CAREER: Metamorphic Wide-Bandgap Semiconductors: Materials Fundamentals for High-Efficiency Photovoltaics

职业：变质宽带隙半导体：高效光伏的材料基础

• 批准号: 0955916
• 负责人: Minjoo Lee
• 金额: $ 55.08万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-05-01 至 2016-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0955916&HistoricalAwards=false
• 关键词: CAREER; Metamorphic; Wide; Bandgap; Semiconductors

Technical: This project addresses fundamental relationships between epitaxial crystal growth conditions, microstructure, and properties in wide-bandgap (Eg =2.2 to 2.3eV) metamorphic InGaP, to create high-efficiency, multi-junction solar cells. The approach involves epitaxial growth studies, structural characterization, optical/electrical/interfacial properties determination, solar cell fabrication, and modeling the impact of materials properties on solar cell performance. Non-technical: This project addresses basic research issues in a topical area of materials science with high technological relevance. If successful, this project could lead to the realization of 60% efficient multijunction solar cells, transforming the economics of photovoltaic electricity for terrestrial use and leading to reduced greenhouse gas emissions. The educational component includes creation of new interdisciplinary learning opportunities at the undergraduate, graduate, and K-12 levels, and aims for increasing the participation of under-represented groups in science and engineering. Long term educational goals are: to increase the diversity of tomorrow's materials scientists and electrical engineers by providing interdisciplinary training and mentoring to both women and under-represented minorities, and to place the current generation's passion for energy issues onto a firm, physics-based foundation. The PI has recruited a diverse research group at Yale and created a new course, 'Photovoltaic Energy.' The course is enhanced through the implementation of a novel set of homework problems and the creation of an intensive laboratory component where students learn to fabricate, test, and design solar cells. In addition, the PI proposes a new K-12 teacher mentoring program focused around the annual New Haven science fair.

技术支持：该项目旨在解决宽带隙（Eg =2.2至2.3eV）变质InGaP中外延晶体生长条件，微观结构和性能之间的基本关系，以创建高效率，多结太阳能电池。该方法涉及外延生长研究，结构表征，光学/电学/界面特性测定，太阳能电池制造，以及模拟材料特性对太阳能电池性能的影响。非技术性：该项目涉及材料科学领域的基础研究问题，具有高技术相关性。如果成功，该项目可能导致实现60%效率的多结太阳能电池，改变陆地使用光伏发电的经济性，并减少温室气体排放。教育部分包括在本科生、研究生和K-12级别创造新的跨学科学习机会，旨在增加代表性不足的群体对科学和工程的参与。长期教育目标是：通过为妇女和代表性不足的少数民族提供跨学科培训和指导，增加明天材料科学家和电气工程师的多样性，并将当代对能源问题的热情置于坚实的物理基础之上。PI在耶鲁大学招募了一个多元化的研究小组，并开设了一门新课程，“光伏能源”。“这门课程通过实施一套新颖的家庭作业问题和创建一个密集的实验室组件来增强，学生可以学习制造，测试和设计太阳能电池。此外，PI还提出了一个新的K-12教师指导计划，重点是每年的纽黑文科学博览会。