Improving the efficiency of organic electroluminescent devices by introducing an electron-accepting and thermally stable polymer |
| |
| Affiliation: | 1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany;2. Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743 Jena, Germany;3. JenaBatteries GmbH, Botzstrasse 5, 07743 Jena, Germany;1. Chongqing Institute of Green and Intelligent Technologies, Chinese Academy of Sciences, Fangzheng Avenue 266, Chongqing 400714, China;2. College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials, Sichuan University, South section of 1st ring road 24, Chengdu 610065, China;1. Department of Chemistry, Zhejiang University, Hangzhou 310027, China;2. MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China |
| |
| Abstract: | A new hole-transporting material for multi-layer organic electroluminescent devices (OELDs) was prepared by the copolymerization of a hole-transporting material (9-vinyl carbazole) and an electron-retarding material (bis-4-vinylbenzyl-4,4′-dipyridinium chloride). The resulting polymer has good thermal stability and electron-retarding property, due to its chemical structure and the 4,4′-dipyridyl groups, respectively. The OELDs were fabricated with a multi-layer structure of an anode/new polymeric hole-transporting layer (HTL)/emitter/cathode. It was found that the electroluminescence efficiency was improved by using an electron-retarding material in a HTL. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
