Optical Properties and Microstructure of InGaN Grown by Molecular Beam Epitaxy

• Authors: T. Böttcher , S. Einfeldt , S. Figge , V. Kirchner , D. Hommel , H. Selke , P. Ryder , F. Bertram , T. Riemann , J. Christen , U. Lunz , C. Becker
• Languages of publication: EN

Abstracts

EN

The luminescence of In_{x}Ga_{1-x}N is studied for thick epitaxial layers and quantum wells. Using spatially resolved cathodoluminescence spectroscopy the commonly observed broad integral photoluminescence spectra were found to result from spectral and lateral inhomogeneous emission across the samples. Moreover, the integral photoluminescence and absorption spectra show different temperature dependences. The effects can be explained assuming fluctuations of the composition associated with a variation of the band gap.

Keywords

EN

68.35.Dv; 68.65.+g; 78.20.-e; 78.55.-m; 78.55.Cr

Discipline

• 78.55.Cr: III-V semiconductors
• 68.35.Dv: Composition, segregation; defects and impurities
• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)
• 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)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 2
• Pages: 260-264

Dates

published

1998-08

Contributors

author

T. Böttcher

• Institute of Solid State Physics, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

author

S. Einfeldt

• Institute of Solid State Physics, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

author

S. Figge

• Institute of Solid State Physics, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

author

V. Kirchner

• Institute of Solid State Physics, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

author

D. Hommel

• Institute of Solid State Physics, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

author

H. Selke

• Institute of Materials Physics and Structural Research, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

author

P. Ryder

• Institute of Materials Physics and Structural Research, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germany

author

F. Bertram

• Institute of Experimental Physics, University of Magdeburg, P.O. Box 4120, 39016 Magdeburg, Germany

author

T. Riemann

• Institute of Experimental Physics, University of Magdeburg, P.O. Box 4120, 39016 Magdeburg, Germany

author

J. Christen

• Institute of Experimental Physics, University of Magdeburg, P.O. Box 4120, 39016 Magdeburg, Germany

author

U. Lunz

• Institute of Experimental Physics III, University of Würzburg, Am Hubland 3, 97074 Würzburg, Germany

author

C. Becker

• Institute of Experimental Physics III, University of Würzburg, Am Hubland 3, 97074 Würzburg, Germany

Identifiers

DOI

10.12693/APhysPolA.94.260