Title :
Photoacoustic and photothermal deflection spectroscopy of semiconductors
Author :
Amato, G. ; Benedetto, G. ; Boarino, L. ; Maringelli, M. ; Spagnolo, R.
Author_Institution :
Istituto Electtrotecnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
7/1/1992 12:00:00 AM
Abstract :
Photothermal techniques have been widely used for the determination of light absorption spectra of semiconductors, the main reason being the possibility of successfully measuring the weak absorption in the subgap region. The authors present and discuss the most relevant applications, particularly in the field of thin films of amorphous semiconductors.
Keywords :
amorphous semiconductors; electron energy states of amorphous solids; light absorption; optical films; photoacoustic effect; photoacoustic spectroscopy; photothermal effects; photothermal spectroscopy; semiconductor thin films; amorphous semiconductors; light absorption; light absorption spectra; photoacoustic spectroscopy; photothermal deflection spectroscopy; subgap region; thin films; weak absorption;
Journal_Title :
Science, Measurement and Technology, IEE Proceedings A
