Optical and Structural Properties of Zn_{1-x}Be_{x}Se Mixed Crystals

• Authors: F. Firszt , S. Łęgowski , H. Męczyńska , J. Szatkowski , J. Zakrzewski , W. Paszkowicz , J. Domagała , M. Marczak
• Languages of publication: EN

Abstracts

EN

Optical and structural properties of Zn_{1-x}Be_{x}Se bulk crystals in the range of composition 0 ≤ x ≤ 0.41 have been studied. These crystals were grown by Bridgman method under an argon overpressure. Transmission, absorption, photoluminescence and photoacoustic spectra as a function of composition were investigated. It has been found that the crystal structure is of sphalerite type. The crystal quality increases when the crystallization process of the same boule is performed more than once. In the investigated composition range the lattice constant decreases and the energy gap increases with increasing beryllium content. From photoluminescence measurements the excitonic energy gap about 3.64 eV at 40 K was estimated for the highest obtained Be concentration (x=0.41).

Keywords

EN

78.55.Et; 78.20.-e; 62.65.+k

Discipline

• 78.55.Et: II-VI semiconductors
• 78.20.-e: Optical properties of bulk materials and thin films(for optical properties related to materials treatment, see 81.40.Tv; for optical materials, see 42.70-a; for optical properties of superconductors, see 74.25.Gz; for optical properties of rocks and minerals, see 91.60.Mk; for optical properties of specific thin films, see 78.66.-w)
• 62.65.+k: Acoustical properties of solids

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 2
• Pages: 309-312

Dates

published

1998-08

Contributors

author

F. Firszt

• Institute of Physics, N. Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

S. Łęgowski

• Institute of Physics, N. Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

H. Męczyńska

• Institute of Physics, N. Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

J. Szatkowski

• Institute of Physics, N. Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

J. Zakrzewski

• Institute of Physics, N. Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

W. Paszkowicz

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

J. Domagała

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

M. Marczak

• The State Mint, Pereca 21, 00-958 Warsaw, Poland

Identifiers

DOI

10.12693/APhysPolA.94.309