Formation of nanosized mixed semiconductor PbxCd1 —xS in situ into PEO—polymer electrolyte matrix at room temperature is reported. The disperse phase was identified by X-ray diffraction analysis. Optical microscopy shows the increase in amorphicity with dispersal of semiconductor while scanning electron microscope/ transmission electron microscope affirmed the formation of nanoparticulates with various sizes. The size distribution was further supported by Ultraviolet/Visible absorption of the colloid. The detailed electrical characterizations show that the dispersed PbxCd1—xS introduced a small (≤13%) electronic conductivity into pure ion conducting PEO:NH4I polymer electrolyte matrix.
Henglien, A. (1989). Small-particle Research: Physicochemical Properties of Extremely Small Colloidal Metal and Semiconductor Particles, Chem. Rev., 89: 1861-1873.
2.
Sze, S.M. ( 1969). Physics of Semiconductor Devices, Wiley Interscience, New York.
3.
Braun, P.V., Osenar, P. and Stupp, S.I. ( 1996). Semiconducting Superlattices Templated by Molecular Assemblies , Nature, 380: 325-328.
4.
Nanda, K.K. and Sahu, S.N. ( 2001). One-dimensional Quantum Confinement in Electrodeposited PbS Nanocrystalline Semiconductors, Adv. Mater., 13: 280-283.
5.
Maity, R., Maiti, U.N., Mitra, M.K. and Chattopadhyay, K.K. ( 2006). Synthesis and Optical Characterization of Polymer-capped Nanocrystalline ZnS Thin Films by Chemical Process, Physica E, 33: 104-109.
6.
Di Luccio, T. , Piscopiello, E., Laera , A.M. and Vittori Antisari , M. (2007 ). Structural Studies of Thin Films of Semiconducting Nanoparticles in Polymer Matrices, Mat. Sci. & Eng. C, 27: 1372-1376.
7.
Rong, R. and Nelson, A.J. ( 2000). Optical Properties of ZnS1-xSex Alloys Fabricated by Plasma-induced Isoelectronic Substitution, J. Appl. Phys. , 87: 8557-8560.
8.
Wood, D.A., Rogers, K.D., Lane, D.W. and Coath, J.A. ( 2000). Optical and Structural Characterization of CdSxTe1-x Thin Films for Solar Cell Applications, J. Phys.: Condens. Matter., 12: 4433-4450.
9.
Singh, P.K., Chandra, S. and Chandra, A. ( 2002). Polymer Electrolyte Composites with Dispersed Semiconductors , J. Mat. Sci. Lett., 21: 1393-1395.
10.
Chandra, A. , Singh, P.K. and Chandra, S. (2002). Semiconductor-dispersed Polymer Electrolyte Composites, Solid State Ionics, 154-155: 15-20.
11.
Singh, P.K. , Pratap, R. and Chandra, A. (2002). Nanocrystalline ZnS Dispersed in Polymer Electrolyte (PEO:NH4I): Preparation and Electrical Conductivity Measurements, Prog. Crys. Growth Charact., 44: 175-182.
12.
Maurya, K.K. , Hashmi, S.A. and Chandra, S. ( 1992). Proton Conducting Polymer Electrolyte: II Poly Ethylene Oxide + NH4l System, J. Mater. Sci., 27: 6357-6364.
13.
Singh, P.K. , Kim, K.W. and Rhee, H.W. ( 2008). Electrical, Optical and Photoelectrochemical Studies on a Solid PEO-polymer Electrolyte Doped with Low Viscosity Ionic Liquid, Electrochem. Commun., 10: 1769-1772.
14.
Denton, R., Muhlschlegal, B. and Scalapino, D.J. ( 1973). Thermodynamic Properties of Electrons in Small Metal Particles, Phys. Rev. B, 7: 3589-3607.
15.
Brus, L.E. ( 1983). Simple Model for the Ionization Potential, Electron Affinity, and Aqueous Redox Potentials of Small Semiconductor Crystallites , J. Chem. Phys., 79: 5566-5571.
16.
Wagner, J.B. and Wagner, C. ( 1957). Electrical Conductivity Measurements on Cuprous Halides , J. Chem. Phys., 26: 1597-1601.
17.
Macdonald, J.R. ( 1987). Impedance Spectroscopy, John Wiley & Sons, New York.
