Ong, Guang-Liang and Zhang, Qiang and Ong, Teng-Sian and Kek, Reeson and Nee, Chen-Hon and Tou, Teck-Yong and Liaw, Der-Jang and Yap, Seong-Ling and Yap, Seong-Shan (2021) Enhanced performance of blue OLED with water/alcohol soluble conjugated polymer as electron injection layer. Synthetic Metals, 272. ISSN 0379-6779, DOI https://doi.org/10.1016/j.synthmet.2020.116658.
Full text not available from this repository.Abstract
In this work, a water/alcohol-soluble conjugated polymer poly (9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dih exylfluorene)] (PFNC6) is synthesized and the photophysical properties are investigated. Subsequently, it is tested as electron injection layer in a blue emitting OLED with PFO. The maximum current efficiency (CE) and external quantum efficiency (EQE) of the device increased by 3 times to 0.75 cd/A and 0.66%. Further enhancement in the OLED performance is obtained when a bilayer electron injection consisting of PFNC6 and LiF are used where the maximum CE is 2.16 cd/A and the maximum EQE is 1.55%. Measurement with electron-only-devices confirmed that the electron mobility is increased for the device with PFNC6 as compared to the control device. Furthermore, higher V-bi is obtained in photovoltaic measurement when PFNC6 is used. As a result, the electron injection barrier is reduced and electron injection is more efficient.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia[FRGS/1/2019/STG07/MMU/02/1], Ministry of Science and Technology of Taiwan (MOST) |
| Uncontrolled Keywords: | OLED; Water/alcohol soluble conjugated polymer;Electron injection layer;Electron injection barrier;Interface dipole; Spin coating |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 16 Jun 2022 04:45 |
| Last Modified: | 16 Jun 2022 04:45 |
| URI: | http://eprints.um.edu.my/id/eprint/34240 |
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