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Abstract
Results of thermal investigations of the amorphous five-component chalcogenide system Ge20As14(SexS1−x)52I14 are presented. Differential thermal analysis (DTA), derivative differential thermal analysis (DDTA), and dilatometry were employed to determine the temperatures of softening and partial crystallization of the samples. Thermal treatment of the samples at 1000°C and recording of the corresponding thermogravimetric (TG) and derivative thermogravimetric (DTG) curves allowed an elucidation of the full mechanism of their decomposition, which proceeds via seven characteristic phase transitions.
technological applications of these materials such as image sensors, thermoelectric properties, and optical recording, have become possible due to recent improvements in preparation techniques. In the field of amorphous chalcogenide alloys, mostly selenium (Se
investigation of novel materials and structures. In particular, Selenium alloys are used in X-ray imaging and photonics [ 10 ]. Amorphous chalcogenides based on Se and Te elements has been extensively studied by various workers [ 11 – 13 ] and such compounds
Introduction Chalcogenide glasses are appealing materials because of their use in various solid-state devices both in scientific and technological fields. Among the amorphous chalcogenide alloys, mostly selenium (Se) based
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-0584(00)00229-7 . 13. Kotkata , MF , Mahmoud , EA . Non-isothermal crystallization kinetic studies on amorphous chalcogenide semiconductors . Mater Sci Eng 1982 54 : 163 – 168 10
