一种控制PFO薄膜中β相形成以优化发射性能的简单方法

Qi Zhang, Lang Chi, Gang Hai, Yueting Fang, Xiangchun Li, R. Xia, Wei Huang, E. Gu
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引用次数: 24

摘要

我们展示了一种控制聚(9,9-二辛基芴)(PFO)薄膜中β相含量的新方法。在甲苯中加入少量石蜡油作为PFO溶液的添加剂。通过改变混合溶液中石蜡油的体积百分比,可以将自旋包覆PFO膜中的β相分数从0%提高到20%。有机发光二极管(oled)和放大自发发射(ASE)的研究证实,低β相分数有利于oled器件的性能,而高β相分数有利于ASE的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Easy Approach to Control β-Phase Formation in PFO Films for Optimized Emission Properties
We demonstrate a novel approach to control β-phase content generated in poly(9,9-dioctylfluorene) (PFO) films. A very small amount of paraffin oil was used as the additive to the PFO solution in toluene. The β-phase fraction in the spin-coated PFO films can be modified from 0% to 20% simply by changing the volume percentage of paraffin oil in the mixed solution. Organic light emitting diodes (OLEDs) and amplified spontaneous emission (ASE) study confirmed low β-phase fraction promise better OLEDs device, while high β-phase fraction benefits ASE performance.
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