PFI-TT: Highly Flexible and Bendable Photovoltaic Module Architectures for Enhanced Usability

PFI-TT：高度灵活且可弯曲的光伏模块架构，增强可用性

• 批准号: 2016552
• 负责人: Michael Goryll
• 金额: $ 25万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2016552&HistoricalAwards=false
• 关键词: PFI; TT; Highly; Flexible; Bendable

The broader impact/commercial potential of this Partnerships for Innovation - Technology Translation (PFI-TT) project is the development of a flexible, bendable photovoltaic module technology that features the benefits of crystalline silicon, efficiency and long service lifetime, and a bending radius that is seven times smaller than the current state-of-the-art crystalline silicon module. The technology chosen enables a 25-year warranty on these modules, which is common for rigid solar panels. Bendable modules can be used where traditional rigid modules cannot because there is no space for mounting, the panel is too heavy for the supporting structure, the module will not withstand wind forces, or it is not aesthetically pleasing. The modules developed in this project will enable photovoltaic projects that were impossible previously, for example building-integrated photovoltaics or smart city infrastructure that features energy harvesting. The technology helps to grow the existing market of photovoltaic energy harvesting and opens new market opportunities. Non-rigid modules can be easily mounted to curved surfaces, making installation of these panels much easier and more attractive for recreational and even residential use.The proposed project seeks to develop thin silicon wafers that can be processed without causing breakage and defect, which could affect the reliability of the photovoltaic cells in the modules. Understanding the nature of defects and how defects are introduced in the manufacturing process is key to reducing waste and keeping manufacturing costs down, which will ultimately affect the module price. The goal is to identify issues in the production process and improve the manufacturing yield to levels common for thick silicon wafer processing, used in rigid solar panels. The trade-off between using mitigations like handle wafers and process tool modifications will be investigated. A second problem to be addressed is the reliability of electrical interconnects in flexible solar modules. Electrical interconnects in rigid panels are a common source of problems due to mechanical stress fractures. The team will investigate alternative electrical bus connections that are resilient to mechanical stress and have the added benefit of reducing silver resource consumption in solar modules. Environmental tests will be conducted to determine the reliability of these flexible and bendable modules to ensure a service life that is competitive with rigid crystalline silicon solar panels.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这种合作伙伴关系对创新 - 技术翻译（PFI-TT）项目的更广泛的影响/商业潜力是开发灵活的，可弯曲的光伏模块技术，其具有结晶硅的好处，效率和长期服务寿命，并且弯曲半径是当前现状的固有晶体晶体硅模块的七倍。所选的技术使这些模块具有25年的保修，这对于刚性太阳能电池板很常见。在传统的刚性模块无法安装的情况下，可以使用可弯曲的模块，因为没有安装空间，面板太重而无法进行支撑结构，模块将无法承受风力，或者在美学上不令人愉悦。该项目中开发的模块将实现以前不可能的光伏项目，例如建筑集成的光伏或智能城市基础设施，具有能源收获。该技术有助于发展现有的光伏能源收获市场，并为新的市场机会开放。非刚性模块可以轻松地安装到弯曲的表面上，使这些面板的安装变得更加容易，更具吸引力对于娱乐性甚至住宅用途。拟议的项目旨在开发可处理的薄硅晶片，而不会导致破裂和缺陷，这可能会影响模块中光伏电池的可靠性。了解缺陷的性质以及如何在制造过程中引入缺陷是减少浪费并使制造成本降低的关键，这最终将影响模块价格。目的是确定生产过程中的问题，并将制造产量提高到用于刚性太阳能电池板的厚硅晶片加工的常见水平。使用诸如手柄晶片之类的缓解和工具修改等缓解措施之间的权衡。要解决的第二个问题是柔性太阳能模块中电气互连的可靠性。刚性面板中的电互连是由于机械应力骨折而引起的问题的常见来源。该团队将研究对机械应力有弹性的替代电气总线连接，并具有减少太阳能模块中银资源消耗的额外好处。将进行环境测试以确定这些灵活和弯曲的模块的可靠性，以确保使用刚性晶体硅太阳能电池板具有竞争力的使用寿命。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来支持的。

项目成果

Introducing Suns-VR as an enhancement to Suns-V OC for Characterizing Photovoltaic Cells and Modules

推出 Suns-VR 作为 Suns-V OC 的增强功能，用于表征光伏电池和模块

• DOI: 10.1109/pvsc45281.2020.9300573
• 发表时间: 2020
• 期刊: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC
• 作者: Killam, Alexander;Bowden, Stuart
• 通讯作者: Bowden, Stuart

Monitoring of Photovoltaic System Performance Using Outdoor Suns-VOC

使用室外太阳-VOC 监测光伏系统性能

• DOI: 10.1016/j.joule.2020.11.007
• 发表时间: 2021
• 期刊: Joule
• 影响因子: 39.8
• 作者: Killam, Alexander C.;Karas, Joseph F.;Augusto, André;Bowden, Stuart G.
• 通讯作者: Bowden, Stuart G.

Studying edge losses in silicon heterojunction solar cells

• DOI: 10.1109/pvsc45281.2020.9300984
• 发表时间: 2020-01-01
• 期刊: 2020 47TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
• 作者: Balaji, Pradeep;Bowden, Stuart;Augusto, Andre
• 通讯作者: Augusto, Andre

Effect of annealing on interdigitated back contact silicon heterojunction solar cells(IBC)

退火对叉指背接触硅异质结太阳能电池（IBC）的影响

• DOI: 10.1109/pvsc43889.2021.9519124
• 发表时间: 2021
• 期刊: 2021 48th IEEE Photovoltaic Specialists Conference
• 作者: Rizi, Mansoure Moeini;Balaji, Pradeep;Dauksher, Bill;Augusto, Andre;Goodnick, Stephen;Honsberg, Christiana B.;Goryll, Michael
• 通讯作者: Goryll, Michael

Exploring the practical efficiency limit of silicon solar cells using thin solar-grade substrates

探索使用薄太阳能级基板的硅太阳能电池的实际效率极限

• DOI: 10.1039/d0ta04575f
• 发表时间: 2020
• 期刊: Journal of Materials Chemistry A
• 影响因子: 11.9
• 作者: Augusto, A.;Karas, J.;Balaji, P.;Bowden, S. G.;King, R. R.
• 通讯作者: King, R. R.