Spectroscopic ellipsometry and photoluminescence investigation of Zn 1– x  – y   Be  x   Mg  y   Se and Cd 1– x  – y   Be  x   Zn  y   Se crystals | Zendy

Wronkowska A. A. | Zendy; Skowroński Ł. | Zendy; Wronkowski A. | Zendy; Firszt F. | Zendy; Me¸czyńska H. | Zendy; Łe¸gowski S. | Zendy; Strzałkowski K. | Zendy; Arwin H. | Zendy

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Spectroscopic ellipsometry and photoluminescence investigation of Zn 1– x – y Be x Mg y Se and Cd 1– x – y Be x Zn y Se crystals

Author(s) -

Wronkowska A. A.,

Skowroński Ł.,

Wronkowski A.,

Firszt F.,

Me¸czyńska H.,

Łe¸gowski S.,

Strzałkowski K.,

Arwin H.

Publication year - 2008

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200777775

Subject(s) - photoluminescence , ellipsometry , absorption edge , luminescence , analytical chemistry (journal) , photon energy , materials science , band gap , absorption (acoustics) , dielectric function , dielectric , refractive index , spectral line , optics , chemistry , thin film , optoelectronics , photon , physics , nanotechnology , chromatography , astronomy , composite material

Optical and luminescence properties of the Bridgman‐grown Cd 1– x – y Be x Zn y Se and Zn 1– x – y Be x Mg y Se crystals are reported. Spectroscopic ellipsometry was employed for determination of spectral dependence of the complex dielectric function $ \tilde \epsilon $ ( E ) in the photon energy range 0.75–6.5 eV. Below the absorption edge the refractive indices n ( E ) of the alloys were modelled using a Sellmeier‐type relation. The excitonic band‐gap energies were estimated from the ellipsometric and photoluminescence measurements. Compositional effects in the ellipsometric and photoluminescence spectra are discussed. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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