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A simple technique for the fabrication of zinc oxide-PEDOT:PSS nanocomposite thin film for OLED application

机译：一种用于OLED应用的氧化锌-PEDOT：PSS纳米复合薄膜的简单制备技术

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摘要

We report in-situ synthesis of zinc oxide nanorods on pre-seeded substrates with poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) matrix resulting in thin films of ZnO nanorods (NR)-PEDOT:PSS nanocomposite. Prepared ZnO-PEDOT:PSS nanocomposite films were characterized by X-ray diffraction (XRD) and scanning electron microscopy. Wurtzite crystal structure of ZnO was confirmed by the XRD analysis and SEM images indicated the successful incorporation of ZnO in polymer matrix. These nanocomposite thin films were then used as hole injecting layers (HILs) in organic light emitting diodes. Devices were prepared using nanocomposite film and studied using current density-voltage (J-V) characteristics and electroluminescence (EL) measurements. Luminance was enhanced by 4.5 times with modified HIL of ZnO NR-PEDOT:PSS film as compared to the reference device with pristine PEDOT:PSS as HIL. Current efficiency was improved from 4.62 cd/A to 11.03 cd/A and power efficiency was enhanced by 2.4 times in the presence of ZnO nanorods. (C) 2016 Elsevier B.V. All rights reserved.
机译：我们报告原位合成的聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）基质在预先播种的基底上的氧化锌纳米棒的合成，导致ZnO纳米棒（NR）-PEDOT：PSS纳米复合材料的薄膜。用X射线衍射（XRD）和扫描电镜对制备的ZnO-PEDOT：PSS纳米复合薄膜进行了表征。 XRD分析证实了ZnO的纤锌矿晶体结构，SEM图像表明ZnO成功地掺入了聚合物基体中。然后将这些纳米复合薄膜用作有机发光二极管中的空穴注入层（HIL）。使用纳米复合膜制备器件，并使用电流密度-电压（J-V）特性和电致发光（EL）测量进行研究。与使用原始PEDOT：PSS作为HIL的参考设备相比，使用ZnO NR-PEDOT：PSS膜的改良HIL可以将亮度提高4.5倍。在ZnO纳米棒的存在下，电流效率从4.62 cd / A提高到11.03 cd / A，功率效率提高了2.4倍。 （C）2016 Elsevier B.V.保留所有权利。

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