Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes
Organic light-emitting diodes (OLEDs) have great potential for display, lighting, and near-infrared (NIR) applications due to their outstanding advantages such as high efficiency, low power consumption, and flexibility. Recently, it has been found that the ultrathin emitting nanolayer technology pla...
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sg-ntu-dr.10356-1647762023-02-28T20:11:58Z Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes Xu, Ting Fu, Jianhui Wang, Xinzhong Lu, Guanhua Liu, Baiquan School of Physical and Mathematical Sciences Science::Physics Film Growth Interface Exciplexes Organic light-emitting diodes (OLEDs) have great potential for display, lighting, and near-infrared (NIR) applications due to their outstanding advantages such as high efficiency, low power consumption, and flexibility. Recently, it has been found that the ultrathin emitting nanolayer technology plays a key role in OLEDs with simplified structures through the undoped fabricated process, and exciplex-forming hosts can enhance the efficiency and stability of OLEDs. However, the elementary structure and mechanism of the energy transfer process of ultrathin emitting nanolayers within interface exciplexes are still unclear. Therefore, it is imminently needed to explore the origin of ultrathin emitting nanolayers and their energy process within exciplexes. Herein, the mechanism of films growing to set ultrathin emitting nanolayers (<1 nm) and their energy transfer process within interface exciplexes are reviewed and researched. The UEML phosphorescence dye plays a key role in determining the lifetime of excitons between exciplex and non-exciplex interfaces. The exciplex between TCTA and Bphen has longer lifetime decay than the non-exciplex between TCTA and TAPC, facilitating exciton harvesting. The findings will be beneficial not only to the further development of OLEDs but also to other related organic optoelectronic technologies. Published version This work was supported by the Open Project Funding of State Key Laboratory of Surface Physics and Department of Physics, Fudan University, China, (KF2019_13) and the Open Project Funding of Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, China. (KJS1908). This work was supported in part by the National Natural Science Foundation of China under Grant 62104265, in part by the Science and Technology Program of Guangdong Province under Grant 2021A0505110009, and in part by the Innovation and Technology Fund under Grant GHP/006/20GD. 2023-02-14T02:12:42Z 2023-02-14T02:12:42Z 2022 Journal Article Xu, T., Fu, J., Wang, X., Lu, G. & Liu, B. (2022). Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes. Frontiers in Chemistry, 10, 887900-. https://dx.doi.org/10.3389/fchem.2022.887900 2296-2646 https://hdl.handle.net/10356/164776 10.3389/fchem.2022.887900 35494648 2-s2.0-85128755295 10 887900 en Frontiers in Chemistry © 2022 Xu, Fu, Wang, Lu and Liu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. application/pdf |
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Science::Physics Film Growth Interface Exciplexes Xu, Ting Fu, Jianhui Wang, Xinzhong Lu, Guanhua Liu, Baiquan Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes |
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Organic light-emitting diodes (OLEDs) have great potential for display, lighting, and near-infrared (NIR) applications due to their outstanding advantages such as high efficiency, low power consumption, and flexibility. Recently, it has been found that the ultrathin emitting nanolayer technology plays a key role in OLEDs with simplified structures through the undoped fabricated process, and exciplex-forming hosts can enhance the efficiency and stability of OLEDs. However, the elementary structure and mechanism of the energy transfer process of ultrathin emitting nanolayers within interface exciplexes are still unclear. Therefore, it is imminently needed to explore the origin of ultrathin emitting nanolayers and their energy process within exciplexes. Herein, the mechanism of films growing to set ultrathin emitting nanolayers (<1 nm) and their energy transfer process within interface exciplexes are reviewed and researched. The UEML phosphorescence dye plays a key role in determining the lifetime of excitons between exciplex and non-exciplex interfaces. The exciplex between TCTA and Bphen has longer lifetime decay than the non-exciplex between TCTA and TAPC, facilitating exciton harvesting. The findings will be beneficial not only to the further development of OLEDs but also to other related organic optoelectronic technologies. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Xu, Ting Fu, Jianhui Wang, Xinzhong Lu, Guanhua Liu, Baiquan |
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Article |
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Xu, Ting Fu, Jianhui Wang, Xinzhong Lu, Guanhua Liu, Baiquan |
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Xu, Ting |
title |
Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes |
title_short |
Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes |
title_full |
Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes |
title_fullStr |
Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes |
title_full_unstemmed |
Understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes |
title_sort |
understanding the structure and energy transfer process of undoped ultrathin emitting nanolayers within interface exciplexes |
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2023 |
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https://hdl.handle.net/10356/164776 |
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1759855067208351744 |