新型苝酸酯与PVK的能量转移及电致发光性能研究

论文编号:SW084论文字数:11677,页数:28

摘 要:作为未来平板显示最有力竞争者的有机电致发光技术由于各方面的优异表现而引起人们的广泛兴趣，成为当今显示领域的研究热点。目前有机发光的研究主要集中于如何提高的器件量子效率，获得长久寿命以及高的发光亮度方面。为了提高器件荧光量子效率，本论文围绕聚合物掺杂有机发光薄膜的材料合成、器件结构设计与制备等过程，开展了聚合物掺杂荧光发光机理的研究。特别是对染料小分子苝酸四甲酯perylene-3,4,9,10-tetracarboxylicacid (TMEP)掺杂薄膜和新型聚合物材料PKMTb的发光特性与器件结构进行了较为系统的研究。论文研究了在发光聚合物poly(N-vinyl-carbazole)(PVK)中掺杂小分子苝酸四甲酯的各种发光特性。利用PVK与TMEP不同的荧光特征光谱来研究TMEP掺杂对PVK发光的影响，以及发光过程的能量转换关系。

关键词：苝酸酯；能量转移；电致发光

The research on the new perylene,PVK’s energy transfer and Electroluminescence properties

Abstract: During the past several years, organic electroluminescent (EL) devices based either on small molecules or on polymers are of great current interest due to their potential application in full color display panel covering variety of emission color from blue to red. The study about OLED mainly concentrates on how to increase luminescent efficiency, how to improve device life time and how to get higher luminosity. To improve the luminescent efficiency, this paper focused on doped polymer EL devices involving materials synthetic, device design and preparation. We have carried out systemic research on perylene-3,4,9,10-tetracarboxylicacid(TMEP) doped polymer devices and PKMTb series polymer devices. We have studied the optical properties of TMEP doped PVK films. Using EL and PL spectra, we figured out the influence of introducing TMEP to PVK and the energy transfer process.

Keywords: Perylene; Energy transfer; Electroluminescence

目 录

中文摘要I

英文摘要II

目录III

1. 绪论1

1.1 引言.1

1.2 有机电致发光器件的结构1

1.3 有机电致发光原理2

1.4 常见的有机电致发光材料2

1.5 有机电致发光器件的能带结构3

1.6 有机电致发光器件的发光性能表征4

2. 实验部分7

2.1 苝四酸四甲酯（TMEP）的合成与表征7

2.2 有机单层器件的制备9

3. 结果与讨论12

3.1 光致激发下从PVK到TMEP有效的能量转移12

3.2 单层有机混合薄膜电致发光器件17

4．总结与展望22

致谢24

参考文献25