Novel carbazole-based multifunctional materials with a hybridized local and charge-transfer excited state acting as deep-blue emitters and phosphorescent hosts for highly efficient organic light-emitting diodes

Author:

Zhou Haitao1234,Yin Mengna564,Zhao Zhenhong564,Miao Yanqin564ORCID,Jin Xin1234,Huang Jinhai1234,Gao Zhixiang7894ORCID,Wang Hua564ORCID,Su Jianhua1234ORCID,Tian He1234ORCID

Affiliation:

1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals

2. East China University of Science & Technology

3. Shanghai 200237

4. China

5. Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology

6. Taiyuan 030024

7. Higher Education Key Laboratory of New Microstructure Functional Materials in Shanxi Province

8. Shanxi Datong University

9. Datong 037009

Abstract

Two novel multifunctional HLCT materials, namely OCI and OCT, were presented and they proved to be better green hosts than CBP. Acting as a deep-blue emitter, the OCI-based device achieved an EQE of 5.06% and CIEy < 0.04 with an EL peak at 424 nm.

Funder

National Natural Science Foundation of China

Project 211

Shanxi Provincial Key Research and Development Project

Publisher

Royal Society of Chemistry (RSC)

Subject

Materials Chemistry,General Chemistry

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