Nickel nanowires mesh fabricated by ion beam irradiation-induced nanoscale welding for transparent conducting electrodes

被引：14
作者：
Honey, S. [1 ,3 ,4 ]
Ahmad, I. [2 ,3 ,4 ]
Madhuku, M. [5 ]
Naseem, S. [1 ]
Maaza, M. [3 ,4 ]
Kennedy, J. V. [6 ]
机构：
[1] Univ Punjab, Ctr Excellence Solid State Phys, Lahore, Pakistan
[2] Quaid i Azam Univ, Natl Ctr Phys, Islamabad, Pakistan
[3] Univ South Africa, Coll Grad Studies, UNESCO UNISA Africa Chair Nanosci Nanotechnol, POB 392, Pretoria, South Africa
[4] Natl Res Fdn, iThemba LABS, Nanosci African Network NANOAFNET, Old Faure Rd,POB 722, ZA-7129 Somerset West, South Africa
[5] Natl Res Fdn, iThemba LABS, P Bag X11, ZA-2050 Johannesburg, South Africa
[6] GNS Sci, POB 31312, Lower Hutt, New Zealand
来源：
MATERIALS RESEARCH EXPRESS | 2017年 / 4卷 / 07期
关键词：
Ni-NWs; argon (Ar+) ions; hydrogen (H+) ions; nanoscale welding; optical transmittance; electrical conductivity; CARBON-NANOTUBE; HIGHLY TRANSPARENT; SPRAY DEPOSITION; SILVER; NETWORKS; SILICON; CELLS; OXIDE;
D O I：
10.1088/2053-1591/aa7abc
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this report, random nickel nanowires (Ni-NWs) meshes are fabricated by ions beam irradiation-induced nanoscale welding of NWs on intersecting positions. Ni-NWs are exposed to beam of 50 KeV Argon (Ar+) ions at various fluencies in the range similar to 10(15) ions cm(-2) to 10(16) ions cm(-2) at room temperature. Ni-NWs are welded due to accumulation of Ar+ ions beam irradiation-induced sputtered atoms on crossing positions. Ar+ ions irradiated Ni-NWs meshes are optically transparent and optical transparency is enhanced with increase in beam fluence of Ar+ ions. Ar+ ions beam irradiation-induced welded and optically transparent mesh is then exposed to 2.75 MeV hydrogen (H+) ions at fluencies 1 x 10(15) ions cm(-2), 3 x 10(15) ions cm(-2) and 1 x 10(16) ions cm(-2) at room temperature. MeV H+ ions irradiation-induced local heat cause melting and fusion of NWs on intersecting points and eventually lead to reduce contact resistance between Ni-NWs. Electrical conductivity is enhanced with increase in beam fluence of H+ ions. These welded highly transparent and electrically conductive Ni-NWs meshes can be employed as transparent conducting electrodes in optoelectronic devices.
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页数：8
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