Electrochemical regulation of graphene infrared image display based on high-efficiency lithium ions intercalation method

IF 3.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Vacuum Pub Date : 2024-11-17 DOI:10.1016/j.vacuum.2024.113842

Longhao Liu , Kaixi Bi , Ganying Zeng , Yan Zhuang , Shuqi Han , Shengguo Zhang , Linyu Mei

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Abstract

With the advancement of infrared modulation technologies, infrared display devices have attracted increasing attention. Previous studies have mainly focused on the response time of infrared display devices and have achieved great success. Nevertheless, owing to the restricted material properties or modulation approaches, the response time of the majority of infrared modulating devices remains trapped at level for a few seconds. In this paper, we fabricated an infrared images display device based on lithium-ion intercalated multilayer graphene (MLG). By changing the lithium-ion content and current value, we had successfully improved its response time from approximately 140,000 ms to around 6 ms.Meanwhile, its absorbance also has significant changes within 0.8–1.8 μm (∼75 %–∼25 %) and 2.5–25 μm (∼45 %–∼2 %). In addition, multi-pixel infrared display unit has been realized on a flexible substrate. The letters "N, U, and C″ were dynamically displayed continuously at 3∗3 pixels by controlling lithium-ions intercalate MLG state. Our work is expected to provide theoretical and technological support for ultrafast flexible dynamic infrared display devices.

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基于高效锂离子插层法的石墨烯红外图像显示的电化学调控

随着红外调制技术的发展，红外显示设备越来越受到人们的关注。以往的研究主要集中在红外显示设备的响应时间上，并取得了巨大成功。然而，由于材料特性或调制方法的限制，大多数红外调制器件的响应时间仍停留在几秒钟的水平。在本文中，我们制作了一种基于锂离子插层多层石墨烯（MLG）的红外图像显示设备。通过改变锂离子含量和电流值，我们成功地将其响应时间从约 14 万毫秒提高到约 6 毫秒。同时，其吸光度在 0.8-1.8 μm （∼75 %-∼25 %）和 2.5-25 μm （∼45 %-∼2 %）范围内也有显著变化。此外，还在柔性基板上实现了多像素红外显示单元。通过控制锂离子插层 MLG 状态，字母 "N、U 和 C "在 3∗3 像素上连续动态显示。我们的工作有望为超快柔性动态红外显示设备提供理论和技术支持。

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.