用气相处理PEDOT:PSS薄膜作为阳极制备柔性无ITO OLED

Q Engineering

Journal of Display Technology Pub Date : 2016-11-02 DOI:10.1109/JDT.2016.2624341

Mohammad Hassani Yousefi;Ali Fallahzadeh;Jaber Saghaei;Mahdi Davoudi Darareh

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引用次数: 16

摘要

本研究旨在利用乙醇、乙二醇、硫酸和丙酮的蒸汽获得高导电性的聚（3，4-亚乙基二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT:PSS）膜作为有机发光二极管（OLED）的透明阳极。极性蒸汽通过对乙醇处理的PEDOT:PSS薄膜表面进行改性，使薄膜电阻从130kΩ/sq降低到97Ω/sq。溶剂的蒸汽极性解释了导电性增强的机理。用乙醇处理后，膜的均方根粗糙度从1.80改变到1.34nm。所有经处理的薄膜在可见光谱范围内的透射率指数均超过85%。将具有低薄层电阻和高透光率的极性气相处理的PEDOT:PSS膜用作OLED中的阳极。基于用乙醇蒸气处理的PEDOT:PSS膜制造的柔性无铟锡氧化物OLED显示出564cd/m2的最高亮度强度。

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Fabrication of Flexible ITO-Free OLED Using Vapor-Treated PEDOT:PSS Thin Film As Anode

The present research purports to have obtained highly conductive poly(3,4-ethylenedioxythiophene): poly (styrene sulfonate) (PEDOT:PSS) films as transparent anodes for organic light emitting diodes (OLEDs) using the vapors of ethanol, ethylene glycol, sulfuric acid, and acetone. Polar vapor exhibited the capability to decrease the sheet resistance from 130 kΩ/sq to 97 Ω/sq through modifying the surface of PEDOT:PSS film treated by ethanol. The conductivity enhancement mechanism has been explained by vapor polarity of the solvent. Root mean square roughness of the films was altered from 1.80 to 1.34 nm after being treated with ethanol. The transmittance indices of all the treated films have been more than 85% in the visible spectral range. Polar vapor-treated PEDOT:PSS films with low sheet resistance and high optical transmittance were applied as an anode in the OLEDs. Flexible indium tin oxide-free OLED manufactured based on PEDOT:PSS film treated with ethanol vapor displayed the highest luminance intensity of 564 cd/m ² .

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来源期刊

Journal of Display Technology 工程技术-工程：电子与电气

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

2.8 months

期刊介绍： This publication covers the theory, material, design, fabrication, manufacturing and application of information displays and aspects of display technology that emphasize the progress in device engineering, design and simulation, materials, electronics, physics, and reliability aspects of displays and the application of displays. The Journal is sponsored by EDS, seven other IEEE societies (BT, CES, CPMT, IA, IM, PHO and SSC) and the Optical Society of America (OSA).