Silk fibroin thin films for optical humidity sensing

IF 2.3 4区物理与天体物理 Q2 OPTICS

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI:10.1117/12.2536659

M. Procek, Z. Opilski, Augusto Márquez Maqueda, Xavier Muñoz Berbel, S. Aznar-Cervantes, José Luis Cenis, Carlos Domínguez Horna

引用次数: 2

Abstract

In this paper optical properties of silk fibroin (SF) thin films obtained via spin coating method are investigated. Work concentrates on the experimental examination of influence of relative humidity (RH) in the range of 7-90% in air on the changes of SF refractive index, thickness and optical path at room temperature. Spectral ellipsometry and interference methods are used for the SF thin films optical properties measurements. The sensing structure response value, response time and recovery time are presented. The results shows that RH significantly influenced the SF thin films thickness and refractive index what should be taken into account during the designing of optical devices based on SF. It also shows that SF thin films are promising material for room temperature RH sensors.

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光学湿度传感用丝素薄膜

本文研究了用自旋镀膜法制备的丝素薄膜的光学性质。重点研究了室温下空气相对湿度(RH)在7 ~ 90%范围内对SF折射率、厚度和光程变化的影响。采用椭偏光谱法和干涉法测量了SF薄膜的光学特性。给出了传感结构的响应值、响应时间和恢复时间。结果表明，相对湿度对顺波薄膜的厚度和折射率有显著影响，这是设计基于顺波的光学器件时应考虑的问题。这也表明SF薄膜是一种很有前途的室温相对湿度传感器材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fiber and Integrated Optics 物理-光学

CiteScore

3.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Fiber and Integrated Optics , now incorporating the International Journal of Optoelectronics, is an international bimonthly journal that disseminates significant developments and in-depth surveys in the fields of fiber and integrated optics. The journal is unique in bridging the major disciplines relevant to optical fibers and electro-optical devices. This results in a balanced presentation of basic research, systems applications, and economics. For more than a decade, Fiber and Integrated Optics has been a valuable forum for scientists, engineers, manufacturers, and the business community to exchange and discuss techno-economic advances in the field.