Title :
Photodarkening and photoinduced anisotropy in amorphous chalcogenide thin films induced with He-Ne laser
Author :
Park, Soo-Ho ; Chun, Jin-Young ; Lee, Hyun-Yong ; Chung, Hong-Bay
Author_Institution :
Dept. of Electron. Mater. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
Photoinduced dichroism in As40Ge10Se15 S35 thin films induced with illumination of 1.96 eV light has been studied. Photodarkening has been also investigated. The photoinduced anisotropy sustains a metastable state after cessation of illumination, while it can be erased with illumination of unpolarized light or annealing at 62°C. The kinetics of saturated dichroism (D sat) was satisfied with Gaussian approximation according to the temperature changes
Keywords :
annealing; arsenic compounds; chalcogenide glasses; dichroism; germanium compounds; metastable states; photochromism; semiconductor thin films; 1.96 eV; 62 C; As40Ge10Se15S35; Gaussian approximation; He-Ne laser illumination; amorphous chalcogenide thin film; annealing; kinetics; metastable state; photodarkening; photoinduced anisotropy; photoinduced dichroism; Amorphous materials; Anisotropic magnetoresistance; Annealing; Gaussian approximation; Kinetic theory; Lighting; Metastasis; Photochromism; Temperature; Transistors;
Conference_Titel :
Electrical Insulating Materials, 1998. Proceedings of 1998 International Symposium on
Conference_Location :
Toyohashi
Print_ISBN :
4-88686-050-8
DOI :
10.1109/ISEIM.1998.741795
