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2024 , Vol. 44 >Issue 4: 1210 - 1217

DOI: https://doi.org/10.6023/cjoc202309026

研究论文

一种Y型噻吨酮-咔唑分子的设计、合成及其蓝光和黄光有机发光二极管应用

  • 孙静 ,
  • 樊志杰 ,
  • 杜纪宽 ,
  • 李硕 ,
  • 苗艳勤 ,
  • 赵波 ,
  • 董海亮 ,
  • 王华
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  • a 太原理工大学 新材料界面科学与工程教育部重点实验室 太原 030024
    b 山西浙大新材料与化工研究院 太原 030024

收稿日期: 2023-09-27

  修回日期: 2023-11-15

  网络出版日期: 2023-12-29

基金资助

国家自然科学基金(62074109); 国家自然科学基金(6207031407); 国家自然科学基金委联合基金(U21A20492); 山西省科技创新人才队伍建设(202204051001013)

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Design and Synthesis of a Y-Type Thioxanthone-Carbazole for the Application in Blue and Yellow Organic Light-Emitting Diodes

  • Jing Sun ,
  • Zhijie Fan ,
  • Jikuan Du ,
  • Shuo Li ,
  • Yanqin Miao ,
  • Bo Zhao ,
  • Hailiang Dong ,
  • Hua Wang
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  • a Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024
    b Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030024
* E-mail: ;
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Received date: 2023-09-27

  Revised date: 2023-11-15

  Online published: 2023-12-29

Supported by

National Natural Science Foundation of China(62074109); National Natural Science Foundation of China(6207031407); Joint Funds of the National Natural Science Foundation of China(U21A20492); Science and Technology Innovation Talent Team Project of Shanxi Province(202204051001013)

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摘要

采用噻吨酮作为受体, 9,9'-(1,3-苯基)二-9H-咔唑作为给体, 设计合成了一种Y型分子, 命名为TX-Ph2Cz. 化合物在稀释的溶液中展示了位于420 nm处的蓝光发射, 且其发射峰在不同极性的溶剂中基本不变. 在四氢呋喃/水的混合溶剂中, 随着含水量的增加发射峰红移了36 nm. 从其单晶结构中可以看出化合物具有很多分子间相互作用, 分子间的π…π作用有助于实现分子间的电荷转移. 化合物TX-Ph2Cz在掺杂器件(质量分数3%)中展示了位于440 nm的蓝光峰, 而在非掺杂器件中则展示了位于540 nm处的黄光峰, 这是因为在薄膜中化合物自身形成了电致激基缔合物. 同时, 非掺杂器件展示了更好的电致发光性能, 最大电流效率和最大外量子效率分别达到4.91 cd/A和2.64%.

关键词： 有机发光二极管(OLED); 噻吨酮-咔唑; Y型结构; 激基缔合物

本文引用格式

孙静 , 樊志杰 , 杜纪宽 , 李硕 , 苗艳勤 , 赵波 , 董海亮 , 王华 . 一种Y型噻吨酮-咔唑分子的设计、合成及其蓝光和黄光有机发光二极管应用[J]. 有机化学, 2024 , 44(4) : 1210 -1217 . DOI: 10.6023/cjoc202309026

Abstract

A Y-shaped emitter, TX-Ph2Cz, was designed and synthesized, which uses a thioketone unit as the acceptor and 9,9'-(1,3-phenylene)bis-9H-carbazole as the donor. The compound exhibited blue emission at about 420 nm in diluted solution and a small change in the different solvents with various polarities. In the mixed tetrahydrofuran (THF)/H2O solvents, emission bands had a red shift of 36 nm with the increased content of water. According to the single crystal structure, TX-Ph2Cz showed many intermolecular interaction and the π…π interaction between adjacent molecules would increase the intermolecular charge transfer. Critically, TX-Ph2Cz exhibited blue emission (440 nm) in the doped device, but yellow emission (540 nm) in the non-doped device was originated from the excimer of TX-Ph2Cz. Moreover, the maximum current efficiency and external quantum efficiency of non-doped device were 4.91 cd/A and 2.64%, respectively.

Key words： organic light-emitting diode (OLED); thioxanthone-carbazole derivatives; Y-type structure; excimer

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