聚合物-无机钙钛矿氧化物复合发光二极管性能的研究：钙钛矿SrTiO3添加剂的影响

IF 3.1 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nanomaterials and Nanotechnology Pub Date : 2021-01-01 DOI:10.1177/1847980420987774

U. K. N. Din, M. Salleh, T. Aziz, A. M. Md Zain, M. A. Mohamed, A. Umar

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引用次数: 2

摘要

本研究报道了一种基于聚合物材料聚(9,9-二-正己基氟壬基-2,7-二基)(PHF)与不同浓度的钙钛矿氧化物钛酸锶(SrTiO3)颗粒混合沉积的复合PHF: SrTiO3发光层的单结构发光二极管(LED)器件的性能。比较了单结构有机LED氧化铟锡(ITO)/PHF/铝(Al)器件和复合LED ITO/PHF: SrTiO3/Al器件的导通电压和发光强度。通过在PHF发光层中掺入钙钛矿SrTiO3颗粒，器件的导通电压从11.25 V显著降低到1.80 V，发光强度从57.7 cd/m2提高到609 cd/m2。研究发现，复合器件的导通电压和电致发光光谱的改善与PHF发射层中SrTiO3含量的重量比有关。

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On the performance of polymer-inorganic perovskite oxide composite light-emitting diodes: The effect of perovskite SrTiO3 additives

This study reports the performances of a single structured light-emitting diode (LED) devices based on polymer material poly(9,9-di-n-hexylfluorenyl-2,7-diyl) (PHF) mixed with various concentrations of perovskite oxide strontium titanate (SrTiO3) particles deposited as a composite PHF: SrTiO3 emitting layer. The performances of the single structured organic LED indium tin oxide (ITO)/PHF/aluminum (Al) device and the composite LED ITO/PHF: SrTiO3/Al devices were compared in terms of turn-on voltage and luminance intensity. By incorporating perovskite SrTiO3 particles into PHF emitting layer, the turn-on voltage of the device is significantly reduced from 11.25 V to 1.80 V and the luminance intensity increased from 57.7 cd/m2 to 609 cd/m2. The improvement of turn-on voltage and the electroluminescence spectrum of the composite devices were found to be dependent on the weight ratios of SrTiO3 content in the PHF emitting layer.

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来源期刊

Nanomaterials and Nanotechnology NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.20

自引率

21.60%

发文量

审稿时长

15 weeks

期刊介绍： Nanomaterials and Nanotechnology is a JCR ranked, peer-reviewed open access journal addressed to a cross-disciplinary readership including scientists, researchers and professionals in both academia and industry with an interest in nanoscience and nanotechnology. The scope comprises (but is not limited to) the fundamental aspects and applications of nanoscience and nanotechnology