Capacitance spectroscopy led process innovations to improve VOC in CdTe thin film solar cells

电容光谱引领工艺创新，改善 CdTe 薄膜太阳能电池中的 VOC

• 批准号: EP/N014057/1
• 负责人: Jonathan Major
• 金额: $ 103.22万
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN014057%2F1
• 关键词: Capacitance; spectroscopy; led; process; innovations

An alternative solar cell technology: Cadmium telluride (CdTe) solar cells offer an alternative to the current market leading Silicon based photovoltaic (PV) modules. CdTe solar cells have lower materials costs and generate less CO2 during production that Si. These modules are now in mass production and are already one of the lowest cost-per-watt solar technologies. Their continued development is however being limited by a failure to improve the generated voltage. This limit needs to be overcome in order reduce the cost per watt of power generation from solar and help end the need for a subsidised PV market. This fellowship seeks to identify a way to overcome this limitation.A new methodology: The standard way to improve solar cell performance is through empirical process developments, optimising deposition conditions and techniques. This fellowship seeks to develop a different approach by using powerful capacitance spectroscopy techniques to identify routes to new process innovations. Capacitance spectroscopy allows electrically active defects, which are the cause of the voltage loss in CdTe solar cells, to be identified. By monitoring the number and position of these defects, linked to cell production and performance, we can identify both their source and their impact. This allows the key defects which most harm cell performance to be determined and thus process innovations to eliminate them can be developed. Through this physics-led approach to cell production we can overcome the voltage limitation in CdTe solar cells.Wider impact: Whilst this project focuses on CdTe solar cells, the methodology established will have wider implications. There are a number of other solar cell technologies that have similar limitations and can benefit from the application of the techniques developed during this fellowship. The work undertaken in this project will benefit an entire generation of solar cells.The research team: The fellowship applicant Dr Jon Major will lead the research team working on the project. Dr Major has over ten years' experience working with CdTe solar cells and is one of the country's leading young PV researchers. The project will be carried out at the University of Liverpool's Stephenson Institute for Renewable Energy, a cross-disciplinary research centre working on numerous aspects of renewable energy. This fellowship proposal has three key aims;- Overcome the voltage limitation in CdTe solar cells.- Establish a capacitance spectroscopy led approach to solar cell development.- Accelerate the career progression of one of the UK's leading young PV researchers.

另一种太阳能电池技术：碲化镉(CdTe)太阳能电池为目前市场领先的硅基光伏(PV)组件提供了替代方案。与硅相比，镉镉太阳能电池具有更低的材料成本和更少的生产过程中产生的二氧化碳。这些组件现在正在批量生产，已经是每瓦成本最低的太阳能技术之一。然而，由于未能改善产生的电压，它们的持续发展受到了限制。需要克服这一限制，以降低太阳能发电的每瓦特成本，并帮助结束对补贴光伏市场的需求。该奖学金旨在找到一种克服这一限制的方法。一种新的方法：提高太阳能电池性能的标准方法是通过经验工艺开发，优化沉积条件和技术。该奖学金寻求开发一种不同的方法，通过使用强大的电容光谱技术来确定新工艺创新的途径。电容谱可以识别电活性缺陷，这是导致镉镉太阳能电池电压损失的原因。通过监测这些缺陷的数量和位置，与细胞生产和性能有关，我们可以确定它们的来源和影响。这使得能够确定对电池性能危害最大的关键缺陷，从而可以开发出消除这些缺陷的工艺创新。通过这种以物理为主导的电池生产方法，我们可以克服镉镉太阳能电池的电压限制。更广泛的影响：虽然这个项目专注于镉镉太阳能电池，但建立的方法将具有更广泛的影响。还有许多其他太阳能电池技术具有类似的限制，可以从在该研究金期间开发的技术的应用中受益。该项目所开展的工作将造福整个一代太阳能电池。研究团队：奖学金申请者乔恩·梅杰博士将领导研究团队进行该项目的工作。梅杰博士有十多年的镉镉太阳能电池工作经验，是该国领先的年轻光伏研究人员之一。该项目将在利物浦大学的斯蒂芬森可再生能源研究所进行，这是一个致力于可再生能源诸多方面的跨学科研究中心。这项奖学金提议有三个关键目标：-克服镉镉太阳能电池的电压限制。-建立一种以电容光谱为主导的太阳能电池开发方法。-加快英国一位领先的年轻光伏研究人员的职业发展。

项目成果

Regimes of current transport mechanisms in CdS/CdTe solar cells

• DOI: 10.1088/1361-6641/ab23b5
• 发表时间: 2019-06
• 期刊: Semiconductor Science and Technology
• 影响因子: 1.9
• 作者: H. Bayhan;E. T. Dağkaldıran;J. Major;K. Durose;M. Bayhan

Self-Catalyzed CdTe Wires.

• DOI: 10.3390/nano8050274
• 发表时间: 2018-04-25
• 期刊: Nanomaterials (Basel, Switzerland)
• 作者: Baines T;Papageorgiou G;Hutter OS;Bowen L;Durose K;Major JD
• 通讯作者: Major JD

Band gap temperature-dependence of close-space sublimation grown Sb2Se3 by photo-reflectance

• DOI: 10.1063/1.5027157
• 发表时间: 2018-08-01
• 期刊: APL MATERIALS
• 影响因子: 6.1
• 作者: Birkett, Max;Linhart, Wojciech M.;Veal, Tim D.
• 通讯作者: Veal, Tim D.

How the amount of copper influences the formation and stability of defects in CdTe solar cells

• DOI: 10.1016/j.solmat.2019.110228
• 发表时间: 2020-01-01
• 期刊: SOLAR ENERGY MATERIALS AND SOLAR CELLS
• 影响因子: 6.9
• 作者: Artegiani, Elisa;Major, Jonathan D.;Romeo, Alessandro
• 通讯作者: Romeo, Alessandro

Incorporation of CdSe layers into CdTe thin film solar cells

• DOI: 10.1016/j.solmat.2018.03.010
• 发表时间: 2018-06-15
• 期刊: SOLAR ENERGY MATERIALS AND SOLAR CELLS
• 影响因子: 6.9
• 作者: Baines, Tom;Zoppi, Guillaume;Major, Jonathan D.
• 通讯作者: Major, Jonathan D.