Characterization of Zn1-xMgxSe mixed crystals by photoacoustic method

Franciszek Firszt; Stanislaw Legowski; Hanna Meczynska; J. Pawlak; Barbara Sekulska; Jacek Szatkowski; Jan Zakrzewski; Wlodzimierz Paszkowicz

doi:10.1117/12.280737

14 July 1997 Characterization of Zn1-xMgxSe mixed crystals by photoacoustic method

Franciszek Firszt, Stanislaw Legowski, Hanna Meczynska, J. Pawlak, Barbara Sekulska, Jacek Szatkowski, Jan Zakrzewski, Wlodzimierz Paszkowicz

Author Affiliations +

Proceedings Volume 3178, Solid State Crystals: Growth and Characterization; (1997) https://doi.org/10.1117/12.280737
Event: XII Conference on Solid State Crystals: Materials Science and Applications, 1996, Zakopane, Poland

Abstract

The photoacoustic spectroscopy with a piezoelectric transducer was employed to evaluate the band gaps of a series of Zn_{1- x}Mg_xSe mixed crystals of different composition. The measurements were performed at 300 K, 90 K and 6 K. The Jackson-Amer model of photoacoustic effect for thermally thin and optically thick samples was applied. For samples of x greater than 0.18 (wurtzite structure) subgap optical absorption was observed.

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Franciszek Firszt, Stanislaw Legowski, Hanna Meczynska, J. Pawlak, Barbara Sekulska, Jacek Szatkowski, Jan Zakrzewski, and Wlodzimierz Paszkowicz "Characterization of Zn1-xMgxSe mixed crystals by photoacoustic method", Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); https://doi.org/10.1117/12.280737

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