Flexible quantum dots color conversion layer fabricated via laser direct writing technique for Micro-LED

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2024-09-19 DOI:10.1016/j.jlumin.2024.120902

Ruoxi Huang , Deyi Yao , Kaichen Sun , Qihang Liu , Zhonghua Xu , Rongqiu Lv , Teng Ma , Jun Chen

引用次数: 0

Abstract

With the continuous increase in research and market demand for display, Micro-light-emitting diode (Micro-LED) has become one of the current research hotspots in the display industry due to its outstanding performance in color, resolution, life, and energy consumption. In this study, all-inorganic perovskite quantum dots (QDs) were synthesized using a hot injection method and uniformly coated on the surface of a polyethylene terephthalate (PET) substrate. Subsequently, laser processing technology was used to pattern the QDs film, achieving precise pattern design. Even after bending the film 100 times, the peak intensity of photoluminescence could still reach over 50 % compared with that of unbending. We used these specially treated flexible QDs films as the color conversion layers to realize color conversion display of Micro-LED. This research provides a research direction for the development of new display technology.

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通过激光直写技术为微型 LED 制备柔性量子点色彩转换层

随着显示领域研究的不断深入和市场需求的不断增长，微型发光二极管（Micro-LED）因其在色彩、分辨率、寿命和能耗等方面的优异表现，已成为当前显示领域的研究热点之一。本研究采用热注入法合成了全无机过氧化物量子点（QDs），并将其均匀涂覆在聚对苯二甲酸乙二醇酯（PET）基底表面。随后，利用激光加工技术将 QDs 薄膜图案化，实现了精确的图案设计。即使将薄膜弯曲 100 次，光致发光的峰值强度仍可达到未弯曲时的 50% 以上。我们利用这些经过特殊处理的柔性 QDs 薄膜作为色彩转换层，实现了 Micro-LED 的色彩转换显示。这项研究为新型显示技术的发展提供了一个研究方向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.