Vol.5 No.1 (February 2015)
Electrospinning Fabrication and Piezoelectric Voltage Generation Performance of K0.5Na0.5NbO3 Nanofibers
The lead-free K0.5Na0.5NbO3 (KNN) nanofibers were fabricated through sol-gel electrospinning process. The effects of annealing temperature and electrospinning voltage on the phase and mor-phology of the products were investigated. The results show that the annealed nanofibers are or-thorhombic perovskite structured KNN materials. The increase of annealing temperature will lead to the increase of average grain size. When the electrospinning voltage is increased from 6 to 12 kV, the diameter of the nanofibers will be firstly increased and then decreased. By integrating the KNN nanofibers onto the interdigital electrodes, the piezoelectric generator can be obtained, which can generate impulsive alternative voltage. The amplitude of the output voltage is up to 190 - 430 mV, and will increase with the electrode spacing.
王 钊 , 吴桂泰 , 贺亚华 , 潘绪敏 (2015) 静电纺丝制备K0.5Na0.5NbO3纳米纤维及其压电发电性能研究。 纳米技术， 5， 1-6. doi: 10.12677/NAT.2015.51001
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