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基于硅烷功能化TiO纳米颗粒的高反射有机/无机杂化一维光子晶体用于比色湿度和酒精蒸汽传感

Highly Reflective Organic/Inorganic Hybrid 1D Photonic Crystals Based on Silane-Functionalized TiO Nanoparticles for Colorimetric Humidity and Alcohol Vapor Sensing.

作者信息

Hwang Gaeun, Bak Gihyeok, Kim Yejin, Jung Seo-Hyun, Na Hanah, Jung Yu Jin

机构信息

Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Republic of Korea.

出版信息

ACS Omega. 2025 Aug 5;10(32):36582-36591. doi: 10.1021/acsomega.5c05459. eCollection 2025 Aug 19.

DOI:10.1021/acsomega.5c05459
PMID:40852233
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12368819/
Abstract

One-dimensional photonic crystals (1DPCs) have been extensively studied as colorimetric sensors responsive to various external stimuli. Herein, we report a simple spin-coating method to fabricate highly reflective, humidity- and alcohol-responsive organic/inorganic hybrid 1DPCs using silane-functionalized TiO nanoparticles and a DMA-based hydrophilic copolymer. The resulting 1DPCs, composed of a small number of alternating layers (≤8), exhibit distinct color changes and high reflectance (∼50%) in response to humidity and alcohol vapor, addressing the limitations of all-polymeric 1DPCs that require many layers or display low reflectivity. This approach offers a practical and scalable strategy for developing stimuli-responsive photonic crystal films, demonstrating strong potential for high-performance colorimetric sensing applications.

摘要

一维光子晶体（1DPCs）作为对各种外部刺激有响应的比色传感器已得到广泛研究。在此，我们报道一种简单的旋涂方法，使用硅烷功能化的TiO纳米颗粒和基于DMA的亲水性共聚物来制备对湿度和酒精有响应的高反射率有机/无机杂化1DPCs。所得的由少量交替层（≤8）组成的1DPCs，在响应湿度和酒精蒸汽时表现出明显的颜色变化和高反射率（约50%），解决了全聚合物1DPCs需要许多层或显示低反射率的局限性。这种方法为开发刺激响应性光子晶体薄膜提供了一种实用且可扩展的策略，展示了在高性能比色传感应用中的强大潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/3bcad495f10b/ao5c05459_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/2974ccdc0dfa/ao5c05459_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/3b5549c9a88d/ao5c05459_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/58214584a46d/ao5c05459_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/a12c192203a4/ao5c05459_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/954174aa7f78/ao5c05459_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/3bcad495f10b/ao5c05459_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/2974ccdc0dfa/ao5c05459_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/3b5549c9a88d/ao5c05459_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/58214584a46d/ao5c05459_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/a12c192203a4/ao5c05459_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/954174aa7f78/ao5c05459_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eed7/12368819/3bcad495f10b/ao5c05459_0006.jpg

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