纳米压印醋酸纤维素-二氧化钛复合薄膜

IF 2.5 3区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-03-15 DOI:10.1016/j.photonics.2024.101257
Aeshah F. Alotaibi , Ahmed. Alanazi , Anna Lesniak-Podsiadlo , Aoife Cowen , Brian J. Rodriguez , James H. Rice
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引用次数: 0

摘要

醋酸纤维素是一种安全、可持续发展且具有成本效益的材料,能够通过表面压印等表面加工方法形成纳米结构。利用醋酸纤维素形成光学活性结构可以推动绿色光子器件的设计。在这项工作中,我们创造了一种由纳米级等离子体活性金属半导体肖特基结组成的混合材料。证明这种混合材料在应用于基于拉曼的传感时具有更高的性能。除了通过压印纳米级超材料阵列表面特征产生的光子共振外,还通过金属半导体结的电磁和化学增强机制提高了表面增强拉曼检测灵敏度。这项工作拓展了纤维素基材料在传感应用中的应用。
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Nanoimprinted cellulose acetate-TiO2 composite thin film

Cellulose acetate is a safe, sustainable, and cost-effective material that is capable of forming nanostructures through facial processing methods such as surface imprinting. Forming optically active structures using cellulose acetate can advance green photonic device design. In this work, we create a hybrid material consisting of nanoscale plasmon active metal–semiconductor Schottky junctions. Demonstrating that such a hybrid material possesses improved performance when applied to Raman-based sensing. Boosting surface-enhanced Raman detection sensitivity through electromagnetic and chemical enhancement mechanisms from the metal-semiconductor junction, in addition to photonic resonances created via the imprinted nanoscale metamaterial array surface features. This work expands the use of cellulose-based materials for sensing-based applications.

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来源期刊
CiteScore
5.00
自引率
3.70%
发文量
77
审稿时长
62 days
期刊介绍: This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.
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