双光电子有机场效应装置:电光发光和光敏度的组合
Vasiliy A Trukhanov1, Andrey Y Sosorev1,2, Dmitry I Dominskiy1,2
1Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1/62, Moscow 119991, Russia.
Molecules (Basel, Switzerland)
|June 19, 2024
概括
研究人员开发了一种多功能有机场效应晶体管 (OFET),它结合了光发射和光电效应. 这种有机半导体材料对先进的显示器和光传感器件显示出前途.
科学领域:
- 有机电子学有机电子学
- 光电子器件是指光电子设备.
- 半导体材料是一种半导体材料.
背景情况:
- 将有机场效应晶体管 (OFET) 与光辐射或光电效应合并可以增强显示和光传感技术.
- 多功能有机半导体是开发高效光电子设备的关键.
研究的目的:
- 通过使用一种新型有机半导体,证明具有电光发射 (EL) 和光电能力的多功能OFET.
- 为了研究特定的六环 thiophene-phenylene co-oligomer (TPCO) 对光电子应用的潜力.
主要方法:
- 对六环 thiophene-phenylene co-oligomer (TPCO) 的计算和实验研究.
- 基于TPCO的有机场效应晶体管 (OFET) 的制造和表征.
主要成果:
- TPCO材料具有很大的振荡器强度,高效的发光,非局部化的兴奋状态和平衡的电荷传输.
- 制造的OFET显示出同时发生的光电反应 (波长<530nm) 和电光发射 (峰值在570nm).
- 实现了EL外部量子效率 (EQE) ~1.4%和光电反应率 ~0.7 A W-1.1.
结论:
- 研究的TPCO是多功能有机光电子设备的一个有希望的材料.
- 预计结果将推动有机 (光) 电子新材料的设计,并扩大其应用.
相关概念视频
Photoluminescence: Fluorescence and Phosphorescence
2.0K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
A pair of electrons in a...
2.0K
Photochemical Electrocyclic Reactions: Stereochemistry
1.8K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Selection Rules: Photochemical Activation
1.8K


