Synthesis and Evalouation of photovoltaic Properties of Lead-halid Perovskite

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Nejadsalim, Aidin | 2016

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 50864 (07)
University: Sharif University of Technology
Department: Materials Science and Engineering
Advisor(s): Simchi, Abdolreza; Ashouri, Hossein
Abstract:
Organometal lead halides due to their interesting optical properties and convenient synthesis processing have attracted many attention recently. In this project, fabrication of lead halide perovskite solar cells through one-step deposition and two-step deposition with different holding time of PbI2 layers in various concentration of CH3NH3I solution as a second precursor within the ambient and glove box atmosphere has been studied. Structural, microscopic and photovoltaic properties of fabricated solar cells were evaluated. Moreover effect of delay time during PbI2 deposition on TiO2 mesoporous layer in performance of perovskite solar cell using Energy Dispersive Spectroscopy was studied. Using UV-Vis spectroscopy peak shifting relates to PbI2 was observed. In addition, peak height changes by XRD in different concentrations of CH3NH3I solution were studied. At the end morphology of perovskite layers using FESEM were investigated. In the project the highest efficiency of all fabricated solar cells was almost 7 %
Keywords:
Perovskite ; Perovskite-Based Solar Cell ; Photovoltaic Cell ; Mesoporous Titanium Dioxide ; Organometal Lead Halide Compounds

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