綿質氣體感測器陣列及超高感度室溫型二氧化硫氣體感測器的製備及感測訊號的辯識

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Title:	綿質氣體感測器陣列及超高感度室溫型二氧化硫氣體感測器的製備及感測訊號的辯識 Fabrication of a Textile-Type Gas Sensor Array and an Ultra-High Sensitivity Room-Temperature So2 Gas Sensor and Recognition of Sensing-Signals
Authors:	蘇平貴
Contributors:	化學系
Keywords:	呼吸照護智慧衣柔軟性及伸縮性化學感測器綿質化學感測器陣列主成份分析法快速傅利葉轉換法多元醇法室溫型二氧化硫氣體感測器物聯網
Date:	2018-2019
Issue Date:	2019-11-14 10:49:50 (UTC+8)
Abstract:	本計畫是將以近年來在科技部計畫經費補助下所開發的可撓性感測元件製造技術及室溫型金屬氧化物半導體式氣體感測器的技術基礎之下，再進一步針對未來穿戴式裝置(wearable devices)的呼吸照護智慧衣(Breath monitoring smart clothes) 來開發、製作具高感度、高選擇性、柔軟化(soft)及伸縮化(stretchable)特性的綿質化學感測器陣列(textile-type chemical sensor array)及室溫型氣體感測器應用於台灣空氣品質物聯網的感測器監測系統。兩年期的計畫，第一年以層接式組裝成膜(Layer-by-layer self-assembled film, LAL SA )技術在單根綿線上成長奈米碳管、氧化石墨烯及聚吡咯等高靈敏性感測材後再編織成感測器陣列應用於濕度、氨氣、一氧化氮及丙酮氣偵測後，再利用主成份分析法或快速傅利葉轉換分析法來辯識各氣體成份。第二年將採用多元醇法來合成奈米級異質結構的三氧化鎢複合材料製備成室溫型金屬氧化物半導體式二氧化硫氣體感測器，並搭配使用不同的波長的發光二極體燈作為UV enhanced的光源，可達到節能省電的功效，使二氧化硫氣體感測模組符合物聯網應用趨勢。 Based on Ministry of Science and Technology of Taiwan for support, we have developed the fabrication of flexible chemical sensors and the room-temperature type metal oxide semiconductors chemical gas sensors. In this study, the high sensitivity, good selectivity, soft and stretchable smart chemical sensor array for using in breath monitoring smart clothes and ultra-high sensitivity room-temperature chemical gas sensor for used in Air Quality of Internet? of ?Things (IoTs). First year, a soft and stretchable textile-type chemical sensor array was fabricated by layer-by-layer self-assembling of carbon nanotubes, graphene oxide and polypyrrole sensing films on a single yarn, and then weaved sensor array. The sensor array was used to sense humidity, NO, NH3 and acetone gases and the response of the sensor array was recognized using principal components analysis (PCA) and fast Fourier transform (FFT). Second year, a room-temperature SO2 metal oxide semiconductor gas sensor that was made of heterojunctions structure of WO3-based nanocomposite materials was fabricated using polyol technique. The sensitivity of the SO2 gas sensor was enhanced by using LED and it exhibited ultra-high sensitivity and low power consumption for application in air quality IoTs.
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