CAREER: Research and Education in Development of Organic Spintronics Based on Spin Injection and Modification of Spin-Orbital Coupling in Magnetic Organic Light-Emitting Diodes

本职业计划主要从事磁性有机发光二极管（oled）中基于自旋注入和自旋轨道耦合修饰的有机自旋电子学的研究和教育。本课题的目标是发展一种利用磁场控制有机半导体器件激发态过程和电荷输运的新方法。智力优势：综合研究将解决两个关键挑战：自旋极化电荷注入和利用纳米点铁磁电极和可溶性有机材料混合修饰磁性oled的自旋轨道耦合。自旋极化电荷注入和自旋轨道耦合修饰将用于控制磁场相关电荷输运和自旋相关激子动态过程。研究将集中在三个至关重要的基本问题上：纳米级铁磁/有机异质结的自旋输运，自旋轨道耦合依赖的磁电阻，以及基于磁性有机有机发光二极管的自旋注入产生的激子的协同相互作用，以促进有机自旋电子学的发展。更广泛的影响：拟议的职业项目对研究和教育有两个更广泛的影响。研究影响包括利用纳米点铁磁电极的自旋注入和有机材料混合的自旋轨道耦合修饰来控制激发态过程和电荷输运的新方法的发展。提出的研究将增加对有机半导体器件中自旋输运和自旋相关激子过程的批判性理解。这一新的认识将极大地促进磁性有机发光、磁性激光和磁性光伏器件在国防和能源技术中的应用。教育方面的影响包括课程开发、学生指导、少数民族和妇女的参与，以及通过利用PI的经验和与田纳西大学现有工程学院多样性和外展项目的具体项目互动，向专注于磁性有机半导体器件的工程学科教育的高中生开展外展活动。

This career proposal focuses on the research and education in the development of organic spintronics based on spin injection and modification of spin-orbital coupling in magnetic organic light-emitting diodes (OLEDs). The goal of this career project is to develop a novel approach to control the excited state processes and charge transport in organic semiconductor devices by using magnetic field. Intellectual Merit: The integrated research will address two critical challenges: spin-polarized charge injection and modification of spin-orbital coupling in magnetic OLEDs by using nano-dot ferromagnetic electrodes and soluble organic materials mixing. Spin-polarized charge injection and modification of spin-orbital coupling will be used to control magnetic field-dependent charge transport and spin-dependent exciton dynamic processes. The investigations will focus on three critically important fundamental issues: spin transport across nanoscale ferromagnetic/organic heterojunction, spin-orbital-coupling dependent magnetoresistance, and cooperative interaction of spin injection-generated excitons based on magnetic organic OLEDs for the development of organic spintronics.Broader Impact: The proposed career project has two broader impacts on research and education. The research impact includes the development of new approach to control excited state processes and charge transport by using both spin injection from nano-dot ferromagnetic electrodes and modification of spin-orbital coupling from organic materials mixing. The proposed studies will increase the critical understanding of spin transport and spin-dependent excitonic processes in organic semiconductor devices. The new understanding will largely contribute to the development of magnetic organic light-emitting, magnetic lasing, and magnetic photovoltaic devices in the applications of national defense and energy technologies. The educational impact includes the curriculum development, student mentoring, minority and women involvement, and outreach activities to high school students in the education of engineering disciplines with concentration in magnetic organic semiconductor devices through using the PI's experience and project-specific interaction with existing College of Engineering diversity and outreach programs at the University of Tennessee.