Atomic Engineering of Conjugated Polymers for High Performance Photovoltaic Cells.

高性能光伏电池共轭聚合物的原子工程。

• 批准号: 1410088
• 负责人: Malika Jeffries-EL
• 金额: $ 36.6万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-05-01 至 2016-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1410088&HistoricalAwards=false
• 关键词: Atomic; Engineering; Conjugated; Polymers; Performance

TECHNICAL SUMMARY. Due to their unique combination of semiconducting and polymer processing properties, conjugated polymers are being explored both academically and commercially for use in organic electronic applications. Two important benefits of these materials are the opportunity to optimize their optical and electronic properties for specific applications through synthesis and the chance to reduce the cost of electronic device manufacturing through the use of solution processing techniques. Although a number of different conjugated polymers have been synthesized, only a few have exhibited high efficiencies in organic photovoltaic cells. Furthermore, many of these are based on complex combinations of heterocycles that are difficult to synthesize. The vision and goals of this project are to develop new polymers based on benzodichalocogenophenes, a class of heterocycles that includes benzo[1,2-b:4,5-b']dithiophene, which has been used in copolymers for high performing organic photovoltaic cells. Furthermore, these building blocks can be easily synthesized in a few high yielding steps from low-cost starting materials and are readily customized. This project will (i) evaluate the impact of atomic engineering on the materials properties; (ii) investigate the physical, optical, and electronic properties of the materials through spectroscopic measurements and performance in organic photovoltaic cells; (iii) provide interdisciplinary research experiences for both undergraduate and graduate students, and (iv) foster interest in polymer science through a creative outreach effort targeting female and underrepresented minority students at all educational levels.NON-TECHNICAL SUMMARY. Synthetic polymers are being widely developed as replacements for natural materials. While these new polymers cannot precisely duplicate the properties of naturally occurring materials, they can be modified at the atomic level to afford materials with different and potentially improved properties. For electronic applications, semiconducting polymers that rival inorganic-based materials are readily prepared. Furthermore, it is possible to alter their properties through chemical synthesis, prepare a large amount of material under moderate conditions, and fabricate large-area films using solution-processing techniques such as inkjet printing. All of these can significantly reduce the cost of polymer-based solar cells. This award will (i) support research intended to increase basic knowledge for designing and producing conducting polymers with optimized properties for use in "plastic" solar cells; (ii) provide interdisciplinary research experiences for both undergraduate and graduate students, and (iii) foster interest in polymer science through a creative outreach effort targeting female and underrepresented minority students at all educational levels.

技术摘要。由于它们独特的半导体和聚合物加工特性的组合，在学术和商业上探索了共轭聚合物，以用于有机电子应用。这些材料的两个重要好处是通过合成来优化其光学和电子特性的机会，并有机会通过使用解决方案处理技术来降低电子设备制造的成本。尽管已经合成了许多不同的共轭聚合物，但只有少数在有机光伏细胞中表现出很高的效率。此外，其中许多是基于难以合成的杂环的复杂组合。该项目的视野和目标是开发基于苯二算算基烯的新聚合物，这是一类杂环，其中包括苯并[1,2-B：4,5-B']二硫氰酸酯，在共聚物中已用于高性能的有机光伏细胞。此外，这些构建块可以轻松地从低成本起始材料的几个高产步骤中合成，并且很容易自定义。该项目将（i）评估原子工程对材料属性的影响； （ii）通过有机光伏细胞中的光谱测量和性能研究材料的物理，光学和电子特性； （iii）为本科生和研究生提供跨学科的研究经验，以及（iv）通过针对女性和代表性不足的少数族裔学生在所有教育水平上的创造性推广努力来促进对聚合物科学的兴趣。合成聚合物正在广泛开发，以替代天然材料。尽管这些新聚合物不能精确地复制天然材料的性能，但可以在原子水平上修改它们，以负担具有不同且可能改善特性的材料。 对于电子应用，很容易准备与基于无机材料相抗衡的半导体聚合物。此外，可以通过化学合成来改变其性质，在适度条件下准备大量材料，并使用溶液处理技术（例如喷墨打印）制造大面积膜。所有这些都可以显着降低聚合物基太阳能电池的成本。该奖项将（i）支持研究，旨在增加设计和生产具有优化特性的导电聚合物的基础知识，以用于“塑料”太阳能电池中； （ii）通过针对女性和代表性不足的少数族裔学生在所有教育水平上的创造性外展工作，为大学生和研究生提供跨学科研究经验，以及（iii）促进对聚合物科学的兴趣。