| 报告题目 | Magneto-optic, magneto-electric, and magneto-thermoelectric effects developed by intermolecular excited states in organic semiconducting materials |
| 报告人 | Prof. Bin Hu |
| 报告人单位 | University of Tennessee, USA |
| 报告时间 | 2013-10-23 |
| 报告地点 | 合肥微尺度物质科学国家实验室九楼会议室 |
| 主办单位 | 合肥微尺度物质科学国家实验室 |
| 报告介绍 | Abstract:
Inter-molecular excited states are essentially inter-molecular electron-hole pairs with tunable electric and magnetic dipoles in organic semiconducting materials. It has been experimentally observed that inter-molecular excited states are sensitive to a low magnetic field (< 100 mT), leading to a magnetic field-dependent singlet/triplet ratio. Because the singlets and triplets have distinctly different optic, electric, and thermoelectric properties, magnetic field-dependent singlet/triplet ratio in intermolecular excited states can effectively exhibit spintronic effects. Therefore, intermolecular excited states have become a very encouraging research area towards magnetic control of optic, electric, and thermoelectric effects. We have found that inter-molecular excited states can exhibit an intrinsic coupling between electric permittivity and magnetic permeability. The intrinsic coupling between permittivity and permeability presents an essential mechanism to realize magneto-optic, magneto-electronic, and magneto-thermoelectric effects by using inter-molecular excited states. This presentation will discuss the recent progress and key issues in organic spintronics developed by inter-molecular excited states. |
