Optimization on structure and process parameters of stretchable photonic crystal based on polychromatic sets for mechanochromism

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Sensors and Actuators A-physical Pub Date : 2025-03-12 DOI:10.1016/j.sna.2025.116448

Pengfei Zhao , Bo Li , Ye Li , Zhengzhao Gu , Pu Wu , Lixia Cheng , Teng Wang , Hualing Chen

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Abstract

Stretchable photonic crystals (SPCs) can regulate the structural color by deformation causing the variation of the lattice constant, which endows it with broad prospects in the fields of smart wear, flexible display, and dynamic camouflage, etc. The reasonable determination of the structure and process parameters of SPCs is crucial for their mechanochromic properties. However, the current determination of structure and process parameters of SPCs are almost entirely based on the experience of researchers, which makes it difficult for people to design high- properties flexible color changing devices according to variable requirements in practical application. Herein, the optimization method on structure and process parameters of SPCs are investigated. Firstly, the influence of lattice structure parameters on the properties of SPCs is studied through numerical calculations, including lattice arrangement modes, lattice constants, as well as shapes and sizes of lattice unit. In addition, the influence of process parameters on the properties of SPCs is studied through experimental tests and analysis, including material types, material ratios, and additives. Eventually, a multi-objective optimization model for structure and process parameters of SPCs is established based on polychromatic sets according to the simulation analysis and experimental test data obtained in this paper, providing a basis for determination of appropriate structure and process parameters for specific application requirements. The model is used to calculate the functional correlation of six typical schemes, and the result showed that ‘scheme 2’ has the highest functional correlation of 15.788, which was the optimal solution. The calculation results are consistent with the experimental results, verifying the feasibility of the model. This study may not only establish an optimization model for structure and process parameters of SPCs but also provides a new way for the selection design of flexible mechanochromic devices.

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基于机械变色多色集的可拉伸光子晶体结构和工艺参数优化

可拉伸光子晶体（SPCs）可以通过形变引起晶格常数的变化来调节结构颜色，这使其在智能穿戴、柔性显示和动态伪装等领域具有广阔的前景。合理确定SPCs的结构和工艺参数对其力学变色性能至关重要。然而，目前SPCs的结构和工艺参数的确定几乎完全基于研究人员的经验，这使得人们很难在实际应用中根据不同的要求设计出高性能的柔性变色装置。在此基础上，研究了SPCs结构和工艺参数的优化方法。首先，通过数值计算研究了晶格结构参数对SPCs性能的影响，包括晶格排列模式、晶格常数以及晶格单元的形状和大小。此外，通过实验测试和分析，研究了工艺参数对SPCs性能的影响，包括材料类型、材料配比和添加剂。最后，根据本文获得的仿真分析和实验测试数据，建立了基于多色集的SPCs结构和工艺参数多目标优化模型，为确定适合具体应用需求的结构和工艺参数提供了依据。利用该模型计算了6种典型方案的功能相关性，结果表明，方案2的功能相关性最高，为15.788，是最优方案。计算结果与实验结果吻合较好，验证了模型的可行性。本研究不仅建立了柔性机械致色器件的结构和工艺参数优化模型，而且为柔性机械致色器件的选型设计提供了新的途径。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...