摘要
聚合物复合光子晶体可由弹性聚合物基体与胶体光子晶体阵列复合而成,能够通过外部刺激调节胶体粒子间的晶格间距,进而实现结构色的变化,在溶剂比色传感领域具有良好的应用前景。然而,仅依靠溶剂对聚合物基体的溶胀或收缩来实现光子晶体材料的比色传感,往往会限制溶剂传感的灵敏度。因此,本文采用牺牲模板法制备了具有反蛋白石结构的聚二甲基硅氧烷(PDMS)光子晶体弹性体。通过聚合物基体的溶胀或收缩以及反蛋白石结构孔洞的填充,提高了对有机溶剂的比色传感能力。结果表明,PDMS光子晶体弹性体对单一以及混合有机溶剂展现出灵敏的传感能力。更重要的是,PDMS光子晶体弹性体在溶剂传感前后保持了稳定的光学和力学性能,这使得其在比色传感应用中具有良好的重复使用性。本研究为开发具有优异传感性能的响应型光子晶体材料提供了新思路,并促进了基于溶剂的比色传感器在实际应用中的发展。
Polymeric photonic composites can be formed by integrating an elastic polymer matrix with a colloidal photonic array.The structural color change can be achieved by adjusting the lattice spacing between colloidal particles through external stimuli,showing promising applications in solvent colorimetric sensing.However,relying solely on solvent-induced swelling or shrinking of the polymer matrix to achieve colorimetric sensing in photonic materials limits the sensitivity of solvent detection.In this study,we fabricated polydimethylsiloxane(PDMS)photonic elastomers with inverse opal structures using a sacrificial template method to enhance their colorimetric sensing of organic solvents by exploiting the expansion(or contraction)of the polymer matrix and the filling of voids in the inverse opal structure.The results indicate that PDMS photonic elastomers exhibit sensitive sensing capabilities for both single and mixed organic solvents.More importantly,the optical and mechanical properties of the PDMS photonic elastomers remain stable before and after solvent sensing,providing the material with excellent reusability in colorimetric sensing applications.This research opens new avenues for developing responsive photonic materials with superior sensing performance,fostering the advancement of solvent-based colorimetric sensors in practical applications.
作者
王禹皓
周惊如
李苗苗
刘学清
WANG Yuhao;ZHOU Jingru;LI Miaomiao;LIU Xueqing(School of Optoelectronic Materials&Technology,Flexible Display Materials and Technology Co-innovation Center of Hubei Province,Jianghan University,Wuhan 430056,Hubei,China;Key Laboratory of Materials Chemistry for Energy Conversion and Storage(HUST),Ministry of Education,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China)
出处
《江汉大学学报(自然科学版)》
2025年第4期5-13,共9页
Journal of Jianghan University(Natural Science Edition)
基金
国家自然科学基金青年科学基金项目(52403092)
江汉大学重大创新支持计划项目(2023ZDCX01)。
关键词
聚合物复合光子晶体
反蛋白石结构
溶剂比色传感器
无角度依赖的结构色
polymeric photonic composites
inverse opal structures
solvent colourimetric sensors
angle-independent structural colors
