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.

替代太阳能电池技术：牙也牙花碱（CDTE）太阳能电池为当前市场领先的基于硅的光伏（PV）模块提供了替代方案。 CDTE太阳能电池的材料成本较低，并且在SI生产过程中产生的CO2较少。这些模块现在正在大规模生产中，已经是每瓦最低的太阳能技术之一。但是，他们的持续发展受到未能改善产生的电压的限制。需要克服此限制，以便降低太阳能发电的每瓦成本，并有助于消除对补贴的光伏市场的需求。该奖学金旨在确定一种克服这一限制的方法。一种新的方法：改善太阳能细胞性能的标准方法是通过经验过程开发，优化了沉积条件和技术。该奖学金旨在通过使用强大的电容光谱技术来确定通往新工艺创新的路线来开发另一种方法。电容光谱允许识别CDTE太阳能电池电压损耗的电活动缺陷。通过监视与细胞生产和性能相关的这些缺陷的数量和位置，我们可以确定它们的来源及其影响。这允许确定大多数损害细胞性能的关键缺陷，从而可以开发过程创新以消除它们。通过这种由物理主导的细胞生产方法，我们可以克服CDTE太阳能电池中的电压限制。越来越多的影响：尽管该项目着重于CDTE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相似的局限性，并且可以从该研究金期间开发的技术的应用中受益。该项目所做的工作将使整个太阳能电池都受益。少校博士拥有与CDTE太阳能电池合作的十多年的经验，并且是该国领先的年轻PV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（Stephenson Institute for Renewable Energy）进行，这是一个跨学科研究中心，致力于可再生能源的许多方面。该奖学金提案具有三个关键目的； - 克服CDTE太阳能电池的电压限制。-建立电容光谱LED方法来实现太阳能电池开发。-加速了英国领先的年轻PV研究人员之一的职业发展。

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.

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.

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