Magneto-Optical Studies of Charge dissociation, Transport, and Collection in Organic Solar Cells

本研究的目的是研究控制有机太阳能电池中施主-受主界面电荷解离、互穿施主和受主网络中的电荷传输和电极电荷收集的关键参数。这种方法是利用独特的磁光测量：光电流的磁场效应和光助介电响应作为有效的工具来阐明有机块状异质结系统的内部光电转换过程。其目标是加强材料工程和器件设计基本指南的开发，以开发高效有机太阳能电池。其智力优势包括使用独特的磁光测量来研究内部光伏过程，从而开发高效有机太阳能电池。独特的磁光测量：光电流的磁场效应和光辅助介电响应可以作为有效的工具来可视化？内部光伏过程中产生的光电流。对内部光伏过程的研究可以阐明控制有机太阳能电池中电荷解离、传输和收集过程中涉及的光电转换关键问题的关键参数。更广泛的影响包括通过课程开发、班级项目、少数族裔和女学生培训以及有机太阳能电池领域的外联活动将研究与教育结合起来。一方面，该项目可以对高效有机太阳能电池的研发产生影响。另一方面，通过与教育的融合，该项目可以加强可再生能源工程学科的高素质劳动力的准备，为我国社会的经济发展服务。

The objective of this research is to investigate the critical parameters in controlling charge dissociation at donor-acceptor interfaces, charge transport in interpenetrating donor and acceptor networks, and charge collection at electrodes in organic solar cells. The approach is to use unique magneto-optical measurements: magnetic field effects of photocurrent and light-assisted dielectric response as effective tools to elucidate internal light-electricity conversion processes in organic bulk-heterojunction systems. The goal is to enhance the development of fundamental guidelines for material engineering and device design to develop highly efficient organic solar cells.The intellectual merit includes the use of unique magneto-optical measurements for the investigation of internal photovoltaic processes towards the development of highly efficient organic solar cells. The unique magneto-optical measurements: magnetic field effects of photocurrent and light-assisted dielectric response can function as effective tools to ?visualize? the internal photovoltaic processes in the generation of photocurrent. The investigation of internal photovoltaic processes can elucidate the critical parameters to address critical issues involved in light-electricity conversion in controlling charge dissociation, transport, and collection processes in organic solar cells. The broader impact includes the integration of research with education through curriculum development, class projects, minority and female student training, and outreach activities in the area of organic solar cells. On one hand, this project can impact the research and development of highly efficient organic solar cells. On the other hand, through the integration with education this project can enhance the preparation of high-quality working forces in renewable energy-engineering disciplines for economic development in our society.