Interfaces, Stability and Energy Efficiency: Photo-chemical Characterisation of Perovskites for Printable Photovoltaics

界面、稳定性和能源效率：可印刷光伏发电钙钛矿的光化学表征

• 批准号: 2136203
• 金额: --
• 依托单位: Swansea University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2136203
• 关键词: Interfaces; Stability; Energy; Efficiency; Photo

This project aims to investigate the photochemistry of perovskites to better understand their performance and degradation behaviour, particularly in printable perovskite devices. To assess the environmental impact of lead-based perovskites and investigate methods to reduce this impact. The main focus of reducing the lead impact is to account for all the lead at end-of-life and thus the project is aiming to systematically determine the lead content of devices before and after manufacturing and after multiple re-manufacturing cycles with UV/Vis, fluorescence spectroscopy and microwave plasma-atomic emission spectroscopy. The work also involving tuning the deposition of the perovskite material to understand the effect of deposition (i.e. 1 step vs 2-step deposition) on the degradation and the subsequent re-manufacture to determine the "re-manufacturability" of devices. The ultimate aim is to understand how re-manufacturing cycles affects the fundamental properties of the perovskite material, how many times the material can by cycled and to determine standardised protocol for doing so with accounting for all the lead in the system and ensuring no lead leeching from devices. For the studies on remanufacturing the photophysical properties of the film are studied with UV/Vis and steady state and time resolved fluorescence measurements and the morphology is monitored with XRD.

该项目旨在研究钙钛矿的光化学，以更好地了解其性能和降解行为，特别是在可打印的钙钛矿设备中。评估铅基钙钛矿对环境的影响，并研究减少这种影响的方法。减少铅影响的主要重点是在寿命终止时计算所有铅，因此该项目旨在使用UV/维斯、荧光光谱和微波等离子体原子发射光谱系统地确定制造前后以及多次再制造周期后器械的铅含量。这项工作还涉及调整钙钛矿材料的沉积，以了解沉积（即1步与2步沉积）对降解和随后的再制造的影响，以确定设备的“可再制造性”。最终目的是了解再制造周期如何影响钙钛矿材料的基本特性，材料可以循环多少次，并确定标准化的协议，以考虑系统中的所有铅并确保没有铅从设备中流失。对于再制造的研究，用UV/维斯和稳态和时间分辨荧光测量研究了膜的物理性质，并用XRD监测了形貌。