Effects of bulk and surface defects in germanium on the performance of multijunction solar cells

锗体和表面缺陷对多结太阳能电池性能的影响

• 批准号: 417609-2011
• 负责人: Arès, Richard
• 金额: $ 1.82万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=494605
• 关键词: Effects; bulk; surface; defects; germanium

As the new technology for high performance solar cells keeps improving, the demand for top quality single crystal germanium material is increasing steadily. The materials suppliers are under pressure to provide products with good crystal quality, uniform and accurate doping levels, and flat, clean surfaces. 5N Plus is a supplier of such products and the company is striving to exceed these requirements. The manufacturing of such germanium wafers is a process that necessitates a deep understanding of the properties of the material, as well as powerful measurement tools to analyze the product and assess its quality. Furthermore, the photovoltaic cells that are produced with such materials are complex and the relationship between the germanium quality and purity and their performance is not well understood. This project will investigate this relationship. Through a close collaboration between 5N Plus production team and Université de Sherbrooke semiconductor experts, a detailed study of the properties of 5N Plus germanium will be performed. Simple solar cell structures will be fabricated using the material. The performance of such devices will be measured and analyzed to identify its link with any deviation from the required specifications.

随着高性能太阳能电池新技术的不断进步，对优质单晶锗材料的需求稳步增长。 材料供应商面临着提供具有良好晶体质量、均匀准确的掺杂水平以及平坦、清洁表面的产品的压力。 5N Plus 是此类产品的供应商，该公司正在努力超越这些要求。 制造此类锗晶片的过程需要深入了解材料的特性，以及强大的测量工具来分析产品并评估其质量。 此外，用这种材料生产的光伏电池很复杂，并且锗的质量和纯度与其性能之间的关系尚不清楚。 本项目将调查这种关系。 通过5N Plus生产团队与舍布鲁克大学半导体专家的密切合作，将对5N Plus锗的特性进行详细研究。 将使用该材料制造简单的太阳能电池结构。 将测量和分析此类设备的性能，以确定其与所需规格的任何偏差的链接。