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Carbon-based Solar Cell with different Configuration of the Layers

Motevalian, Saeme | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 53661 (07)
  4. University: Sharif University of Technology
  5. Department: Materials Science and Engineering
  6. Advisor(s): Mohammadi, Mohammad Reza; Seyyed Reyhani, Morteza
  7. Abstract:
  8. Last generation of solar cells which are organo-metal halide perovskite solar cells (PSCs) with power conversion efficiency over 20% are increasingly comparable to the silicon types, these PSCs are poorly stable under working environment. Carbon-based PSCs with lower cost and more stability seem a better choice for commercialization in future. In these PSCs TiO2 and NiO are working as electron and hole transporting materials, respectively. In addition, ZrO2 film between two mentioned layers works as a buffer layer to prevent direct contact. In this thesis, the initial powder, necessary for fabricating the buffer layer is synthesized at the first place. Then, since the printing method is a practical way in deposition of different layer in carbon-based perovskite solar cells, we made the paste from the synthesized powders with optimal properties, in viscosity and deposition. After that, we are going to find optimal thickness of ETL and HTL to enhance the photovoltaic properties, and then because the energy level of GO is suitable to bring it in HTL, in the next part of project we are going to consider different configuration of layers with total configuration of FTO/TiO2/ZrO2/NiO/GO/C. Furthermore, it is well accepted that the 2D-Pervoskites in comparison with 3D perovskite are more stable. However, because of their 2D structure they have lower efficiency. Therefore, in this project we have applied a 2D-3D structure for the perovskite layer to obtain both efficiency and stability. The fabricated perovskite in this project is 5-AVAI(5%)-MAPbI3 which is dissolved in GBL
  9. Keywords:
  10. Solar Cells ; Stability ; Perovskite ; Perovskite-Based Solar Cell ; Carbon-Based Perovskite Solar Cells (PSCs) ; Layers Arrangement Modes ; Film Coating

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