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

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几乎是无限的。改善太阳能发电的一条途径是开发利用光合作用模仿系统的太阳能电池。该研究将涉及电子供体-受体杂化体的设计、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）的乔纳森·希尔博士合作进行。该合作提供了对NIMS可用的独特技术的直接访问。可再生能源的开发是一个具有重大科学和社会重要性的问题，该项目将对可再生太阳能的收集产生积极影响。可再生能源的研究是必要的，因为有限的化石能源资源和环境问题，他们继续产生。利用供体-受体系统将太阳能转化为电能或燃料，自然？这是一种收集光能的方法，近年来引起了人们的极大兴趣。在这个项目中，由金属卟啉和氧卟啉原组成的新型自组装阴离子结合供体-受体偶联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。该项目完成后，将在北德克萨斯大学Francis D'Souza博士的指导下，利用时间分辨发射和瞬态吸收技术，对新开发的共轭物进行光致电子转移导致电荷分离的合成、表征、光谱和电化学研究。该奖项隶属于东亚和太平洋暑期研究所项目，由美国国家科学基金会和日本科学促进会共同资助，支持一名美国研究生进行暑期研究。

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.