Nano Archive

Robust Optimization of the Output Voltage of Nanogenerators by Statistical Design of Experiments

Song, Jinhui and Xie, Huizhi and Wu, Wenzhuo and Roshan Joseph, V. and Jeff Wu, C. F. and Wang, Zhong Lin (2010) Robust Optimization of the Output Voltage of Nanogenerators by Statistical Design of Experiments. Nano Research, 3 (9). pp. 613-619.

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Abstract

Nanogenerators were first demonstrated by deflecting aligned ZnO nanowires using a conductive atomic force microscopy (AFM) tip. The output of a nanogenerator is affected by three parameters: tip normal force, tip scanning speed, and tip abrasion. In this work, systematic experimental studies have been carried out to examine the combined effects of these three parameters on the output, using statistical design of experiments. A statistical model has been built to analyze the data and predict the optimal parameter settings. For an AFM tip of cone angle 70° coated with Pt, and ZnO nanowires with a diameter of 50 nm and lengths of 600 nm to 1 μm, the optimized parameters for the nanogenerator were found to be a normal force of 137 nN and scanning speed of 40 μm/s, rather than the conventional settings of 120 nN for the normal force and 30 μm/s for the scanning speed. A nanogenerator with the optimized settings has three times the average output voltage of one with the conventional settings.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanochemistry
ID Code:9677
Deposited By:CSMNT
Deposited On:26 Oct 2010 10:00
Last Modified:26 Oct 2010 10:00

Repository Staff Only: item control page