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Digitale Medien

Photopyroelectric spectroscopy (P2ES) of electronic defect centers in crystalline n-CdS (1987)

Mandelis, A. ; Lo, W. ; Wagner, R. E.

Springer

Applied physics 44 (1987), S. 123-130

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Details

ISSN: 1432-0630

Schlagwort(e): 72.20 ; 61.70

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau , Physik

Notizen: Abstract Photopyroelectric spectroscopy (P2ES) of n-CdS single crystals was performed at an open circuit, and in conjunction with photocurrent spectroscopy (PCS) in the presence of an applied ac or dc transverse field. The results showed that P2ES is very sensitive to the presence of deliberately introduced subbandgap defect structures, with the P2E signal dominated by non-radiative de-excitation mechanisms at defect centers. The potential of this technique as a powerful electronic defect diagnostic tool, combined with the overall experimental simplicity, was demonstrated with mm-thick crystals used as received in an open-cell geometry.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00626412

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