Dynamic Multicolor Display with Wide Color Gamut Enabled by Vanadium Oxide-Based Fabry–Pérot Electrochromic Nanocavities

IF 9.8 1区 物理与天体物理 Q1 OPTICS
Huiying Li, Sheng Cao, Longqiang Bao, Yuwei Liu, Junyao Chen, Shihua Qin, Lin Huang, Lingyu Wan
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Abstract

Inorganic electrochromic (EC) devices with vibrant multicolor variations are at the forefront of EC technology and play a crucial role in display applications. Expanding the dynamic color gamut of a single EC device has long been a subject of investigation. Herein, a design is presented that employs vanadium oxide (VOx) as the EC layer and tungsten (W) as the reflective layer to construct an asymmetric Fabry–Pérot (F–P) nanocavity, enabling wide color gamut EC displays. By leveraging the different thicknesses of VOx, this design allows for a range of color changes from yellow and orange to magenta, purple, blue, cyan, and green through dynamic EC modulation. Notably, a typical single W-VOx (150 nm) F–P nanocavity demonstrates an impressive modulation range of 110 nm, exceeding the capabilities of existing F–P nanocavities. In-depth structural analysis reveals that the insertion and extraction of Li+ ions significantly influence the microstructure and optical properties of VOx film, allowing for greater refractive index adjustment than WO3. This facilitates precise control and expansion of the nanocavity's color range through interference effects. This study provides a new perspective for developing dynamically adjustable wide color gamut EC displays and highlights their potential applications in flexible display technologies.

Abstract Image

基于氧化钒的法布里-帕氏电致变色纳米空腔实现宽色域动态多色显示
具有丰富多彩的无机电致变色器件是电致变色技术的前沿,在显示应用中发挥着至关重要的作用。扩大单个电子元件的动态色域一直是人们研究的课题。本文提出了一种采用氧化钒(VOx)作为EC层,钨(W)作为反射层的设计,以构建不对称的法布里-帕姆罗特(F-P)纳米腔,实现宽色域EC显示。通过利用VOx的不同厚度,这种设计允许通过动态EC调制从黄色和橙色到品红、紫色、蓝色、青色和绿色的一系列颜色变化。值得注意的是,一个典型的单W-VOx (150 nm) F-P纳米腔显示出令人印象深刻的110 nm调制范围,超过了现有的F-P纳米腔的能力。深入的结构分析表明,Li+离子的插入和提取显著影响了VOx薄膜的微观结构和光学性能,使其折射率调节比WO3更大。这有助于通过干涉效应精确控制和扩展纳米腔的颜色范围。该研究为动态可调宽色域电子显示屏的开发提供了新的视角,并突出了其在柔性显示技术中的潜在应用。
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来源期刊
CiteScore
14.20
自引率
5.50%
发文量
314
审稿时长
2 months
期刊介绍: Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.
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