含叔丁基修饰咪唑/咔唑基团的v型融合双香豆素的光致发光和电致发光性质

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics Pub Date : 2025-02-04 DOI:10.1016/j.orgel.2025.107208

Rongjing Liu , Tianzhi Yu , Ruige Su , Yuling Zhao , Di Zhang , Shuomei Zhang , Wenming Su

{"title":"含叔丁基修饰咪唑/咔唑基团的v型融合双香豆素的光致发光和电致发光性质","authors":"Rongjing Liu , Tianzhi Yu , Ruige Su , Yuling Zhao , Di Zhang , Shuomei Zhang , Wenming Su","doi":"10.1016/j.orgel.2025.107208","DOIUrl":null,"url":null,"abstract":"<div><div>The unique molecular structure of fused-biscoumarins endows them with intriguing photophysical properties, making some of them excellent fluorophores. However, their poor solubility limits their application in the solution-processable organic light-emitting diodes (OLEDs). In this work, to improve the solubility of the fused-biscoumarins for the solution-processable OLEDs, two new V-shaped fused-biscoumarins containing <em>tert</em>-butyl group modified imidazole/carbazole groups, <strong>VBC-IM</strong> and <strong>VBC-BuCz</strong>, were successfully synthesized and characterized. Both compounds exhibit intense green emission in dichloromethane solution and good thermal stability. In the absence of the hole-transporting layers, the doped devices using the solution-processed emitting layers of CBP:<strong>VBC-IM</strong> or <strong>VBC-BuCz</strong> emit green emission with the maximum external quantum efficiency (EQE<sub>max</sub>) of 1.63 % and 1.82 %, and the maximum luminance (L<sub>max</sub>) of 2059 cd/m<sup>2</sup> and 2796 cd/m<sup>2</sup>, respectively.</div></div>","PeriodicalId":399,"journal":{"name":"Organic Electronics","volume":"139 ","pages":"Article 107208"},"PeriodicalIF":2.7000,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photo- and electroluminescent properties of V-shaped fused-biscoumarins containing tert-butyl group modified imidazole/carbazole groups\",\"authors\":\"Rongjing Liu , Tianzhi Yu , Ruige Su , Yuling Zhao , Di Zhang , Shuomei Zhang , Wenming Su\",\"doi\":\"10.1016/j.orgel.2025.107208\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The unique molecular structure of fused-biscoumarins endows them with intriguing photophysical properties, making some of them excellent fluorophores. However, their poor solubility limits their application in the solution-processable organic light-emitting diodes (OLEDs). In this work, to improve the solubility of the fused-biscoumarins for the solution-processable OLEDs, two new V-shaped fused-biscoumarins containing <em>tert</em>-butyl group modified imidazole/carbazole groups, <strong>VBC-IM</strong> and <strong>VBC-BuCz</strong>, were successfully synthesized and characterized. Both compounds exhibit intense green emission in dichloromethane solution and good thermal stability. In the absence of the hole-transporting layers, the doped devices using the solution-processed emitting layers of CBP:<strong>VBC-IM</strong> or <strong>VBC-BuCz</strong> emit green emission with the maximum external quantum efficiency (EQE<sub>max</sub>) of 1.63 % and 1.82 %, and the maximum luminance (L<sub>max</sub>) of 2059 cd/m<sup>2</sup> and 2796 cd/m<sup>2</sup>, respectively.</div></div>\",\"PeriodicalId\":399,\"journal\":{\"name\":\"Organic Electronics\",\"volume\":\"139 \",\"pages\":\"Article 107208\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2025-02-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Organic Electronics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S156611992500014X\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organic Electronics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S156611992500014X","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

融合双香豆素独特的分子结构赋予它们有趣的光物理性质，使它们中的一些成为优秀的荧光团。然而，它们的溶解度差限制了它们在溶液可加工有机发光二极管（oled）中的应用。为了提高双香豆素在溶液可加工oled中的溶解度，本文成功合成了两种新型v形的含有叔丁基修饰咪唑/咔唑基团的双香豆素VBC-IM和VBC-BuCz。两种化合物在二氯甲烷溶液中均表现出强烈的绿色排放和良好的热稳定性。在没有空穴输运层的情况下，使用CBP:VBC-IM或VBC-BuCz溶液处理发射层的掺杂器件发出绿色辐射，最大外量子效率（EQEmax）分别为1.63%和1.82%，最大亮度（Lmax）分别为2059 cd/m2和2796 cd/m2。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Photo- and electroluminescent properties of V-shaped fused-biscoumarins containing tert-butyl group modified imidazole/carbazole groups

查看原文本刊更多论文

Photo- and electroluminescent properties of V-shaped fused-biscoumarins containing tert-butyl group modified imidazole/carbazole groups

The unique molecular structure of fused-biscoumarins endows them with intriguing photophysical properties, making some of them excellent fluorophores. However, their poor solubility limits their application in the solution-processable organic light-emitting diodes (OLEDs). In this work, to improve the solubility of the fused-biscoumarins for the solution-processable OLEDs, two new V-shaped fused-biscoumarins containing tert-butyl group modified imidazole/carbazole groups, VBC-IM and VBC-BuCz, were successfully synthesized and characterized. Both compounds exhibit intense green emission in dichloromethane solution and good thermal stability. In the absence of the hole-transporting layers, the doped devices using the solution-processed emitting layers of CBP:VBC-IM or VBC-BuCz emit green emission with the maximum external quantum efficiency (EQE_max) of 1.63 % and 1.82 %, and the maximum luminance (L_max) of 2059 cd/m² and 2796 cd/m², respectively.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Organic Electronics 工程技术-材料科学：综合

CiteScore

6.60

自引率

6.20%

发文量

238

审稿时长

44 days

期刊介绍： Organic Electronics is a journal whose primary interdisciplinary focus is on materials and phenomena related to organic devices such as light emitting diodes, thin film transistors, photovoltaic cells, sensors, memories, etc. Papers suitable for publication in this journal cover such topics as photoconductive and electronic properties of organic materials, thin film structures and characterization in the context of organic devices, charge and exciton transport, organic electronic and optoelectronic devices.