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首页> 外文期刊>Organic Electronics >Controllable and efficient hole-injection layers with molybdenum oxide units by solution-processed procedure for OLEDs
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Controllable and efficient hole-injection layers with molybdenum oxide units by solution-processed procedure for OLEDs

机译：通过溶液加工氧化钼单元可控和高效的空穴注入层，用于OLED的溶液加工程序

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摘要

Since the low work function of ITO, introducing hole injection layer (HIL) with controllable and efficient property is an effective way to improve the performance of organic light-emitting diodes (OLEDs). In this work, films, containing molybdenum oxide units by employing H_2O_2 treated ammonium phosphomolybdate (AMP) as precursors, are fabricated through solution-processed procedure. The hole injection property of the HILs can be modulated by the gap-state density, which is negatively correlated with the molar ratio of AMP/H_2O_2. Green fluorescent and phosphorescent OLEDs based on the HILs are endowed with reduced turn-on voltage from 3.4 to 2.5 V and 4.1 to 3.4 V, respectively. Furthermore, fluorescent OLEDs based on the HIL with AMP/H_2O_1 of 1:14 show a maximum current efficiency of 6.82 cd/A, 1.2-flod higher than that of PEDOT:PSS based devices. This method opens up a new path to obtain HIL with adjustable property in mild prepare condition for various electroluminescent devices.
机译：由于ITO的低功函数，引入具有可控且有效的性质的孔注入层（HIL）是提高有机发光二极管（OLED）性能的有效方法。在这项工作中，通过使用H_2O_2处理的氧化钼钼（AMP）作为前体来制造含有钼氧化钼单元的薄膜，通过溶液加工程序制造。 HIL的空穴注射性能可以通过间隙状态密度调节，其与AMP / H_2O_2的摩尔比负相关。基于HIL的绿色荧光和磷光OLED分别从3.4至2.5 V和4.1至3.4V的开启电压降低。此外，基于1:14的AMP / H_2O_1的HIL的荧光OLED显示出比PEDOT的最大电流效率为6.82cd / a，1.2-散流量：基于PESS的器件。该方法为各种电致发光器件的温和准备条件下，为在温和的方向中获得具有可调节性质的新路径。

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  • 来源
    《Organic Electronics》 |2020年第10期|105868.1-105868.9|共9页
  • 作者

    Han Xiao; Basilio Alberto Rungo; Shirong Wang; Xianggao Li; Hongli Liu;

  • 作者单位

    School of Chemical Engineering and Technology Tianjin University Tianjin 300354 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China;

    School of Chemical Engineering and Technology Tianjin University Tianjin 300354 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China;

    School of Chemical Engineering and Technology Tianjin University Tianjin 300354 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China;

    School of Chemical Engineering and Technology Tianjin University Tianjin 300354 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China;

    School of Chemical Engineering and Technology Tianjin University Tianjin 300354 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Hole injection; Controllable; Ammonium phosphomolybdate; Gap states; Organic light-emitting diodes;

    机译：孔注射;可控;磷钼铵铵;差距国家;有机发光二极管;

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