The monograph should therefore play a binary role. First it should present the crystal structures of known chalcogenides. Second book should explain a wide range of preparation methods and basic chemical properties of sulphides, selenides and tellurides that can be important from practical point of view. These materials are referred to as compounds of technological future in optoelectronics and photovoltaics. ISBN: 9788301185367 Author Sławomir Podsiadło