Study on the oxidation of copper nanowire network electrodes for skin mountable flexible, stretchable and wearable electronics applications

Hong, Insic; Lee, Seunggon; Kim, Dongkwan; Cho, Hyunmin; Roh, Yeonwook; An, Hyeongi; Hong, Sukjoon; Ko, Seung Hwan; Han, Seungyong

doi:10.1088/1361-6528/aaf35c

Cited by 47 publications

(32 citation statements)

References 22 publications

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“…Luckily, protection methods for Cu NW TEs have been reported to prolong their long-term stability. Normally, to prevent a Cu NW network from oxidation, the Cu NWs were always coated with a passivation layer, including stable metals or metal oxides, 17,117,118 graphene 119 and organics. 120–123 …”

Section: Protection Of Cu Nws From Oxidationmentioning

confidence: 99%

Recent progress of solution-processed Cu nanowires transparent electrodes and their applications

Tian

2019

RSC Adv.

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Section: Protection Of Cu Nws From Oxidationmentioning

confidence: 99%

Recent progress of solution-processed Cu nanowires transparent electrodes and their applications

Tian

2019

RSC Adv.

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“…Cu has received considerable attention as an alternative to ITO and noble metals (Au, Ag) owing to its remarkably low cost and superior electrical conductivity [57][58][59][60][61][62]. Cu has a low electrical resistivity (1.68 μΩ cm), which is similar to that of Ag (1.58 μΩ cm) and lower than that of Au (2.21 μΩ cm), but is 100 times less expensive because it is 1000 times more abundant [63].…”

Section: Cuomentioning

confidence: 99%

Laser digital patterning of conductive electrodes using metal oxide nanomaterials

et al. 2020

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As an alternative approach to the conventional deposition and photolithographic processes, the laser digital patterning (LDP) process, which is also known as the laser direct writing process, has attracted considerable attention because it is a non-photolithographic, non-vacuum, on-demand, and cost-effective electrode fabrication route that can be applied to various substrates, including heat-sensitive flexible substrates. The LDP process was initially developed using noble metal nanoparticles (NPs) such as Au and Ag because such materials are free from oxidation even in a nanosize configuration. Thus, the NPs must be fused together to form continuous conductive structures upon laser irradiation. However, common metals are easily oxidized at the nanoscale and exist in oxidized forms owing to the extremely large surface-to-volume ratio of NPs. Therefore, to fabricate conductive electrodes using common metal NPs via the LDP process, laser irradiation should be used to sinter the NPs and simultaneously induce additional photochemical reactions, such as reduction, and defect structure modification to increase the conductivity of the electrodes. This review summarizes recent studies on the LDP process in which metal oxide NPs, such as ITO, ZnO, CuO, and NiO, were exclusively utilized for fabricating conductive electrodes. The outlook of the LDP process for these materials is also discussed as a method that can be used together with or as a replacement for conventional ones to produce next-generation transparent conductors, sensors, and electronics.

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“…The transparent conductor made from nanoparticle can be flexible but usually does not work at high stretchable condition. More advanced applications for transparent flexible/transparent conductor can be found in metal nanowires including silver [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] and copper [29][30][31][32][33] nanowire percolation networks. Most metal nanowire percolation network research as the ITO replacement started for flexible transparent conductor but recently it was found that the similar metal percolation network can be applied for highly stretchable transparent electrode.…”

Section: Low Temperature Materials Development For Flexible/stretchablmentioning

confidence: 99%

70‐2: Low Temperature Process and Material Development for Flexible/Stretchable Transparent Conductor

2020

Symp Digest of Tech Papers

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Flexible/stretchable electronics and displays have become the core technologies for future portable and wearable electronics due to its flexibility and light weight. Most of flexible electronics and display are built on the heat sensitive plastics substrates which is usually not well compatible with conventional photolithography processes that usually use high temperature and corrosive etchants. Therefore, there is a strong need to develop a novel low temperature process to realize flexible electronics and display on the conventional heat sensitive polymer substrate materials. In this paper, the recent development for the low temperature process compatible with plastic substrate will be reviewed in both materials and process aspects. Furthermore, very recent trends in stretchable electronics and transparent electronics will be discussed as well.

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Study on the oxidation of copper nanowire network electrodes for skin mountable flexible, stretchable and wearable electronics applications

Cited by 47 publications

References 22 publications

Recent progress of solution-processed Cu nanowires transparent electrodes and their applications

Recent progress of solution-processed Cu nanowires transparent electrodes and their applications

Laser digital patterning of conductive electrodes using metal oxide nanomaterials

70‐2: Low Temperature Process and Material Development for Flexible/Stretchable Transparent Conductor

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