Photovoltaics in Nanoscale Ferroelectric Films

纳米级铁电薄膜中的光伏发电

• 批准号: 0943711
• 负责人: Sushma Kotru
• 金额: $ 15.23万
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0943711&HistoricalAwards=false
• 关键词: Photovoltaics; Nanoscale; Ferroelectric; Films

Photovoltaics in Nanoscale Ferroelectric FilmsProposal no: ECCS 0943711.Abstract This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The objective of this exploratory effort is to investigate photovoltaic effects in nanoscale ferroelectric films. The approach is to demonstrate higher photovoltaic conversion efficiency in solar cells made from nanoscale ferroelectric films. Compared to the conventional Si solar cells where the limited charge transport at the junction constrains the PV conversion efficiency of the cell; the effect is essentially a bulk-effect in ferroelectrics. This property makes nanoscale ferroelectric films an excellent choice for such applications which remain unexploited to date.Intellectual MeritEnhanced photovoltaic effects in nanoscale ferroelectric films will be demonstrated with the potential for higher photovoltaic conversion efficiencies in solar cells made from these materials. This work could pave the way for future research directions in photovoltaics based on nanoscale ferroelectrics. This activity will lead to research data in photovoltaics and other optical applications for nanoferroelectric films that can be used in future devices, combining the ferroelectric, electronic and optical functionalities of such materials.Broader ImpactThis effort will contribute to new knowledge in processing, characterization and understanding of the transport properties responsible for photovoltaic effects in nanoscale ferroelectric films. The knowledge gained will have broader applications for the research community in applying processes to similar ferroelectric systems. The education plan is to incorporate results from the proposed research in a graduate/undergraduate level course on ferroelectrics. The project will impact students by preparing them for the workforce as well as for graduate study/advanced research on nanoferroelectric based photovoltaics. Results will be disseminated to the research community through conferences and journal papers. A strong outreach activity involving students, including minority student, from elementary age to graduate level will be conducted.

纳米级铁电薄膜中的光伏技术提案编号：ECCS 0943711。 摘要 该奖项由 2009 年美国复苏和再投资法案（公法 111-5）资助。这项探索性工作的目的是研究纳米级铁电薄膜中的光伏效应。该方法旨在证明由纳米级铁电薄膜制成的太阳能电池具有更高的光伏转换效率。与传统的硅太阳能电池相比，结点处有限的电荷传输限制了电池的光伏转换效率；该效应本质上是铁电体中的体效应。这一特性使纳米级铁电薄膜成为迄今为止尚未开发的此类应用的绝佳选择。 智力优点纳米级铁电薄膜中增强的光伏效应将通过由这些材料制成的太阳能电池中更高光伏转换效率的潜力得到证明。 这项工作可以为基于纳米级铁电体的光伏技术的未来研究方向铺平道路。 这项活动将产生纳米铁电薄膜的光伏和其他光学应用的研究数据，这些数据可用于未来的设备，结合此类材料的铁电、电子和光学功能。更广泛的影响这项工作将有助于在处理、表征和理解纳米级铁电薄膜中光伏效应的输运特性方面产生新的知识。所获得的知识将为研究界在将工艺应用于类似的铁电系统方面提供更广泛的应用。该教育计划旨在将拟议研究的结果纳入铁电体研究生/本科水平课程中。该项目将影响学生，帮助他们为就业以及纳米铁电光伏发电的研究生学习/高级研究做好准备。结果将通过会议和期刊论文传播给研究界。将开展一项涉及从小学到研究生的学生（包括少数民族学生）的强有力的外展活动。