Tailoring hole injection using facilely solution-processed economical calcium carbonate in near ultraviolet organic light-emitting diodes

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Materials Science: Materials in Electronics Pub Date : 2024-11-15 DOI:10.1007/s10854-024-13861-1

Jingwei Wu, Jielong Li, Hao Chen, Yuwei Liu, Bingyu Wang, Xiaocui Wang, Lingyu Huo, Liming Liu, Xiaowen Zhang

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Abstract

Economical nano-scale CaCO₃ particles with superior aqueous dispersion and facile preparation process of sand milling are demonstrated. The spin-coated CaCO₃, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and CaCO₃-doped PEDOT:PSS films are characterized with scanning electron microscope, atomic force microscope, X-ray/ultraviolet photoelectron spectroscopy, current–voltage characteristics and impedance spectroscopy analysis, confirming good surface morphology and satisfactory hole injection properties. With CaCO₃-doped PEDOT:PSS tailoring hole injection and 2-(4-biphenyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole as emitter, efficient near ultraviolet organic light-emitting diodes have been constructed. The device gives maximum external quantum efficiency of 1.16%, radiance of 1.95 mW/cm², and stable electroluminescent spectra peaking at 395–404 nm.

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在近紫外有机发光二极管中使用易于溶液加工的经济型碳酸钙来调整孔注入量

本研究展示了经济的纳米级 CaCO3 粒子，它具有优异的水分散性和简便的砂磨制备工艺。利用扫描电子显微镜、原子力显微镜、X 射线/紫外光电子能谱、电流-电压特性和阻抗能谱分析对旋涂 CaCO3、聚（3,4-亚乙二氧基噻吩）：聚（苯乙烯磺酸）（PEDOT：PSS）和掺杂 CaCO3 的 PEDOT：PSS 薄膜进行了表征，证实其具有良好的表面形貌和令人满意的空穴注入性能。利用掺杂 CaCO3 的 PEDOT:PSS 来定制空穴注入，并以 2-(4-联苯)-5-(4-叔丁基苯基)-1,3,4-恶二唑作为发射极，构建了高效的近紫外有机发光二极管。该器件的最大外部量子效率为 1.16%，辐射率为 1.95 mW/cm2，电致发光光谱在 395-404 nm 处达到稳定峰值。

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来源期刊

Journal of Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.