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. 2019 Jul 11;14(1):230.
doi: 10.1186/s11671-019-3071-2.

Electrical Properties of Double-Sided Polymer Surface Nanostructures

Man Zhang  1   2 , Liangping Xia  3   4 , Suihu Dang  3 , Axiu Cao  5 , Lifang Shi  5 , Hui Pang  5 , Chunlei Du  3
Affiliations

Electrical Properties of Double-Sided Polymer Surface Nanostructures

Man Zhang et al. Nanoscale Res Lett. .

Abstract

In this study, double-sided polymer surface nanostructures are fabricated using twice nanoimprint lithography and metal deposition technique. We perform electrical property measurement on these double-sided surface nanostructures. Open-circuit voltage and short-circuit current of the as-prepared samples with double-sided surface nanostructures and conductive electrode are recorded using an oscilloscope with applying different external force. The measurements are carried out at room temperature. We find that the intensity of open-circuit voltage and short-circuit current for the double-sided surface nanostructures depends strongly on the sizes, shapes, and arrangements of nanostructures and pressure force. The strongest electrical property can be observed in the hexagon nanopillar arrays with the diameter of about 400 nm containing sub-50-nm resolution sharp structures at the force of about 40 N. We discuss the physical mechanisms responsible for these interesting research findings. The experimental results we study are relevant to the applications of double-sided surface nanostructures such as a nanogenerator, pressure sensors, and nano-optoelectronic devices.

Keywords: Double-sided nanostructures; Electrical properties; Nanoimprint lithography; Open-circuit voltage; Pressure force; Short-circuit current.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
SEM images of two kinds of surface nanostructures. A grating (a) and a nanopillar array (b) are shown
Fig. 2
Fig. 2
Schematic of the double-sided polymer nanostructures
Fig. 3
Fig. 3
Photograph of experiment setup applying external force
Fig. 4
Fig. 4
The electrical properties for surface nanostructures. The results for grating (a, b) and a nanopillar array (c, d) are shown
Fig. 5
Fig. 5
SEM images of three nanopillar arrays. Random (a) and square arrangement (b) circular nanopillars, hexagon arrangement and shape nanopillar arrays (c), and magnification image of hexagon nanopillars (d) are shown
Fig. 6
Fig. 6
The electrical properties for three kinds of nanopillar arrays, such as open-circuit voltage (a) and short-circuit current (b)
See this image and copyright information in PMC

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