Modeling miniband for realistic silicon nanocrystal array

Weiguo Hu, Mohd Fairuz Budiman, Makoto Igarashi, Ming Yi Lee, Yiming Li, Seiji Samukawa*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Within the envelop-function framework, we developed the finite element method to calculate the minibands in the realist Silicon nanocrystal array. This method clearly reveals the miniband formation and accurately calculates the E-. K dispersion relationship. In the simple 1D array, the deduced miniband structure matches well with the analytic Kronig-Penney method. More importantly, it can better simulate the 2D and 3D nanocrystal array, which avoids approximations of the quantum cubic box and the independent periodic potential of the multi-dimension Kronig-Penney method. Further, this model is utilized to calculate miniband structure of realistic 2D-array Silicon nanodisk array for guiding quantum dot solar cell design.

Original languageEnglish
Pages (from-to)306-311
Number of pages6
JournalMathematical and Computer Modelling
Volume58
Issue number1-2
DOIs
StatePublished - 1 Jul 2013

Keywords

  • Finite element method
  • Miniband
  • Quantum dot solar cell

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