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Near-infrared cyclometalated iridium(iii) complexes with bipolar features for efficient OLEDs via solution-processing.
Yu, Junting; Li, Maoqiu; Xu, Chao; Meng, Fanyuan; Cao, Jiamin; Tan, Hua; Zhu, Weiguo.
Afiliação
  • Yu J; Key Laboratory of Theoretical Organic Chemistry and Functional Molecule, Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China. yujuntingtt@163.com.
  • Li M; Key Laboratory of Theoretical Organic Chemistry and Functional Molecule, Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China. yujuntingtt@163.com.
  • Xu C; College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China. chaoxu_0205@163.com.
  • Meng F; College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China. chaoxu_0205@163.com.
  • Cao J; Key Laboratory of Theoretical Organic Chemistry and Functional Molecule, Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China. yujuntingtt@163.com.
  • Tan H; School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P. R. China. zhuwg18@126.com.
  • Zhu W; School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P. R. China. zhuwg18@126.com.
Dalton Trans ; 49(25): 8785-8790, 2020 Jun 29.
Article em En | MEDLINE | ID: mdl-32555837
ABSTRACT
A novel bipolar NIR iridium(iii) complex (CH3OTPA-BTz-Iq)2Ir(pic-OXD) with both a hole transporting (HT) triphenylamine (TPA) group and an electron transporting (ET) oxadiazole (OXD) group was designed and synthesized. It was observed that the incorporation of OXD and TPA into the ligand (CH3OTPA-BTz-Iq)2Ir(pic-OXD) improved the optophysical and electroluminescence performance in comparison with the parent iridium(iii) complex (CH3OTPA-BTz-Iq)2Irpic. In (CH3OTPA-BTz-Iq)2Ir(pic-OXD)-based OLEDs, a maximum external quantum efficiency (EQEmax) of 1.15% at 716 nm was obtained, which is much superior than that of the (CH3OTPA-BTz-Iq)2Irpic-based OLEDs (0.41% at 723 nm).
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article