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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  • [21] Mini-LED, Micro-LED and OLED displays: present status and future perspectives
    Huang, Yuge
    Hsiang, En-Lin
    Deng, Ming-Yang
    Wu, Shin-Tson
    [J]. LIGHT-SCIENCE & APPLICATIONS, 2020, 9 (01)
  • [22] High hole mobility hole transport material for organic light-emitting devices
    Huh, Dal Ho
    Kim, Gyeong Woo
    Kim, Gyeong Heon
    Kulshreshtha, Chandramouli
    Kwon, Jang Hyuk
    [J]. SYNTHETIC METALS, 2013, 180 : 79 - 84
  • [23] Triplet annihilation exceeding spin statistical limit in highly efficient fluorescent organic light-emitting diodes
    Kondakov, D. Y.
    Pawlik, T. D.
    Hatwar, T. K.
    Spindler, J. P.
    [J]. JOURNAL OF APPLIED PHYSICS, 2009, 106 (12)
  • [24] Triplet-triplet annihilation in highly efficient fluorescent organic light-emitting diodes: current state and future outlook
    Kondakov, Denis Y.
    [J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2015, 373 (2044):
  • [25] Analysis of Triplet Exciton Loss Pathways in PTB7: PC71BM Bulk Heterojunction Solar Cells
    Kraus, Hannes
    Heiber, Michael C.
    Vaeth, Stefan
    Kern, Julia
    Deibel, Carsten
    Sperlich, Andreas
    Dyakonov, Vladimir
    [J]. SCIENTIFIC REPORTS, 2016, 6
  • [26] 25th Anniversary Article: Charge Transport and Recombination in Polymer Light-Emitting Diodes
    Kuik, Martijn
    Wetzelaer, Gert-Jan A. H.
    Nicolai, Herman T.
    Craciun, N. Irina
    De Leeuw, Dago M.
    Blom, Paul W. M.
    [J]. ADVANCED MATERIALS, 2014, 26 (04) : 512 - 531
  • [27] Blue organic light-emitting diodes: current status, challenges, and future outlook
    Lee, Jiun-Haw
    Chen, Chia-Hsun
    Lee, Pei-Hsi
    Lin, Hung-Yi
    Leung, Man-kit
    Chiu, Tien-Lung
    Lin, Chi-Feng
    [J]. JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (20) : 5874 - 5888
  • [28] The effects of tris(2-phenylpyridine) iridium on the hole injection and transport properties of 4,4′,4"-tri(N-carbazolyl)-triphenylamine thin films
    Li, Bixin
    Chen, Jiangshan
    Yang, Dezhi
    Zhao, Yongbiao
    Ma, Dongge
    [J]. THIN SOLID FILMS, 2012, 522 : 352 - 356
  • [29] Sky-Blue Organic Light Emitting Diode with 37% External Quantum Efficiency Using Thermally Activated Delayed Fluorescence from Spiroacridine-Triazine Hybrid
    Lin, Ting-An
    Chatterjee, Tanmay
    Tsai, Wei-Lung
    Lee, Wei-Kai
    Wu, Meng-Jung
    Jiao, Min
    Pan, Kuan-Chung
    Yi, Chih-Lung
    Chung, Chin-Lung
    Wong, Ken-Tsung
    Wu, Chung-Chih
    [J]. ADVANCED MATERIALS, 2016, 28 (32) : 6976 - +
  • [30] Probe exciplex structure of highly efficient thermally activated delayed fluorescence organic light emitting diodes
    Lin, Tzu-Chieh
    Sarma, Monima
    Chen, Yi-Ting
    Liu, Shih-Hung
    Lin, Ke-Ting
    Chiang, Pin-Yi
    Chuang, Wei-Tsung
    Liu, Yi-Chen
    Hsu, Hsiu-Fu
    Hung, Wen-Yi
    Tang, Wei-Chieh
    Wong, Ken-Tsung
    Chou, Pi-Tai
    [J]. NATURE COMMUNICATIONS, 2018, 9
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