Numerical Analysis and Optimization of a Hybrid Layer Structure for Triplet-Triplet Fusion Mechanism in Organic Light-Emitting Diodes

被引：2
作者：
Huang, Jun-Yu [1 ,2 ]
Hung, Hsiao-Chun [1 ]
Hsu, Kung-Chi [1 ]
Chen, Chia-Hsun [3 ]
Lee, Pei-Hsi [1 ]
Lin, Hung-Yi [1 ]
Lin, Bo-Yen [4 ]
Leung, Man-kit [3 ]
Chiu, Tien-Lung [5 ]
Lee, Jiun-Haw [1 ]
Friend, Richard H. H. [2 ]
Wu, Yuh-Renn [1 ]
机构：
[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Dept Elect Engn, Taipei 10617, Taiwan
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[3] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
[4] Natl Dong Hwa Univ, Dept Optoelect Engn, Hualien, Taiwan
[5] Yuan Ze Univ, Dept Elect Engn, Taoyuan 32003, Taiwan
来源：
ADVANCED THEORY AND SIMULATIONS | 2023年 / 6卷 / 02期
关键词：
device modeling; organic light-emitting diodes; triplet- triplet fusion; ACTIVATED DELAYED FLUORESCENCE; CHARGE-TRANSPORT; EFFICIENCY; MOBILITY;
D O I：
10.1002/adts.202200633
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this study, a steady state and time-dependent exciton diffusion model including singlet and triplet excitons coupled with a modified Poisson and drift-diffusion solver to explain the mechanism of hyper triplet-triplet fusion (TTF) organic light-emitting diodes (OLEDs) is developed. Using this modified simulator, various characteristics of OLEDs, including the current-voltage curve, internal quantum efficiency, transient spectrum, and electric profile are demonstrated. This solver can also be used to explain the mechanism of hyper-TTF-OLEDs and analyze the loss from different exciton mechanisms. Furthermore, we perform additional optimization of hyper-TTF-OLEDs that increases the internal quantum efficiency by approximate to 33% (from 29% to 40%).
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页数：11
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