The aim of this module is to provide theoretical and practical knowledge on the materials that underpin electronic devices. This module encompasses the solid-state physical macro- and nano-scale properties of solid conductor, insulator, semiconductor and optoelectronic materials that make them useful in electronic devices, considering their structures, the behaviour of electrons, electrical conduction,  thermal conduction, how dopants are used and their interaction with light.  Understanding is applied to a variety of devices, including diodes, MOSFET transistors, photovoltaic cells and Hall probes.  Existing electronic materials as well as future developments will be explored.