High-Quality Lead-Free Double Perovskite Single Crystals and their Optical Properties

The presented thesis deals with the investigation of the characteristic physical properties of lead-free double perovskites. For this purpose lead-free double perovskite single crystals were grown from solution. In order to assess the influence of growth temperature on tail states in the material, t...

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Bibliographic Details
Main Author:	Armer, Melina Brigitte Melanie
Format:	Dissertation
Language:	English
Published:	ProQuest Dissertations & Theses 01-01-2023
Subjects:	20th century Alternative Energy Atomic physics Climate Change Commercialization Condensed matter physics Crystal lattices Crystal structure Crystallization Electricity Energy consumption Fossil fuels Lead content Materials science Optical properties Optics Phase transitions Physical properties Physics Point defects Silicon Single crystals Solar energy Temperature effects Thin films Toxicity Toxicology
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Summary:	The presented thesis deals with the investigation of the characteristic physical properties of lead-free double perovskites. For this purpose lead-free double perovskite single crystals were grown from solution. In order to assess the influence of growth temperature on tail states in the material, the crystals were studied using Photoluminescence Excitation (PLE) and Transmission measurements. Additionally, lead-free double perovskite solar cells and thin films were investigated to address the correlation of precursor stoichiometry and solar cell efficiency. In a last step a new earth abundant lead-free double perovskite was introduced and its physical properties were studied by photoluminescene and absorptance. Like this it was possible to assess the suitability of this material for solar cell applications in the future.
ISBN:	9798381455076