The Non-Crystalline Chalcogenides is the most detailed book published to date in the field of amorphous and glassy chalcogenide materials. The book covers the scientific and technological information on chalcogens (sulphur, selenium, tellurium) and chalcogenide combinations. Detailed descriptions and a large corpus of physico-chemical data on these materials are the outstanding features of this book. The influence of various external factors, especially light, is treated in great detail and includes the latest news in the research of non-crystalline chalcogenides. The basical applications in optoelectronics are also discussed. The book is intended for use as a reference and research handbook for graduate and postgraduate students, for scientists and engineers working in the field of materials science and device physics.