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Xing X, Wu Z, Sun Y, Liu Y, Dong X, Li S, Wang W. The Optimization of Hole Injection Layer in Organic Light-Emitting Diodes. Nanomaterials (Basel) 2024; 14:161. [PMID: 38251126 PMCID: PMC10819190 DOI: 10.3390/nano14020161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/02/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024]
Abstract
Organic light-emitting diodes (OLEDs) are widely recognized as the forefront technology for displays and lighting technology. Now, the global OLED market is nearly mature, driven by the rising demand for superior displays in smartphones. In recent years, numerous strategies have been introduced and demonstrated to optimize the hole injection layer to further enhance the efficiency of OLEDs. In this paper, different methods of optimizing the hole injection layer were elucidated, including using a suitable hole injection material to minimize the hole injection barrier and match the energy level with the emission layer, exploring new preparation methods to optimize the structure of hole injection layer, and so on. Meanwhile, this article can help people to understand the current research progress and the challenges still faced in relation to the hole injection layer in OLEDs, providing future research directions to enhance the properties of OLEDs.
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Affiliation(s)
- Xiaolin Xing
- School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China; (X.X.); (Z.W.); (Y.S.); (X.D.); (S.L.)
- Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China
| | - Ziye Wu
- School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China; (X.X.); (Z.W.); (Y.S.); (X.D.); (S.L.)
- Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China
| | - Yingying Sun
- School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China; (X.X.); (Z.W.); (Y.S.); (X.D.); (S.L.)
- Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China
| | - Yunlong Liu
- School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China; (X.X.); (Z.W.); (Y.S.); (X.D.); (S.L.)
- Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China
| | - Xiaochen Dong
- School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China; (X.X.); (Z.W.); (Y.S.); (X.D.); (S.L.)
- Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing 211800, China
| | - Shuhong Li
- School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China; (X.X.); (Z.W.); (Y.S.); (X.D.); (S.L.)
- Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China
| | - Wenjun Wang
- School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China; (X.X.); (Z.W.); (Y.S.); (X.D.); (S.L.)
- Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252059, China
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