Multi Frequency EPR Spectroscopy of Conjugated Polymers and Their Nanocomposites

Conjugated polymeric materials and their nanocomposites are widely used for the creation of alternative sources of renewable energy, cell phone screens, mobile gadgets, video players and OLED-TV, as well as organic diodes, transistors, sensors, etc. with field-dependent and spin-assisted electronic properties. Multifrequency EPR Spectroscopy methods can help researchers optimize their structural, magnetic and electronic properties for the creation of more efficient molecular devices. This book will acquaint the reader with the basic properties of conjugated polymers, the fundamentals of EPR Spectroscopy, and the information that can be obtained at different wavebands of EPR spectroscopy.

Preface. List of Symbols and Abbreviations. Introduction. Properties of Conjugated Polymers. Solitons, Polarons and Bipolarons in Conjugated Polymers.Theoretical Backgrounds of Paramagnetic Resonance and Spin Transfer in Conjugated Polymers. Magnetic Parameters of Organic Radicals Directly Obtained by EPR Spectroscopy. Electron Relaxation of Spin-Packets in Conjugated Polymers. Spin Diffusion in Conjugated Polymers. Molecular Dynamics in Conjugated Polymers. Charge Carrier Transfer Mechanisms in Low-Dimensional Systems. Magnetic, Relaxation and Dynamic Parameters of Charge Carriers in Conjugated Polymers. Polyacetylene. Poly( bis-Alkylthioacetylene). Poly (p-Phenylene). Polypyrrole. Poly (Tetrathiafulvalene). Polyaniline. Polythiophene. Poly(3-Oktylthiophene). Charge Transfer by Spin Carriers in Polymer:Fullerene Composites. Line Shape and g-Factor. Photoinitiation and Recombination of Charge Carriers in Polymer:Fullerene Composites. LEPR Linewidth. Electron Relaxation and Dynamics of Spin Charge Carriers. Spin-Assisted Charge Transfer in Polymer/Polymer:Fullerene Composites. Concluding Remarks. Acknowledgments.References. Index

Victor I. Krinichnyi was employed as a scientific researcher and a senior scientific researcher in the Institute of Problems of Chemical Physics RAS (former the above mentioned Institute of Chemical Physics in Chernogolovka RAS). His SciD (Physics and Mathematics) Thesis (Habilitation) titled "High resolution 2-mm wave band EPR spectroscopy in the study of biological and conducting polymers' was also successfully defended by 1992 in the same Institute where he works today as a leading scientific researcher and heads the High-Frequency EPR Group.