Piezoelectric theory of detection of surface states
Department of Electronics and Computer Science, Technical University of Koszalin, ul. 2 Sniadeckich St., 75-453 Koszalin, Poland
2 Instytut Fizyki, Uniwersytet Mikołaja Kopernika, ul. Grudziadzka 5/7, 87-100 Torun, Poland
This paper presents a developed theory of computations and analysis of piezoelectric photothermal amplitude and phase spectra of semiconductors with surface defects states on one or both surfaces of the sample exhibiting energies in the energy gap region of a semiconductor. The theory comprises considerations of the front and rear experimental configurations. The presented theory is the extension of the Jackson–Amer model for the case of many optically generated and spatially separated heat sources.
© EDP Sciences, Springer-Verlag, 2008