A study of PVDF langmuir-blodgett thin film using quartz crystal microbalance

作者：Ying, Zhihua; Jiang, Yadong^*; Du, Xiaosong; Xie, Guangzhong; Yang, Yajie

来源：Journal of Applied Polymer Science, 2007, 106(2): 1024-1027.

DOI：10.1002/app.26731

• QCM sensor
• PVDF
• DMMP
• LangmuirBlodgett (LB)

Poly(vinylidene fluoride) (PVDF) was deposited onto a quartz crystal microbalance (QCM), using a standard Langmuir-Blodgett (LB) thin film deposition procedure. QCM technique was used to monitor the reproducibility of the LB film monolayer, and the fabricated QCM sensor was employed to detect the dimethyl methyl phosphonate (DMMP) vapor, a simulant of nerve agents. The results show that PVDF was successfully deposited from the water surface onto the quartz crystal substrate. The PVDF LB film is found to be highly sensitive to DMMP vapor, and frequency shifts are linear to the concentrations. The response of the sensor against DMMP is fast, large, and reversible.

• 出版日期2007-10-15
• 单位电子科技大学