Browsing by Author "Budiman, Mohd Fairuz"

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Modeling miniband for realistic silicon nanocrystal array
(2013-07-01)
Hu, Weiguo
;
Budiman, Mohd Fairuz
;
Igarashi, Makoto
;
Lee, Ming-Yi
;
Li, Yiming
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. (C) 2012 Elsevier Ltd. All rights reserved.