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Fabrication and Characterisation of Organic EL Devices in the Presence of Cyclodextrin as an Interlayer

机译:环糊精作为中间层存在的有机EL器件的制备和表征

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摘要

This study examined glass-based organic electroluminescence in the presence of a cyclodextrin polymer as an interlayer. Glass-based organic electroluminescence was achieved by the deposition of five layers of N,N’-Bis(3-methylphenyl)N,N’-bis(phenyl)-benzidine, cyclodextrin polymer (CDP), tris-(8-hydroxyquinolinato) aluminium LiF and Al on an indium tin oxide-coated glass substrate. The glass-based OEL exhibited green emission owing to the fluorescence of tris-(8-hydroxyquinolinato) aluminium. The highest luminance was 19,620 cd m−2. Moreover, the glass-based organic electroluminescence device showed green emission at 6 V in the curved state because of the inhibited aggregation of the cyclodextrin polymer. All organic molecules are insulating, but except CDP, they are standard molecules in conventional organic electroluminescence devices. In this device, the CDP layer contained pores that could allow conventional organic molecules to enter the pores and affect the organic electroluminescence interface. In particular, self-association was suppressed, efficiency was improved, and light emission was observed without the need for a high voltage. Overall, the glass-based organic electroluminescence device using CDP is an environmentally friendly device with a range of potential energy saving applications.
机译:该研究在作为中间层的环糊精聚合物存在下检查基于玻璃的有机电致发光。通过沉积五层N,N'-BIS(3-甲基苯基)N,N'-BIS(苯基) - 苯胺,环糊精聚合物(CDP),Tris-(8-羟基喹啉)来实现玻璃的有机电致发光。铝LiF和Al在氧化铟锡涂覆的玻璃基板上。由于Tris-(8-羟基喹啉)铝的荧光,基于玻璃的OEL表现出绿色发射。最高亮度为19,620cd m-2。此外,由于环糊精聚合物的抑制聚集,玻璃基有机电致发光器件在曲线中显示出6V的绿色发射。所有有机分子都是绝缘的,但除CDP之外,它们是常规有机电致发光器件中的标准分子。在该装置中,CDP层含有孔,其可以允许常规有机分子进入孔并影响有机电致发光界面。特别地,抑制了自我关联,提高了效率,并且观察到发光而无需高电压。总的来说,使用CDP的玻璃基机电致发光器件是一种环保装置,具有一系列潜在的节能应用。

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