Title of article
Contribution to quantitative measurement of the In composition in GaN/InGaN multilayers
Author/Authors
S. Kret، نويسنده , , G. Maciejewski، نويسنده , , P. Dluzewski، نويسنده , , P. Ruterana، نويسنده , , N. Grandjean، نويسنده , , B. Damilano)، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2003
Pages
4
From page
273
To page
276
Abstract
The In composition is investigated in GaN/InGaN multi-quantum wells (QWs) by measurement of the local lattice distortion in high-resolution electron microscopy (HREM) images taken along the [1 1 2̄ 0] zone axis by image processing. The direct peak-finding procedure is more adequate for analysing images taken in the [1 1 2̄ 0] zone axis in comparison with the geometric-phase method since the information from different beams must be averaged. The finite element (FE) modelling and image simulation were combined in order to determine the error bars of the composition evaluation.
Keywords
Strain measurement , Finite element modelling , Quantum wells , InGaN , HREM
Journal title
Materials Chemistry and Physics
Serial Year
2003
Journal title
Materials Chemistry and Physics
Record number
1061592
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