Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2005, Vol. 28 ›› Issue (6): 57-60.doi: 10.13190/jbupt.200506.57.260

• Papers • Previous Articles     Next Articles

Finite Element Analysis on the Strain Field of 2×2 Array Self-Organized Quantum Dots

YANG Hongbo1,2 ，YU Zhongyuan1,3 ，LIU Yumin1,3   

  1. 1School of Science，Beijing University of Posts and Telecommunications, Beijing 100876, China; 2School of Science, Tianjin University, Tianjin 300072, China； 3Key Laboratory of Communication and Lightwave Technologies Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2005-12-28 Published:2005-12-28

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Abstract:

The elastic strain fields in the 2×2 array self-organized coherent quantum dots (QD) structures were investigated in detail by the finite element analysis for lens QDs. Strains of quantum dots array along different directions at different height in QDs were presented. Conclusions show that the strain of QD will not be influenced by the other of the QDs array when the size is similar to the distances between the QDs in the array.

Key words: quantum dots array, finite element method； strain field distribution

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