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Light Induced Curing of TiO2 Mesoporous Layer Utilized in Perovskite Solar Cells

Zamanpour, Fahimeh | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51351 (04)
  4. University: Sharif University of Technology
  5. Department: Physics
  6. Advisor(s): Taghavinia, Nima
  7. Abstract:
  8. The efficiencies of perovskite solar cells have increased rapidly in recent years and reached about 22%. Which hopes to make this type of solar cell more functional. In the normal structure of perovskite solar cells, the presence of mesoporous TiO2 mesoporous layer has increased sustainability and efficiency. To create this layer, a common method is placing the sample in a furnace for 30 minutes at 450°C-500°C. Using the furnace, in addition to being time consuming, has a high energy consumption. In this study, we tried to create a TiO2 mesoporous layer with the help of lighting. To create TiO2 mesoporous layer, What causes porosity in the layer is the removal of ethyl cellulose and create bonding between TiO2 nanoparticles. For this purpose, we used two methods, the method of illumination with halogen lamp and the radiation of light with a mercury-vapor lamp with a temperature of 150°C. In order to test the thick layer of TiO2 paste was put on the surface with Dr.Blade’s method And in both methods, we saw the process of removing ethyl cellulose. In the next step, we created solar cells that their TiO2 Mesoporous Layer had formed by light irradiation with a halogen lamp and a mercury-vapor lamp with a heater at 150 °C. The efficiency of the soalr cells were made with halogen lamp (15.40%) and mercury-vapor lamp(14.16%) is comparable to the common cells that were made with furnace (15.90%). It is also achieved in the halogen lamp to the higher efficiency than a furnace that is common.
    The creation of solar cells with lighting by a mercury lamp with heating at 150°C is considered low temperature, which means that we will be able to make flexible cells on the ITO/ PEN substrate
  9. Keywords:
  10. Perovskite-Based Solar Cell ; Mesoporous Titanium Dioxide ; Ethil Cellulose ; Mercury Lamp ; Halogen Lamp

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