EAPSI: Anion Binding Directed Supramolecular Donor-Acceptor Assemblies for Photoinduced Charge Separa

EAPSI：用于光生电荷分离的阴离子结合定向超分子供体-受体组件

• 批准号: 1613957
• 负责人: Whitney Webre
• 金额: $ 0.54万
• 依托单位: Webre Whitney A
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-15 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1613957&HistoricalAwards=false
• 关键词: EAPSI; Anion; Binding; Directed; Supramolecular

Solar energy is an excellent renewable energy source because of the near unlimited amount of solar radiation that reaches the Earth's surface. An avenue towards improved solar generation is the development of solar cells that employ copycat systems based on photosynthesis. The research will involve design, syntheses, and characterization of electron donor-acceptor hybrids where light energy can be stored in the form of radical ion-pairs. The work will be conducted in collaboration with Dr. Jonathan Hill at the National Institute of Materials Science (NIMS) in Tsukuba, Japan. The collaboration provides direct access to unique techniques available at NIMS. Development of renewable energy sources is a matter of major scientific and social importance, and this project will have a positive impact on renewable solar energy harvesting.Research on renewable energy is essential due to the limited fossil energy resources and environmental problems they continue to generate. Converting solar energy into electricity or fuel using donor-acceptor systems, Nature?s way of harvesting light energy, has gained much interest in recent years. In this project, the development of novel self-assembled via anion binding donor-acceptor conjugates comprised of metalloporphyrin and oxoporphyrinogen as wide band capturing light energy harvesting systems will by synthesized in Dr. Hill's laboratory at NIMS. The syntheses, characterization, spectroscopic and electrochemical studies will be performed at NIMS and photoinduced electron transfer leading to charge separation in the newly developed conjugates will be investigated using time-resolved emission and transient absorption techniques at the University of North Texas under Dr. Francis D'Souza after the program is completed.This award under the East Asia and Pacific Summer Institutes program supports summer research by a U.S. graduate student and is jointly funded by NSF and the Japan Society for the Promotion of Science.

太阳能是一种极好的可再生能源，因为到达地球表面的太阳辐射量几乎是无限的。改进太阳能发电的一个途径是开发采用基于光合作用的模仿系统的太阳能电池。 该研究将涉及电子供体-受体杂化物的设计、合成和表征，其中光能可以以自由基离子对的形式存储。这项工作将与日本筑波国家材料科学研究所 (NIMS) 的 Jonathan Hill 博士合作进行。 通过此次合作，可以直接访问 NIMS 提供的独特技术。可再生能源的开发具有重大科学和社会意义，该项目将对可再生太阳能采集产生积极影响。由于化石能源资源有限，且不断产生环境问题，因此对可再生能源的研究至关重要。使用供体-受体系统将太阳能转化为电力或燃料，这是大自然获取光能的方式，近年来引起了人们的广泛兴趣。 在该项目中，由金属卟啉和氧化卟啉原组成的新型自组装阴离子结合供体-受体缀合物作为宽带捕获光能收集系统的开发将在 NIMS 的 Hill 博士实验室进行合成。合成、表征、光谱和电化学研究将在 NIMS 进行，光致电子转移导致新开发的缀合物中的电荷分离将在北德克萨斯大学 Francis D 博士的指导下使用时间分辨发射和瞬态吸收技术进行研究项目完成后的“Souza”。该奖项属于东亚及太平洋夏季研究所项目，支持美国研究生的夏季研究，由美国国家科学基金会和日本科学振兴会共同资助。