Photovoltaics in Nanoscale Ferroelectric Films

纳米级铁电薄膜中的光致发光提案号：ECCS 0943711。摘要该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。这一探索性工作的目的是研究纳米铁电薄膜的光伏效应。这种方法是为了证明更高的光伏转换效率的太阳能电池制成的纳米铁电薄膜。与传统的Si太阳能电池相比，在传统的Si太阳能电池中，在结处有限的电荷传输限制了电池的PV转换效率;该效应本质上是铁电体中的体效应。这种属性使得纳米铁电薄膜的一个很好的选择，为这样的应用程序，仍然是未开发的data.Intellectual MeritEnhanced光伏效应在纳米铁电薄膜将被证明与潜在的更高的光伏转换效率的太阳能电池从这些材料。 这项工作可以铺平道路，为未来的研究方向，在光电子学的基础上，纳米铁电体。 这项活动将导致在photochemics和其他光学应用的纳米铁电薄膜，可用于未来的设备的研究数据，结合铁电，电子和光学功能的这种材料。更广泛的影响这一努力将有助于新的知识在处理，表征和理解的运输性能负责光伏效应的纳米铁电薄膜。所获得的知识将有更广泛的应用研究界在类似的铁电系统的应用过程。教育计划是将拟议的研究结果纳入研究生/本科生水平的铁电体课程。该项目将影响学生准备他们的劳动力，以及研究生学习/先进的研究纳米铁电基光电子学。研究结果将通过会议和期刊论文向研究界传播。将开展一项涉及学生，包括少数民族学生，从小学到研究生的强有力的外联活动。

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.