Green Light-Responsive Electrochromic Device with Yellow-to-Green Color Switching for Optimizing Adaptive Visible Camouflage Systems

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-06-05 DOI:10.1021/acsami.5c02585

Guoying Shi, Zhiyuan Bai, Rui Fang, Bingwei Bao, Yongsheng Liu, Chengyi Hou, Qinghong Zhang, Yaogang Li, Kerui Li, Hongzhi Wang

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引用次数: 0

Abstract

Compared to static camouflage’s fixed mode, adaptive systems utilizing electrochromic (EC) technology dynamically adjust colors and patterns to fit changing environments, greatly enhancing concealment and adaptability. However, the system necessitates sensing, processing, and EC response modules, which increases complexity and costs. In this work, the photoresponsive cadmium sulfide (CdS) yellow nanoparticles are synthesized and incorporated into an ethyl viologen-based EC ionogel (transparent/blue), thereby endowing the device with the ability to sense green light. Due to the superposition of yellow/blue colors, the device transitions from yellow (bleached state, 0 V) to deep green (colored state, −1.2 V). The yellow and green colors of the device are similar to two common camouflage colors (ΔE < 10) while also exhibiting fast switching speed (t_c/t_b: 2.0/2.5 s) and excellent cycling stability (maintain 98% after 5000 cycles). By connecting with a microcontroller, an adaptive EC camouflage system capable of detecting green light and transitioning from yellow to green is successfully developed. The above results show this system’s application potential and demonstrate the effectiveness of photoresponsive/EC technologies in optimizing adaptive visible camouflage systems.

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用于优化自适应可见伪装系统的具有黄绿切换的绿光响应电致变色装置

与静态伪装的固定模式相比，利用电致变色（EC）技术的自适应系统可以动态调整颜色和图案以适应不断变化的环境，大大提高了隐蔽性和适应性。然而，该系统需要传感、处理和EC响应模块，这增加了复杂性和成本。在这项工作中，光响应的硫化镉（CdS）黄色纳米粒子被合成并加入到乙基紫罗兰基EC离子凝胶（透明/蓝色）中，从而赋予该装置感知绿光的能力。由于黄/蓝叠加，器件由黄色（漂白状态，0 V）过渡到深绿色（有色状态，−1.2 V）。设备的黄色和绿色类似于两种常见的迷彩(ΔE <；10)同时表现出快速的开关速度（tc/tb: 2.0/2.5 s）和优异的循环稳定性（5000次循环后保持98%）。通过与单片机的连接，成功开发了一种能够检测绿光并由黄到绿转换的自适应电子迷彩系统。上述结果显示了该系统的应用潜力，并证明了光响应/EC技术在优化自适应可见伪装系统中的有效性。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.