Exploration of lead-free perovskite materials for photovoltaic applications

Abstract

The work demonstrated in the thesis entitled "Exploration of Lead-Free Perovskite Materials for Photovoltaic Applications" was initiated in July 2019 in the Department of Chemistry, Indian Institute of Technology Indore. The objectives of this thesis are to design and fabrication of lead-free perovskite materials and further explore them for photovoltaic applications. Objectives and Scope The thesis work focuses on the following key points- 1. Synthesis of Antimony and Bismuth based halide perovskite as a light absorber material for photovoltaic application. 2. Utilization of advanced characterization techniques to analyze the physiochemical and optoelectronic properties of the synthesized perovskite materials. 3. Controlling the rapid growth and the morphology of the light absorber. 4. Fabrication of electrodes for photovoltaic devices. The thesis is divided into six chapters, the first of which introduces a few types of perovskite materials. A summary of energy consumption and the need for sustainable energy sources opens the literature review, which is then followed by information on the history, composition, and characteristics of perovskite materials. Discussions on various perovskite material synthesis techniques are then covered, along with the applications that halide perovskite have been explored. Lead-free perovskite materials and their utilization as light absorbers for photovoltaic applications are the main areas of focus. The synthesis process and its energy generation is covered in detail in later chapters.