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Type: Artigo de periódico
Title: Photoacoustic Characterization Of Semiconductors: Transport Properties And Thermal Diffusivity In Gaas And Si
Author: Pinto Neto A.
Vargas H.
Leite N.F.
Miranda L.C.M.
Abstract: The photoacoustic signal of two semiconductor samples is investigated as a function of the modulation frequency in a heat-transmission configuration. It is shown that, in the frequency range where the sample is thermally thick, the signal amplitude and phase can single out the different fast and slow nonradiative recombination heat sources responsible for the photoacoustic signal. The characterization of the thermal and the carrier transport properties is discussed and some practical procedures for this purpose are also outlined. © 1990 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.41.9971
Date Issue: 1990
Appears in Collections:Unicamp - Artigos e Outros Documentos

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