MeV carbon ion irradiation-induced changes in the electrical conductivity of silver nanowire networks

作者：Bari Bushra; Honey Shehla; Morgan Madhuku; Ahmad Ishaq^*; Khan Rauf; Muhammad Arshad; Alamgir Khalid; Naseem Shahzad; Malik Maaza

来源：Current Applied Physics, 2015, 15(5): 642-647.

DOI：10.1016/j.cap.2015.02.023

• Ag nanowires
• C+ ion irradiation
• Nano-welding
• Electrical conductivity

MeV carbon ion irradiation-induced changes in the electrical conductivity of Silver nanowire (Ag-NW) networks is demonstrated systematically at different C+ ion fluences ranging from 1 x 10(12) to 1 x 10(16) ions/cm(2) at room temperature. At low C+ ion fluences, the electrical conductivity of Ag-NWs decreases and subsequently increases with increase fluence. Finally, at high C+ ion fluences, conductivity again decreases. The variation in the electrical conductivity of Ag NW network is discussed after analysis using scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. The observed increase in electrical conductivity is thought to be due to ion induced coalescence of Ag-NWs at contact position, which causes reduction of wire-wire contact resistance, while the decrease in electrical conductivity may be due to defect production by C+ ions into Ag-NWs. Ion beam technology is therefore a very promising technology that is capable of fabricating highly conductive Ag-NW networks for transparent electrodes. Moreover, a method for thinning, slicing and cutting of Ag-NWs using ion beam technology is also reported.

• 出版日期2015-5
• 单位UNESCO