Functional characterization of lead-free hybrid perovskite materials and solar cells

无铅杂化钙钛矿材料和太阳能电池的功能表征

• 批准号: 2447858
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2447858
• 关键词: Functional; characterization; lead; free; hybrid

Project aim is to elucidate of quantitative structure-function relationships that exist in novel tin perovskite photoactive layers, which can then be used to form a design criteria to fabricate absorbers for high efficiency solar cells. He will use a range of advanced optical and structural characterization techniques to probe interfacial charge transfer processes as a function of materials and interface morphology. Specifically, optical probes such as laser-based transient absorption, time-correlated single photon counting and femtosecond upconversion spectroscopy will be used to directly interrogate (in real time) the kinetics of charge separation and recombination. These studies will be complemented by electron microscopy and XPS to probe film morphology and the nature of defects within the films. He hopes to principally develop skills in solution-based fabrication as well hands-on experience in using optical and structural probes discussed herein.

项目的目的是阐明存在于新型锡钙钛矿光活性层中的定量结构-功能关系，然后可用于形成设计标准，以制造高效太阳能电池的吸收剂。他将使用一系列先进的光学和结构表征技术来探测界面电荷转移过程作为材料和界面形态的函数。具体而言，光学探针，如基于激光的瞬态吸收，时间相关的单光子计数和飞秒上转换光谱将被用来直接询问（在真实的时间）的动力学的电荷分离和重组。这些研究将补充电子显微镜和XPS探测膜形态和膜内缺陷的性质。他希望主要发展基于解决方案的制造技能，以及使用本文讨论的光学和结构探针的实践经验。