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.

该项目旨在调查钙钛矿的光化学，以更好地了解其性能和降解行为，尤其是在可打印的钙钛矿设备中。评估基于铅的钙钛矿的环境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说明生命终止时的所有铅，因此该项目的目的是系统地确定制造前后的设备的铅含量，以及多次使用UV/VIS，荧光光谱和微波血浆原子 - 原子 - 原子发射光谱法进行了多个重新制造周期。这项工作还涉及调整钙钛矿材料的沉积，以了解沉积的影响（即1步vs 2步沉积）对降解和随后的重新制造，以确定设备的“可重建性”。最终的目的是了解重建周期如何影响钙钛矿材料的基本特性，通过循环材料可以进行多少次材料的次数，并确定标准化的协议，以考虑到系统中的所有铅，并确保没有设备的铅铅。为了进行有关再制造膜的光物理特性的研究，以紫外线和稳态和时间分辨的荧光测量结果进行了研究，并用XRD监测形态。