MODELING AND AB INITIO CALCULATIONS OF MOLECULAR- AND 2D NETWORK-LIKE ISOMERS OF LIGHT SENSITIVE CHALCOGENIDES

Abstract

Research into physical properties of non-crystalline chalcogenides revealed their remarkable structural, electronic, optical properties and large functionality, and has attracted significant attention both from fundamental and applied points of view, representing an important scientific and technological challenge. In addition to their intrinsic infrared properties, they offer a wide possibilities in domains such as information technologies (optical data storage, ultrafast optical transmitting and information processing), photolithography, renewable energy technologies (high efficiency solar cells, solid electrolytes), medicine, thermal imaging, sensing and biosensing etc. thanks to the advantageous combination of infrared properties, optical activity, structural photosensitivity and high third-order optical non-linearity. Recent progress in photonics shows that amorphous chalcogenides are among the best candidates as an active optical media for ultrafast all-optical processing systems.