US-India Cooperative Research: Theory of Pi-Conjugated Photonic Materials

该奖项支持美印合作研究项目“π共轭光子材料理论”。来自亚利桑那大学的Sumitendra Mazumdar和班加罗尔印度科学研究所（IISc）的Suryanarayana Ramasesha将对π共轭低聚物和聚合物的光物理学进行理论研究。这些材料在光子学领域的应用引起了人们的极大兴趣。pi将研究共轭有机聚合物材料的光学性质，重点是解释实验结果，发展光物理过程的机制，并预测新材料的光学性质。目标是发展在有机发光二极管中重要的电荷转移和碰撞过程的综合理论，并发展一种能够计算低带隙聚合物能量的密度矩阵重整化技术。范围：该项目将DMR-0101659资助的研究扩展到Mazumdar，并继续与Ramasesha进行非常成功的合作。他们在有机发光二极管方面的研究成果今年发表在《自然》杂志上。PI是共轭聚合物激发态和光学性质领域的领先理论家。该研究有望导致对相关电子物理的更深入理解，并在有机半导体和低维相关电子系统的新概念和方法的发展方面取得重大进展。由于所研究的材料和方法的技术重要性，这项研究可能会在未来几年对这一快速发展领域的发展产生强烈影响。它扩大了DMR资助的研究，并为两国的学生和初级同事提供互惠互利。该项目由国际科学与工程办公室和材料研究部支持。在印度，它得到了科技部的支持。

0138051MazumdarDescription: This award supports the US-India cooperative research project entitled Theory of Pi-Conjugated Photonic Materials. The investigators, Sumitendra Mazumdar, University of Arizona and Suryanarayana Ramasesha, Indian Institute of Science (IISc), Bangalore will undertake theoretical studies on the photophysics of pi-conjugated oligomers and polymers. These materials are of high current interest for their applications in photonics. The PIs will study the optical properties of conjugated organic polymer materials with a focus on interpreting experimental results, developing mechanisms for photophysical processes, and predicting optical properties of new materials. The goals are to develop a comprehensive theory of charge-transfer and collision processes important in organic light emitting diodes and to develop a density matrix renormalization technique capable of calculating energies of low band gap polymers. Scope: This project extends research funded under grant, DMR-0101659 to Mazumdar and continues a highly successful collaboration with Ramasesha. Their work on organic light emitting diodes was published in Nature this year. The PI is a leading theorist in the area of excited states and optical properties of conjugated polymers. The research is expected to lead to greater understanding of correlated electron physics and to significant advances in the development of new concepts and methodologies for organic semiconductors and low dimensional correlated electron systems. Due to the technological importance of the materials and methodologies under study, this research is likely to strongly impact the development of this rapidly evolving field over the next few years. It extends DMR funded research and provides mutual benefits to students and junior colleagues in both countries. The project is supported by the Office of International Science & Engineering and the Division of Materials Research. In India, it is supported by the Department of Science and Technology.