Photoluminescence characterization of Cu2ZnGeS4 single crystals

Levcenko Sergiu; Guk Maxim; Merschjann Christoph; Gurieva Galina; Schorr S.; Lux-Steiner Martha Ch. H.; Arushanov Ernest

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LEVCENKO, Sergiu, GUK, Maxim, MERSCHJANN, Christoph, GURIEVA, Galina, SCHORR, S., LUX-STEINER, Martha Ch. H., ARUSHANOV, Ernest. Photoluminescence characterization of Cu2ZnGeS4 single crystals. In: Physica Status Solidi (C) Current Topics in Solid State Physics, 2013, vol. 10, pp. 1079-1081. ISSN 1862-6351. DOI: https://doi.org/10.1002/pssc.201200843

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Physica Status Solidi (C) Current Topics in Solid State Physics

Volumul 10 / 2013 / ISSN 1862-6351 /ISSNe 1610-1642

Photoluminescence characterization of Cu₂ZnGeS₄ single crystals

DOI:https://doi.org/10.1002/pssc.201200843

Pag. 1079-1081

Levcenko Sergiu¹, Guk Maxim², Merschjann Christoph³, Gurieva Galina¹, Schorr S.³⁴, Lux-Steiner Martha Ch. H.³, Arushanov Ernest³²

¹ Helmholtz-Centre Berlin for Materials and Energy,
² Institute of Applied Physics, Academy of Sciences of Moldova,
³ Helmholtz-Zentrum Berlin für Materialien und Energie,
⁴ Freie Universitat Berlin, Institut fur Geologische Wissenschaften

Disponibil în IBN: 27 octombrie 2023

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Optical properties of the Cu₂ZnGeS₄ bulk single crystals were characterized by using Raman spectroscopy and photoluminescence spectroscopy technique. The strongest lattice vibration mode of this compound observed at 359 cm^-1 and less intensive modes at 273, 291, 332, 370, 383, 405 and 414 cm^-1. PL spectra of the Cu₂ZnGeS₄ consist of dominant broad emission band located at about 1.40 eV and a less intensive near 2.00 eV at 4.5 K. The observed PL bands were attributed to the donor acceptor pair transitions, with activation energy of 37 (140) meV for dominant and less intensive band, respectively.

Cuvinte-cheie
Cu2ZnGeS4, photoluminescence, single crystals