency;    Irradiated samples;    Loss tangent;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/73/1/012051/pdf
DOI  :  10.1088/1757-899X/73/1/012051

来源: IOP

【 摘 要 】

MnWO4 nanoparticles were synthesized using simple chemical precipitation method. The dielectric properties of irradiated and non-irradiated samples of monoclinic manganese tungstate nanoparticles have been studied as a function of frequency. It is found that electric properties such as dielectric constant, loss tangent and a.c. conductivity of the irradiated sample were much larger as compared to the non-irradiated sample, which has been attributed to defects and reduction in particle size caused by the beam irradiation. The present investigation observed that the electron beam irradiation is an efficient technique to modify the electrical properties of MnWO4 nanoparticles.