A study on the electrical conduction in solid mixtures of PMMA and a molecular material |
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| Institution: | 1. Department of Physics, Pabna University of Science and Technology, Pabna 6600, Bangladesh;2. Bangladesh University of Engineering and Technology, Dhaka, Bangladesh;1. Laboratoire des Sciences des Matériaux Inorganiques et leurs Applications, Faculté des Sciences Semlalia, Université Cadi Ayyad, Marrakech, Morocco;2. Unité de Dynamique et Structure des Matériaux Moléculaires, Université du Littoral- Côte d''Opale, Calais, France;1. Laboratoire de la Matière Condensée et Sciences Inter-disciplinaires (LaMCScI), Mohammed V, University of Rabat, Faculty of Sciences, Rabat B.P. 1014, Morocco;2. Département de Mathématiques, Mohammed V, University of Rabat, Faculty of Sciences, Rabat B.P. 1014, Morocco;1. ITMO University, Kronverkskiy, 49, Saint Petersburg 197101, Russia;2. Ioffe Institute, Politekhnicheskaya, 26, Saint Petersburg 194021, Russia;1. School of Physics and Optoelectronic Engineering, Xidian University, Xi''an, PR China;2. National Supercomputing Center in Shenzhen, Shenzhen 518055, PR China |
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| Abstract: | DC electrical conduction property of polymer poly(methyl methacrylate) (as host) mixed with a polymeric oxalate-based molecular material (as guest) in different weight percentages has been examined as a function of temperature and applied bias voltage to explore the effect of the guest on the electrical conduction properties of the host. The observed results showed that the room temperature conductivity of the solid mixtures decreases with increasing guest content along with an increase in activation energy. These mixtures are found to be the non-extrinsic type of semiconductors with exponential type of trap distribution. The activation energy and the pre-exponential factor values estimated following Arrhenius relation satisfied the compensation law for electrical conduction. Interestingly, the electrical conduction properties of the solid physical mixture are found to be identical with the melt-mixed analogue though they have morphological differences. |
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