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Application of A Novel Cross-linkable Electron Transport Material in OLED
- Chinese Journal of Luminescence Vol. 41, Issue 9, Pages: 1093-1101(2020)
- 作者机构：
1.中国科学院苏州纳米技术与纳米仿生研究所 印刷电子技术研究中心, 江苏 苏州 215123
2.上海科技大学 物质科学与技术学院, 上海 201210
- 作者简介：
[ "高朝(1992-), 男, 湖北黄冈人, 硕士研究生, 2013年于湖北工程学院获得学士学位, 主要从事OLED材料的合成以及器件等方面的研究。E-mail:zgao2018@sinano.ac.cn" ]
[ "苏文明(1978-), 男, 湖南邵东人, 博士, 研究员, 2007年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事印刷发光与显示等方面的研究E-mail:wmsu2008@sinano.ac.cn" ]
- 基金信息：国家重点研发计划
DOI：10.37188/fgxb20204109.1093
CLC：
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Zhao GAO, Li-ming XIE, Wen-ming SU, et al. Application of A Novel Cross-linkable Electron Transport Material in OLED. [J]. Chinese Journal of Luminescence 41(9):1093-1101(2020)
Zhao GAO, Li-ming XIE, Wen-ming SU, et al. Application of A Novel Cross-linkable Electron Transport Material in OLED. [J]. Chinese Journal of Luminescence 41(9):1093-1101(2020) DOI： 10.37188/fgxb20204109.1093.
摘要
设计并合成了一种新型的可交联电子传输材料TV-T2T。该材料经过热交联之后具有优异的抗溶剂特性，并且TV-T2T的LUMO能级为-3.5 eV，这将更有利于电子从ZnO层注入到发光层中。另外，溶液法制备的三层薄膜ZnO/TV-T2T/2，6-Dczppy:Ir（mppy）,3,，其粗糙度低至2.27 nm，优于未加入TV-T2T电子传输层的双层薄膜（2.37 nm），可以有效减少漏电流的产生。随后，将TV-T2T应用于三层溶液法制备的倒置有机发光二极管中，获得了5.1% EQE的器件性能，是不加TV-T2T的器件性能（EQE为3.0%）的1.7倍。
Abstract
A new cross-linkable electron transport layer(ETL) material, 2, 4, 6-tris(4'-vinyl-[1, 1'-biphenyl]-3-yl)-1, 3, 5-triazine(TV-T2T) was designed and synthesized. The film formation of the cross-linkable material TV-T2T has the excellent solvent resistance. The lowest unoccupied molecular orbital(LUMO) level of TV-T2T is -3.5 eV, which could deliver efficient charge injection from the zinc oxide(ZnO) to the emission layer. In addition, the surface roughness of 2.27 nm in the film of triple-layer ZnO/TV-T2T/2, 6-Dczppy:Ir(mppy),3, is lower than that of the film without TV-T2T(2.39 nm), resulting in a reduced leakage current. The solution-processed inverted OLED with ETL material TV-T2T, achieved an EQE of 5.1% compared to the 3.0% EQE of the device without TV-T2T layer, demonstrating an improvement of 1.7-fold for the inverted OLEDs.
关键词
交联材料电子传输层电子注入能力溶液法倒置OLED
Keywords
cross-linkable materialelectron transport layerelectron injection propertysolution processinginverted organic light emitting diodes
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