Study of fluorescent-conductive bifunctional coaxial nanobelts arrays

Coaxial nanobelts array with fluorescence and electrical conductivity was prepared through electrospinning technology. Each coaxial nanobelt consists of a conductive core and a fluorescent shell. X-ray diffractometry, scanning electron microscopy, biological microscopy, electrical measurement system and fluorescence spectroscopy were employed to characterize the samples. The results revealed that the prepared nanobelts have obvious coaxial structures. The thickness and width of the obtained coaxial nanobelts are about 1 µm and 4 µm, respectively. Every single coaxial nanobelt in the array is independently conductive. The fluorescent intensity can be tuned by adjusting the contents of fluorescent materials and conductive substances under single-wavelength UV excitation. In addition, the electrical conductivity of the core of coaxial nanobelt can be adjusted by changing the content of conductive substances.