| Autor: |
Kai‐Hong Hsieh, Yuan‐Zhen Zhuang, Jing‐Xiang Huang, Zheng‐Yu Wei, Yong‐Yun Zhang, Jiun‐Haw Lee, Tien‐Lung Chiu, Man‐kit Leung |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Advanced Photonics Research, Vol 5, Iss 10, Pp n/a-n/a (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2699-9293 |
| DOI: |
10.1002/adpr.202300344 |
| Popis: |
Three carbazole‐substituted anthracene 2CbzAn, 26CbzAn, and 246CbzAn have been developed. The introduction of these carbazole substituents could generate more triplet states with energy levels close to 2× E(T1) that could successfully facilitate the triplet‐triplet annihilation upconversion (TTA‐UC) process to achieve high upconversion quantum yield (UCQY). This observation aligns with the Adachi theory about TTA‐UC mechanisms. In organic light‐emitting diode (OLED) device investigation, in a non‐doped state show an external quantum efficiency (EQEmax) of 5.82% with exceptional pure‐blue emission (CIEy of 0.101), and the DPaNIF doped DMPPP/26CbzAn bilayer structure reaches an impressive EQEmax of 11.12%. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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