Metastable States in Amorphous Chalcogenide Semiconductors

This book addresses an interesting and technologically important class of materials, the amorphous chalcogenide semiconductors. Experimental results on the structural and electronic metastable states in Se-rich chalcogenides are presented. Special attention is paid to the states in the mobility gap and their sensitivity to various factors such as irradiation, annealing and composition. Photoinduced changes of structure and physical properties are also considered and structural transformation at photocrystallization is studied in detail. Finally, the authors discuss potential applications of the observed effects in xerography, digital radiography and for optical data storage.

Klappentext

This book addresses an interesting and technologically important class of materials, the amorphous chalcogenide semiconductors. Experimental results on the structural and electronic metastable states in Se-rich chalcogenides are presented. Special attention is paid to the states in the mobility gap and their sensitivity to various factors such as irradiation, annealing and composition. Photoinduced changes of structure and physical properties are also considered and structural transformation at photocrystallization is studied in detail. Finally, the authors discuss potential applications of the observed effects in xerography, digital radiography and for optical data storage.

Zusammenfassung

This book presents experimental results on the structural and electronic metastable states in Se-rich chalcogenides. Coverage includes states in the mobility gap, structural transformation, photocrystallization, and many potential related applications.

Inhalt
Effect of Thermal Evaporation Conditions on Structure and Structural Changes in Amorphous Arsenic Sulfides.- Optical Absorption and Structural Transformations in Arsenic Selenide Films.- Trap Level Spectroscopy in Amorphous Selenium-Based Semiconductors.- Photoinduced Effects on Electronic Metastable States.- Deep Level Spectroscopy in Selenium-Rich Amorphous Semiconductors.- Recombination Process and Non-Isothermal Relaxation of Low-Temperature Photoinduced Effects.- Electronic Properties of Materials with Gross Permanent Photoinduced Changes: CuAsSe Glasses.- Carrier Transport in Selenium-Based Amorphous Multilayer Structures.- Spectroscopic Studies of Gap States and Laser-Induced Structural Transformations in Selenium-Based Arsenic-Free Amorphous Semiconductors: Sb x Se1?x Alloys.