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Efficient orange‒red/red thermally activated delayed fluorescence materials based on 1,8-naphthalimide and donor engineering

Organic Electronics, ISSN: 1566-1199, Vol: 133, Page: 107113
2024
  • 2
    Citations
  • 0
    Usage
  • 1
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    2
  • Captures
    1
  • Mentions
    1
    • News Mentions
      1
      • 1

Most Recent News

Research Conducted at Ningbo University Has Updated Our Knowledge about Engineering (Efficient Orange-red/red Thermally Activated Delayed Fluorescence Materials Based On 1,8-naphthalimide and Donor Engineering)

2024 OCT 08 (NewsRx) -- By a News Reporter-Staff News Editor at Engineering Daily News -- Data detailed on Engineering have been presented. According to

Article Description

Low-cost and efficient long-wavelength thermally activated delayed fluorescence (TADF) materials are crucial for organic light-emitting diodes (OLEDs) applications. In this study, 1,8-naphthalimide (NAI)-based D-A-type molecules were explored with a focus on donor engineering. A green-emitting non-TADF original control, the NAI/triphenylamine (TPA) hybrid NAI-TPA, was subjected to structural locking by oxygen-atom bridges on the TPA unit and further adopted an adjacent two-donor configuration to obtain two efficient orange-red/red TADF emitters, NAI-DPXZ and NAI-2DPXZ. The two compounds exhibited both significantly redshifted electroluminescence and improved external quantum efficiency (EQE), reaching 22.12 % at 583 nm and 11.17 % at 622 nm, respectively, which are approximately 2–3 times greater than those achieved by the O-bridges-free controls NAI-TPA (7.38 % at 517 nm) and NAI-2TPA (5.80 % at 564 nm). This work may provide an effective design strategy for the development of high-performance and low-cost orange-red/red TADF materials.

Bibliographic Details

Jing Zhang; Zhang-Li Cheng; Jia-Chen Li; Jie Li; Hui Wang; Feng Huang; Ying-Chun Cheng; Xin Xiong; Hao Wu; Jie-Yu Zhou; Wen Gao; Kai Wang; Xiao-Hong Zhang; Jun Ye

Elsevier BV

Materials Science; Chemistry; Physics and Astronomy; Engineering

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