【摘 要】
：
ZnO nanofibers with an average diameter of about 90 nm were prepared by an electrospinning method combined with a calcination process.The as-electrospun nanofib
【机 构】
：
State Key Laboratory on Integrated Optoelectronics
【基金项目】
：
国家自然科学基金;the National High-Tech Research and Development Program of China;the Doctoral Fund of Ministry of Education of China
论文部分内容阅读
ZnO nanofibers with an average diameter of about 90 nm were prepared by an electrospinning method combined with a calcination process.The as-electrospun nanofibers before and after calcination were characterized by means of differential thermal analysis(DTA),thermal gravimetric analysis(TGA),X-ray diffraction(XRD) and scanning electron microscopy(SEM).The fibers after calcination at 600 ℃ belong to the hexagonal wurtzite structure.The sensor based on ZnO nanofibers exhibited excellent ethanol sensing properties at 206 ℃ such as good linear dependence in the low concentration(1-100 μL/L),high response,and good selectivity.Fast response(less than 2 s)and recovery(about 16 s) were also observed in our investigations.
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