Fabrication and electrical characterization of highly ordered copper nanowires

Abstract

The template-assisted electrodeposition technique has been employed to synthesize highly ordered: uniformly dense, well-aligned, parallel and homogeneous copper nanowires. Their morphological studies have been carried out using the scanning electron microscopy and transmission electron microscopy. The X-ray diffraction study exhibits cubic structure of the nanowires and their preferred orientation along the direction [111]. Their elemental composition has been done by energy dispersive X-ray analysis. The photoluminiscence spectra of copper nanowires show two excitation peaks at 209 and 268 nm; both these absorption pathways yield fluorescence at 296 nm. Their UV-Vis absorption spectra have been found to give a prominent peak at 570 nm. The current-voltage characteristics of the nanowires reveal their non-linear behavior. The impedance spectroscopy has also been carried out and it shows an increase in their impedance at higher frequencies.

1D Copper Nanostructures: Progress, Challenges and Opportunities

“…Similarly, interesting non‐linear I–V characteristics were observed for CuNW arrays . In addition, the impedance was analysed at frequencies between 0.2 Hz and 1.0 MHz using impedance spectroscopy.…”

“…1D nanostructures of copper have shown interesting trends in electron transport properties. The CuNWs, in certain cases, exhibit ohmic behaviour (linear current–voltage characteristics), while in other cases a tunnelling‐type behaviour (non‐linear current–voltage characteristics) is observed. Surface chemistry plays a significant role in such linear versus non‐linear I–V behaviour .…”

The Roles of Hydrazine and Ethylenediamine in Wet Synthesis of Cu Nanowire

“…Many authors have studied different kinds methods to synthesize copper nanowires, including synthesis using template materials [1][2][3][4][5][6], solvothermal or hydrothermal [7,8], and wet synthesis [9][10][11][12][13]. Although the template technique produces a quite clean and straight copper nanowires, but the process requires cleaning the sacrificed materials which considered as a delicate and time-consuming process.…”

“…Although the template technique produces a quite clean and straight copper nanowires, but the process requires cleaning the sacrificed materials which considered as a delicate and time-consuming process. The solvothermal and template technique might produce a long nanowire ranging about hundred nanometers in diameter with ten micrometers in length [1][2][3][4][5][6][7][8], but the process usually took a number of hours. And therefore, it is considered as time-consuming.…”

Fabrication of micro/nanowire fibres, novel fibre devices and their applications

“…In the meantime, various kinds of techniques have been also explored to synthesize metallic nanowires -electrochemical approaches [16][17][18], nanoimprint lithography [19], synthetic chemical routes [20], and template assisted technique [21], chemical vapor deposition (CVD) [22], and electric arc discharge methods [23]. To overcome the limitations (cost, efficiency, or mass production) of above-mentioned techniques, electrospinning technique has been proposed [24,25] and developed recently [26][27][28] to achieve metallic, polymeric, and ceramic nanowires.…”