Photoluminescence characterization of Cu2ZnGeS4 single crystals. Issue 7 (6th May 2013)

• Record Type: Journal Article
• Authors: Levcenko, S.; Guc, M.; Merschjann, C.; Gurieva, G.; Schorr, S.; Lux‐Steiner, M.; Arushanov, E.
• Is Part Of: Physica status solidi. Volume 10:Issue 7/8(2013:Aug.)
• Page Start: 1079
• Page End: 1081
• Publication Date: 2013-05-06
• Subjects: Cu2ZnGeS4 -- photoluminescence -- single crystals; Solid state physics -- Congresses; Solid state physics -- Periodicals; Solid state physics; Conference proceedings; Periodicals; 530.41
• DOI: 10.1002/pssc.201200843
• Languages: English
• ISSNs: 1862-6351

Abstract

Abstract: Optical properties of the Cu2 ZnGeS4 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 Cu2 ZnGeS4 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. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)