Discovery of new lead-free inorganic materials for photovoltaic applications

发现用于光伏应用的新型无铅无机材料

• 批准号: 2599723
• 金额: --
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2599723
• 关键词: Discovery; new; lead; free; inorganic

The aim is to discover new solar harvesting materials through the design and synthesis of new inorganic solids coupled with advanced structural analysis (crystallography) and physical property measurement. Recent breakthroughs in lead-based perovskites show the importance of new absorbers, but materials such as the hybrid perovskite methyl ammonium lead triiodide have unsolved problems associated with stability, sustainability and toxicity. This project builds on our recent discovery of a new family of lead-free absorbers with distinct structures. You will explore and understand the new halide and chalcogenide solid state chemistry of closed shell, non-toxic, earth abundant elements, discovering and characterising new absorbers, and thus developing a new materials approach to this problem. We collaborate closely with leading groups in condensed matter physics and device manufacture to allow rapid evaluation of the new materials in applications.The project will combine synthetic solid-state chemistry, advanced structural analysis (crystallography) and measurement of physical properties, with the opportunity to focus on one or more of these aspects during the project. The targeted new materials contain key structural features known to be important in optimising solar absorber behaviour, such as close-packed halide lattices. You will develop skills in materials synthesis, including air-sensitive techniques and solution processing, and in structural characterisation by X-ray diffraction (laboratory and synchrotron) and optical and electronic spectroscopy. Promising materials will be processed into simple photovoltaic devices with our collaborators to relate properties and performance with structure and composition.

其目的是通过设计和合成新的无机固体，结合先进的结构分析（晶体学）和物理性质测量，发现新的太阳能收集材料。铅基钙钛矿的最新突破显示了新吸收剂的重要性，但混合钙钛矿甲基铵三碘化铅等材料存在与稳定性，可持续性和毒性相关的未解决问题。该项目建立在我们最近发现的具有不同结构的无铅吸收剂的新家族的基础上。您将探索和理解封闭壳，无毒，地球丰富元素的新卤化物和硫属化物固态化学，发现和表征新的吸收剂，从而开发解决这个问题的新材料方法。我们与凝聚态物理和器件制造领域的领先团队密切合作，以快速评估新材料的应用。该项目将结合联合收割机合成固态化学、高级结构分析（晶体学）和物理性能测量，并有机会在项目期间专注于其中一个或多个方面。目标新材料包含已知在优化太阳能吸收剂行为方面重要的关键结构特征，例如紧密堆积的卤化物晶格。您将开发材料合成方面的技能，包括空气敏感技术和溶液处理，以及通过X射线衍射（实验室和同步加速器）以及光学和电子光谱学进行结构表征。有前途的材料将与我们的合作者一起加工成简单的光伏器件，将性能和性能与结构和成分联系起来。