Silylethynylated anthracene derivatives for use in organic light-emitting diodes

被引:39
作者
Landis, CA [1 ]
Parkin, SR [1 ]
Anthony, JE [1 ]
机构
[1] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 6A期
关键词
anthracene; fluorescence; electroluminescence; organic light emitting diodes; film morphology; pi-face interactions;
D O I
10.1143/JJAP.44.3921
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have prepared a series of trialkylsilylethynylated anthracenes (a-d) to investigate the effects of solid-state interactions and acene substitution on the electroluminescence spectra of OLED devices. We designed these materials to have differing amounts of pi-face interactions and various film morphologies. We were particularly interested in intermolecular interactions between aromatic faces, which would manifest in the electroluminescence spectrum as a bathochromic shift and broadening of the emission peak when compared to the solution photoluminescence spectrum. The anthracene derivatives with no electronic interactions, as determined by single-crystal X-ray crystallography, produced devices that showed no bathochromic shift and better efficiencies.
引用
收藏
页码:3921 / 3922
页数:2
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