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利用电液动力喷射喷涂优化用于溶液处理量子点发光二极管的量子点薄膜

Optimization of Quantum Dot Thin Films using Electrohydrodynamic Jet Spraying for Solution-Processed Quantum Dot Light-Emitting Diodes.

作者信息

Nguyen Tuan Canh, Can Thi Thu Thuy, Choi Woon-Seop

机构信息

Department of Display Engineering, Hoseo University, Asan, Chungnam, 31499, Korea.

出版信息

Sci Rep. 2019 Sep 25;9(1):13885. doi: 10.1038/s41598-019-50181-5.

DOI:10.1038/s41598-019-50181-5
PMID:31554840
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6761258/
Abstract

The electrohydrodynamic (EHD) jet spraying process is a good method for making quantum dot (QD) layers in light-emitting diodes (LEDs). However, controlling the morphology and large-scale fabrication of the QD layers are critical for realizing all-solution-processed QD-LEDs with high performance. Three spraying techniques were used with the EHD jet spraying technique: a big circular film method, a spiral-line method, and a straight-line method. These techniques were used to obtain QD films with good uniformity. The straight-line spray showed the most promise to obtain a uniform QD layer with large area, and QD-LEDs made with this method showed better performance with a low turn-on voltage of 3.0 V, a luminance of 7801 cd/m, and a maximum current efficiency of 2.93 cd/A.

摘要

电流体动力学（EHD）喷射工艺是在发光二极管（LED）中制备量子点（QD）层的一种好方法。然而，控制量子点层的形貌和大规模制备对于实现高性能的全溶液处理量子点发光二极管至关重要。采用了三种喷射技术与EHD喷射技术相结合：大圆形薄膜法、螺旋线法和直线法。这些技术用于获得具有良好均匀性的量子点薄膜。直线喷雾在获得大面积均匀量子点层方面最具前景，用这种方法制成的量子点发光二极管表现出更好的性能，开启电压低至3.0 V，亮度为7801 cd/m，最大电流效率为2.93 cd/A。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/39a4df22dc32/41598_2019_50181_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/7e878446c07b/41598_2019_50181_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/ffac31a1129b/41598_2019_50181_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/ba2d6c0cfa24/41598_2019_50181_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/0f60f870d962/41598_2019_50181_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/0096a11f1f6a/41598_2019_50181_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/fc6c54727a05/41598_2019_50181_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/e297209bff5a/41598_2019_50181_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/c5a41ba97a7d/41598_2019_50181_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/39a4df22dc32/41598_2019_50181_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/7e878446c07b/41598_2019_50181_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/ffac31a1129b/41598_2019_50181_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/ba2d6c0cfa24/41598_2019_50181_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/0f60f870d962/41598_2019_50181_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/0096a11f1f6a/41598_2019_50181_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/fc6c54727a05/41598_2019_50181_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/e297209bff5a/41598_2019_50181_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/c5a41ba97a7d/41598_2019_50181_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3cfc/6761258/39a4df22dc32/41598_2019_50181_Fig9_HTML.jpg

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