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Further optical properties of CdX (X=S, Te) compounds under quantum dot diameter effect: Ab initio method

Author

Listed:
  • Al-Douri, Y.
  • Baaziz, H.
  • Charifi, Z.
  • Khenata, R.
  • Hashim, U.
  • Al-Jassim, M.

Abstract

For energy band calculations, the indirect energy gap (Γ−X) is calculated using density functional theory (DFT) of the full potential-linearized augmented plane wave (FP-LAPW) method as implemented in WIEN2K code. The Engel–Vosko generalized gradient approximation (EV-GGA) formalism is used to optimize the corresponding potential for energetic transition and optical properties calculations of CdS and CdTe as a function of quantum dot diameter and is used to test the validity of our model of quantum dot potential. The results are compared with others and showed reasonable agreement.

Suggested Citation

  • Al-Douri, Y. & Baaziz, H. & Charifi, Z. & Khenata, R. & Hashim, U. & Al-Jassim, M., 2012. "Further optical properties of CdX (X=S, Te) compounds under quantum dot diameter effect: Ab initio method," Renewable Energy, Elsevier, vol. 45(C), pages 232-236.
    • Handle: RePEc:eee:renene:v:45:y:2012:i:c:p:232-236
    DOI: 10.1016/j.renene.2012.02.020
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    References listed on IDEAS

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    1. Badescu, Viorel & Badescu, Alina Mihaela, 2009. "Improved model for solar cells with up-conversion of low-energy photons," Renewable Energy, Elsevier, vol. 34(6), pages 1538-1544.
    2. Liu, Zhifeng & Liu, Chengcheng & Ya, Jing & Lei, E., 2011. "Controlled synthesis of ZnO and TiO2 nanotubes by chemical method and their application in dye-sensitized solar cells," Renewable Energy, Elsevier, vol. 36(4), pages 1177-1181.
    3. Das, Narayan Ch. & Sokol, Paul E., 2010. "Hybrid photovoltaic devices from regioregular polythiophene and ZnO nanoparticles composites," Renewable Energy, Elsevier, vol. 35(12), pages 2683-2688.
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