CAREER: Heavy Metal Complexes as Triplet Absorbers for Organic Photovoltaics

职业：重金属配合物作为有机光伏的三线态吸收剂

• 批准号: 0748867
• 负责人: Jian Li
• 金额: $ 59万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-03-01 至 2014-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0748867&HistoricalAwards=false
• 关键词: CAREER; Heavy; Metal; Complexes; Triplet

This CAREER award in the Inorganic, Bioinorganic and Organometallic Chemistry program supports Professor Jian Li at Arizona State University to develop a range of stable metal-complex and polymeric materials as active materials for photovoltaic applications. The proposed metal-complex absorbers will be designed to have extended absorption spectra, resulting in an improved matching to the solar source, and modified exciton properties of organic absorbers due to the incorporation of metal ions, which will lead to long exciton diffusion lengths in the materials. Specific research aims include: (1) synthesizing novel organic/organometallic compounds and studying their photophysical and electrochemical properties; (2) measuring the charge mobility and exciton diffusion length of the proposed materials, and correlating the structural changes of materials and properties of organic thin films; (3) studying the mechanisms and processes of charge transport and energy transfer in the organic solids; (4) achieving organic photovoltaic cells with 10% power conversion efficiency or higher at the end of this program. This research directly addresses some critical challenges in improving the power conversion efficiency of organic solar cells. Students working on this project will learn modern organic synthesis, device physics and engineering, as well as materials and device characterization. The educational aims include: (1) developing an educational module on solar electricity to reach a large number of K-8 students and teachers (over 20,000 per year); (2) outreach to local high schools by providing summer mentorship and creating educational modules for high school advanced-placement classes. The educational module, Solar Electricity, will be integrated with current existing Science is Fun program. This program trains undergraduate interns to visit more than 70 schools annually and give several hundred presentations to over 20,000 students and teachers. Educational outreach will target key underrepresented groups, including minority as well as female students.

该职业生物，生物有机和有机金属化学计划的职业奖支持亚利桑那州立大学的Jian Li教授，开发了一系列稳定的金属复合物和聚合物材料，作为用于光伏应用的活性材料。所提出的金属复合物吸收器将设计为具有扩展的吸收光谱，从而改善了与太阳能源的匹配，并且由于金属离子的结合而导致有机吸收剂的改性激子特性，这将导致材料中长的激子扩散长度。 具体研究的目的包括：（1）合成新颖的有机/有机金属化合物并研究其光物理和电化学性能； （2）测量拟议材料的电荷迁移率和激子扩散长度，并将有机薄膜的材料和性能的结构变化相关联； （3）研究有机固体中电荷运输和能量转移的机制和过程； （4）在该程序结束时，以10％功率转换效率或更高的有机光伏细胞实现有机光伏细胞。这项研究直接解决了提高有机太阳能电池的功率转换效率方面的一些关键挑战。从事该项目的学生将学习现代有机合成，设备物理和工程以及材料和设备表征。教育目的包​​括：（1）开发一个有关太阳能电力的教育模块，以吸引大量的K-8学生和老师（每年超过20,000）； （2）通过提供暑期指导并为高中高中高中课程创建教育模块，向当地高中提供宣传。教育模块太阳能电力将与当前现有科学娱乐计划集成。该计划训练本科实习生每年访问70多所学校，并向20,000多名学生和老师进行数百次演讲。教育宣传将针对主要代表性不足的团体，包括少数群体和女学生。