Using ferroelectric materials which exhibit the combination of large piezoelectric coefficients and good flexibilities as nanogererator is desirable for improving the electric output. In this work, a flexible nanogenerator based on single BaTiO 3 nanowire is described. The flexible nanogenerator can generate an output voltage of up to 0.21 V and current of 1.3 nA by periodically bending and releasing the substrate. The electric outputs were found to be proportional to the strain and strain rate. Furthermore, the electric output was enhanced by connecting two generators in series and in parallel with the correct polarity and sequence. Therefore, the flexible nanogenerator demonstrates the energy harvesting using BaTiO 3 nanowires and the increase of the output electricity through integration of BaTiO 3 nanowires.

No abstract

No abstract

In the circuit of semiconductor, ESD usually occurred between two lines which are closed to each other. To study the how to improve the anti-ESD of current design, the test lines for both first gate ad last gate are compared. The two test lines go cross over another line but they are different length. The products were exposed to the same rich-static environment to test their anti-ESD ability. Result shows that the longer the line is, the more possibilities of the ESD is, especially when the length difference exceeds 14%. The result would direct the design of the micro circuit by dividing long line into several short-line of semiconductor, which would reduce the probability of ESD.

An electrostatic film vibration voltage transducer（EFVVT，Electrostatic Film Vibration Voltage Transducer）is presented in this paper. The theoretical model is derived particularly. A high voltage is measured based on sensing of the film vibration displacement. The application of high precision measurement method of the film micro-displacement is also introduced into the EFVVT. The simulation measurement system is built up by the transfer function in the Simulink environment and the result shows that the measurement accuracy of the EFVVT is good enough which can reach a 0.2 class in the 110kV voltage level in a 20%~150% rated voltage range.