Enhancing Triplet–Triplet Annihilation Upconversion Performance Through Anthracene–Carbazole Interactions for Organic Optoelectronic Applications

Kai‐Hong Hsieh; Yuan‐Zhen Zhuang; Jing‐Xiang Huang; Zheng‐Yu Wei; Yong‐Yun Zhang; Jiun‐Haw Lee; Tien‐Lung Chiu; Man‐kit Leung

doi:10.1002/adpr.202300344

Advanced Photonics Research (Oct 2024)

Enhancing Triplet–Triplet Annihilation Upconversion Performance Through Anthracene–Carbazole Interactions for Organic Optoelectronic Applications

Kai‐Hong Hsieh,
Yuan‐Zhen Zhuang,
Jing‐Xiang Huang,
Zheng‐Yu Wei,
Yong‐Yun Zhang,
Jiun‐Haw Lee,
Tien‐Lung Chiu,
Man‐kit Leung

Affiliations

Kai‐Hong Hsieh: Department of Chemistry National Taiwan University No. 1, Sec. 4, Roosevelt Road. Taipei 106319 Taiwan (R.O.C)
Yuan‐Zhen Zhuang: Graduate Institute of Photonics and Optoelectronics National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 106319 Taiwan (R.O.C.)
Jing‐Xiang Huang: Graduate Institute of Photonics and Optoelectronics National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 106319 Taiwan (R.O.C.)
Zheng‐Yu Wei: Graduate Institute of Photonics and Optoelectronics National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 106319 Taiwan (R.O.C.)
Yong‐Yun Zhang: Department of Chemistry National Taiwan University No. 1, Sec. 4, Roosevelt Road. Taipei 106319 Taiwan (R.O.C)
Jiun‐Haw Lee: Graduate Institute of Photonics and Optoelectronics National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 106319 Taiwan (R.O.C.)
Tien‐Lung Chiu: Department of Electrical Engineering Yuan Ze University No. 135, Yuandong Road Zhongli Dist. Taoyuan 320315 Taiwan (R.O.C.)
Man‐kit Leung: Department of Chemistry National Taiwan University No. 1, Sec. 4, Roosevelt Road. Taipei 106319 Taiwan (R.O.C)

DOI: https://doi.org/10.1002/adpr.202300344
Journal volume & issue: Vol. 5, no. 10
pp. n/a – n/a

Abstract

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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%.

Published in Advanced Photonics Research

ISSN: 2699-9293 (Online)
Publisher: Wiley-VCH
Country of publisher: Germany
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: https://onlinelibrary.wiley.com/journal/26999293

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