Influence of carrier recombination on the thermodiffusion, thermoelastic and electronic strain photoacoustic signal generation mechanisms in semiconductors.
E. Marin et al., Influence of carrier recombination on the thermodiffusion, thermoelastic and electronic strain photoacoustic signal generation mechanisms in semiconductors., ANAL SCI, 17, 2001, pp. S284-S287
In this paper the Thermodifusion, Thermoelastic and Electronic Strain Compo
nents of the photoacoustic signal are calculated for a typical heat transmi
ssion configuration, including the effect of different carrier recombinatio
n processes. An analytical expression for the total pressure in the PA cham
ber is given. The theoretical results were tested by measurements performed
in Si samples.