Chemically very different systems are considered in the book: inorganic solids (such as amorphous semiconductors and glasses), organic materials (for example conjugated and doped polymers) and biological systems (DNA molecules). Solids with electron conduction and those with ion conduction are described. Remarkably, the charge-transport mechanisms in most of these systems can be understood in the context of rather universal concepts.

This book is addressed to postgraduate students and research professionals in physics, chemistry, and electrical engineering, who would like to learn about charge-transport properties of disordered systems and about applications of such systems in modern electronics.