Highly conductive composites of PEDOT:PSS-ZnS thin film for improved hole mobility in polymer devices

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2024-09-17 DOI:10.1016/j.optmat.2024.116120

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引用次数: 0

Abstract

Diving into the forefront of polymer light-emitting diodes (PLEDs), this study pioneers the synthesis of PEDOT:PSS-ZnS composite films on ITO surfaces, achieving remarkable advancements in charge transfer efficiency. Through meticulous optimization, these films exhibit extraordinary electrical conductivity (133 S/cm), specific capacitance (74.75 F/g), and hole mobility (132.56 cm $^{2}$ /Vs), supported by a finely tuned HOMO energy (−5.02 eV) and work function (5.02 eV). The resultant heightened optical conductivity promises unparallelled performance in the crucial role of hole transport layers (HTLs) within PLEDs. Further analysis unveils an impressive quantum efficiency (QE) of 28% and fluorescence resonance energy transfer (FRET) efficiency of 52%, underscoring the exceptional HTL characteristics. This breakthrough heralds PEDOT:PSS-ZnS composites as game-changers in crafting high-efficiency HTLs for PLEDs, seamlessly merging advanced optical, electrical, and electrochemical properties. The implications extend far beyond, illuminating a pathway towards transformative advancements in display and lighting technologies, destined to redefine the future of illumination.

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PEDOT:PSS-ZnS 薄膜的高导电性复合材料可提高聚合物器件中的空穴迁移率

本研究深入聚合物发光二极管（PLED）的最前沿，率先在 ITO 表面合成了 PEDOT:PSS-ZnS 复合薄膜，显著提高了电荷转移效率。通过精心优化，这些薄膜表现出非凡的电导率（133 S/cm）、比电容（74.75 F/g）和空穴迁移率（132.56 cm2/Vs），并得到微调的 HOMO 能量（-5.02 eV）和功函数（5.02 eV）的支持。由此产生的更高光传导性使其在发挥 PLED 内空穴传输层 (HTL) 的关键作用方面具有无与伦比的性能。进一步的分析表明，其量子效率（QE）达到了令人印象深刻的 28%，荧光共振能量转移（FRET）效率达到了 52%，凸显了 HTL 的卓越特性。这一突破预示着，PEDOT:PSS-ZnS 复合材料将无缝融合先进的光学、电学和电化学特性，在为 PLED 制作高效 HTL 的过程中改变游戏规则。其影响远不止于此，它照亮了一条通向显示和照明技术变革性进步的道路，注定要重新定义照明的未来。

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.