کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
751028 | 895188 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-speed optical humidity sensors based on chiral sculptured thin films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High-speed optical humidity sensors based on chiral sculptured thin films High-speed optical humidity sensors based on chiral sculptured thin films](/preview/png/751028.png)
چکیده انگلیسی
A high-speed humidity sensor based on a nanostructured chiral sculptured thin film (CSTF) was fabricated and tested. The sensing principle is based on the shift of the central wavelength of the circular Bragg regime of the CSTF caused by adsorption and desorption of water vapor in the void regions of the CSTF. Spectral changes due to varying relative-humidity (RH) levels in the ambient environment were measured by a spectrometer. The CSTF sensor exhibited excellent reversibility and reproducibility from 40% to 100% RH. Moreover, the adsorption time of the sensor was measured to be as low as ∼140 ms, making it promising for many high-speed humidity-sensing applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 156, Issue 2, August 2011, Pages 593–598
Journal: Sensors and Actuators B: Chemical - Volume 156, Issue 2, August 2011, Pages 593–598
نویسندگان
Yan Jun Liu, Jinjie Shi, Fan Zhang, Huinan Liang, Jian Xu, Akhlesh Lakhtakia, Stephen J. Fonash, Tony Jun Huang,