The dielectric studies on sol–gel routed molybdenum oxide thin film

作     者：P.Adal Arasu R.Victor Williams 

作者机构：Department of PhysicsSt.Joseph's CollegeTrichyIndia 

出 版 物：《Journal of Advanced Dielectrics》 (先进电介质学报（英文）)

年 卷 期：2017年第7卷第2期

页      面：21-27页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Sol-gel dielectric constant capacitance tunability Curie-temperature figure-of-merit 

摘      要：The influence of temperature on the dielectric properties of sol-gel routed spin-coated molybdenum trioxide(MoO_(3)) thin film has been *** films were annealed at temperatures 250℃,350℃ and 400℃.The phase transformation from amorphous to
-orthorhombic phase with preferential orientation(022)has been found by XRD for the film annealed above 250℃.The vibration modes of
-orthorhombic MoO_(3) have been examined by Raman *** predominant Raman s band of
-orthorhombic MoO_(3) thin film has been found at the frequency range 1000–600 cm^(-1).Using the UV–Vis spectrum,the band gap of the film is found to be 3.3–3.8 *** surface morphology of the MoO_(3) films has been examined by scanning electron *** AC conductivity measurement of the MoO_(3) film has been carried out in the frequency range 10–10^(6) *** frequency dependence of the impedance has been plotted in the complex *** variation of the capacitance and dielectric constant of MoO_(3) film with respect to temperature and frequency has been *** of capacitance and figure of merit of the film are also determined.