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Thin film - perovskite tandem structures

薄膜-钙钛矿串联结构

基本信息

批准号：
2880817
负责人：
金额：
--
依托单位：
Northumbria University
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2880817
关键词：
Thin film perovskite tandem structures

项目摘要

Photovoltaics (PV) solar cells are one of the key technologies to realise a decarbonised economy and to date > 1 TW of PV systems have been installed globally. However, it is estimated that > 20 TW of PV capacity alone is needed by 2050. While costs have come down dramatically, the PV module cost is typically less than half that of the total system with limited opportunities to further reduce the balance of systems cost. Therefore, the best way to drive the overall costs down is by increasing the module conversion efficiency. Multi-junction (tandem) solar cells (excluding III-V semiconductors) are offering the next breakthrough opportunity for mainstream terrestrial applications with the prominent solution currently based on the combination of silicon (making use of existing manufacturing capabilities) with perovskite achieving a power conversion efficiency of > 29 %.Opportunities for thin film based tandem devices remain high due to their low fabrication costs, lightweight and flexible nature making them ideally suited for building integrated PV and mobile devices. State-of-the-art thin film/perovskite devices are approaching ~ 26 % efficiency. This project will focus on key technological aspects of the thin film-perovskite tandem structure:1. Alternative transparent layer(s) in both the perovskite and thin film cell to reduce film roughness and allow for large flexible devices.2. Investigate alternative ultra-thin bottom cell (variable bandgap).3. Lift-off methods for transferable and inverted structures.

光伏(PV)太阳能电池是实现脱碳经济的关键技术之一，到目前为止，全球已安装了1TW的光伏系统。然而，据估计，到2050年，仅光伏发电能力就需要20太瓦。虽然成本已经大幅下降，但光伏组件的成本通常不到整个系统的一半，进一步降低系统成本余额的机会有限。因此，降低总成本的最好方法是提高模块转换效率。多结(串联)太阳能电池(不包括III-V半导体)为主流的地面应用提供了下一个突破性的机会，目前基于硅(利用现有制造能力)和钙钛矿相结合的突出解决方案实现了29%的功率转换效率。基于薄膜的串联器件的机会仍然很大，因为它们制造成本低，重量轻，性质灵活，非常适合建造集成的光伏和移动设备。最先进的薄膜/钙钛矿型器件的效率接近26%。本项目将集中在薄膜-钙钛矿串联结构的关键技术方面：1.在钙钛矿和薄膜电池中使用替代透明层(S)，以减少薄膜粗糙度，并允许大型柔性器件。研究替代超薄底部电池(可变带隙)。可转换结构和倒置结构的提离方法。