工學院: 材料科學與工程學研究所指導教授: 林唯芳李澤軒Lee, Tse-HsuanTse-HsuanLee2017-03-032018-06-282017-03-032018-06-282016http://ntur.lib.ntu.edu.tw//handle/246246/273199近年來，環境安全衛生意識逐漸引起大眾的關注，人們不再為了經濟發展而對於自身健康安全以及環境保護有所妥協。在傷害人類健康以及造成環境破壞的毒化物中，最令人憂心的是有毒之有機揮發性化合物(volatile organic compounds, VOC)，工廠裡產品的生產以及材料的合成過程常伴隨著VOC的排放。雖然我們知道VOC的危險而且同時大量地使用，但現階段對於VOC警示濃度的偵測並沒有一個有效的預警系統，這些看不見也摸不著的有毒氣體帶給人類無法預防的威脅。所以，現階段對於低成本以及高效率的VOC偵測器有其迫切的需求。 以P3HT混摻PC71BM製成的氣體偵測器，在先前的工作中已證明其是為有效且成本低廉的偵測方法。本研究透過奈米粒子的氟化改質成功將此系統之偵測極限大幅提升了2-3倍。同時，我們也使用GISAXS/GIWAXS及多項分析儀器鑑定摻有氟化奈米粒子的感測層形貌，並將測層形貌對應到其在VOC偵測上的表現，最後，我們發現好的分散性是氟化奈米粒子提升敏感度的關鍵因素。 除了氣體偵測器形貌以及其VOC之偵測表現外，我們同時也針對偵測試片在不同溫度下做穩定性測試，由結果來看，我們的試片建議存放於25oC下較可以確保試片的穩定。另一方面，我們將感測層塗佈於導電基材上，使得試片之生命週期提升兩倍。綜合以上幾點，本研究除了在基礎科學的研究上有所貢獻也成功地增加VOC偵測器實際的應用價值。Human health care and environmental protection have growing attention in recent years, and are no longer an acceptable trade-off for economy for the majority of people. The most hazardous and toxic chemicals are volatile organic compounds (VOC), which are mainly released from oil refinery, factory ,household paints, etc. Although VOCs are used extensively and known for their hazardous , little protective measurements have been developed to provide effective warning signal before the harmful high level of VOC. These invisible and toxic VOC put the human safety into dangerous condition without notice. Thus, there is an urgent need to develop a high efficient, low cost VOC sensor to ensure the health and safety of mankind. We have demonstrated before, a low cost and effective VOC sensor can be fabricated from P3HT/PC71BM nanocomposite on glass substrate. In the work, we further improve the sensitivity of VOC sensor 2-3 times by incorporating fluorinated PC71BM in the nanocomposite. We also utilize GISAXS/GIWAXS, AFM, XPS etc instruments to characterize the structure of sensing layer. As the result, we correlate the morphology of sensing layer to the performance of VOC sensing, which reveals that the improved dispersion of F-PC71BM in P3HT is the key factor to improve the sensitivity of sensor. Besides the study of the performance and morphology of VOC sensor, stability test of VOC sensor under various temperature was also conducted to estimate the life time of the sensor. Our sensor needs to be stored under 25oC temperature for a life more than 3 months. Furthermore, we show the life time of sensor can be doubled by coating the sensing layer onto the conductive substrate ITO.6133003 bytesapplication/pdf論文公開時間: 2016/8/25論文使用權限: 同意有償授權(權利金給回饋學校)有機揮發物檢測器奈米複合材料氟化改質形貌研究導電高分子富勒烯volatile organic compoundnanocompositefluorinationmorphologyconducting polymerfullerenesensor.[SDGs]SDG3[SDGs]SDG12thesis10.6342/NTU201603326http://ntur.lib.ntu.edu.tw/bitstream/246246/273199/1/ntu-105-R03527069-1.pdf