Chin. J. Semicond. > 2005, Volume 26 > Issue 12 > 2355-2362

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Influences of Differently Shaped Quantum Dots on Elastic Strain Field Distributions

Liu Yumin, Yu Zhongyuan, Yang Hongbo and Huang Yongzhen

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Abstract: Adopting the two-dimensional axis-symmetrical model,a systematic analysis of the elastic strain distribution of geometrically differently shaped quantum dots is conducted using the finite element method.The detailed results for the elastic strain distribution of lens,cylinder,pyramid,and cone-shaped quantum dots are given.These show that the shape of the quantum dot has obvious influences on both the normal and shear strain distributions,while not affecting the hydrostatic strain distributions.The hydrostatic strain distribution is almost the same in both the center axis and circumjacent path.The shear strain distributions are focused on the circumjacent path,and the extremas are located in the inflexion of the circumjacent path,while the other parts of the quantum dot,including the path along the center axis,have no shear strain.

Key words: strainquantum dotself-organizationlow dimension material

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    Received: 19 August 2015 Revised: Online: Published: 01 December 2005

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      Liu Yumin, Yu Zhongyuan, Yang Hongbo, Huang Yongzhen. Influences of Differently Shaped Quantum Dots on Elastic Strain Field Distributions[J]. Journal of Semiconductors, 2005, In Press. Liu Y M, Yu Z Y, Yang H B, Huang Y Z. Influences of Differently Shaped Quantum Dots on Elastic Strain Field Distributions[J]. Chin. J. Semicond., 2005, 26(12): 2355.Export: BibTex EndNote
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      Liu Yumin, Yu Zhongyuan, Yang Hongbo, Huang Yongzhen. Influences of Differently Shaped Quantum Dots on Elastic Strain Field Distributions[J]. Journal of Semiconductors, 2005, In Press.

      Liu Y M, Yu Z Y, Yang H B, Huang Y Z. Influences of Differently Shaped Quantum Dots on Elastic Strain Field Distributions[J]. Chin. J. Semicond., 2005, 26(12): 2355.
      Export: BibTex EndNote

      Influences of Differently Shaped Quantum Dots on Elastic Strain Field Distributions

      • Received Date: 2015-08-19

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