Anisotropic CuInSe_(2) nanocrystals: synthesis, optical properties and their effect on photoelectric response of dye-sensitized solar cell

• A.I. Abdel-Salam ^[1] ; M. Mohsen Abdelaziz ^[2] ; A.N. Emam ^[4] ; A.S. Mansour ^[2] ; A.A.F. Zikry ^[3] ; M.B. Mohamed ^[2] ; Y.H.Elbashar ^[2]
  1. [1] British University in Egypt

     British University in Egypt

     Egipto

     
  2. [2] Cairo University

     Cairo University

     Egipto

     
  3. [3] National Research Centre

     National Research Centre

     Egipto

     
  4. [4] National Research Centre (NRC), Cairo, Egypt / Cairo University Giza, Egypt

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• Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 66, Nº. 1, 2020, págs. 14-22
• Idioma: inglés
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• Resumen

  • CuInSe_(2) I-III-VI_(2) ternary is a semiconductor considered very good efficient solar energy conversion material. An organometallic pyrolysis method is used to prepare monodisperse CuInSe_(2) nanoparticles using a mixture of oleylamine, and trioctylphosphine, as capping materials. The particle shape changes to dot, rods or flowers occur via varying the reaction temperatures (160, 200, 220◦C) respectively. The obtained particles have been characterized to determine the shape and size of CuInSe_(2) nanoparticles using HR-TEM and XRD. The optical and electronic properties of these particles have been investigated and discussed in detail. Then the different shapes of CuInSe_(2) nanoparticles (nanodots, nanorods, and nanoflowers) were introduced to the dye-sensitized solar cell to study their effect on the optical switching properties. It was found that the nanoflowers provide better photovoltaic performance than the other shapes; since it reduces the settling time to 50 milliseconds after it was more than 17 seconds before adding CuInSe_(2) nanoparticles to the cells.