The proceeding of the 50th Scottish Universities Summer School in Physics, this volume combines new physics and current device developments in low dimensional semiconductors. The aim of the text is to allow those who already have some familiarity with semiconductor physics and devices to broaden and expand their knowledge into expanding topics in low dimensional semiconductors. It provides a pedagogical coverage of selected areas of new and pertinent physics of low dimensional structures with a perspective of some of the latest optoelectronic devices under development. The coverage includes...