Surface-passivated Cu conductors for high-temperature sulfurous environments

Li, Zheng; Yu, Jian; Khuje, Saurabh; Sheng, Aaron; Navarro, Marieross; Zhuang, Chenggang; Ren, Shenqiang

doi:10.1039/d2na00452f

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…The results show that the dense ZnO shells can effectively isolate the Cl ions and oxygen from contact with Cu atoms. In addition, metal Cu is extremely susceptible to sulfide in sulfur-containing gases and liquids that produce copper sulfide, which will not only blacken but also affect the electrical conductivity of the Cu NWs [50][51][52]. Therefore, improving the sulfur resistance of Cu NWs is also an important research direction.…”

Section: Resultsmentioning

confidence: 99%

Zinc Oxide-Encapsulated Copper Nanowires for Stable Transparent Conductors

Wang,

Yu,

Huang

2023

Nanomaterials

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Cu nanowire (NW)-based transparent conductors are considered to be highly promising constituents of next-generation flexible transparent electronics. However, the fast oxidation of copper under ambient conditions hinders the use of Cu NWs. Herein, we demonstrate a low-cost and scalable approach for preparing a ZnO shell on the surface of Cu NWs under ambient conditions. The covered ZnO shells enhance the oxidative stability of Cu NWs. The optical and electrical properties of ZnO@Cu NWs remain similar to the original performance of the Cu NWs (for example, before encapsulating: 13.5 Ω/sq. at 84.3%, after encapsulating: 19.2 Ω/sq. at 86.7%), which indicates that encapsulation with a ZnO shell enables the preservation of the transparency and conductivity of Cu NW networks. More importantly, the ZnO@Cu NWs exhibit excellent stability in terms of long-term storage, hot/humid environments, and strong oxidizing atmosphere/solution.

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Section: Resultsmentioning

confidence: 99%

Zinc Oxide-Encapsulated Copper Nanowires for Stable Transparent Conductors

Wang,

Yu,

Huang

2023

Nanomaterials

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“…where Gibbs free energies. The Gibbs free energy was estimated as follows: (2) where DG f represents the Gibbs free energy change of TGA adsorbed on Cu(111) at room temperature. DG f has a negative value, indicating that the species is stable, the larger its absolute value, the more stable it is.…”

Section: Computational Detailsmentioning

confidence: 99%

“…Copper has excellent physicochemical properties and is widely used in electronic plating, automobiles and smart phones, etc. [1] However, because copper itself has a certain degree of activity, it is susceptible to oxidative corrosion, [2] which weakens the properties of the metal itself. [3][4][5][6] Therefore, it is hoped that the development of anti-oxidant technology to protect the performance of copper itself to play, [7] but at the same time copper will not be corroded under the external environment.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Structures, Vibrational Raman Spectra and Chemical Binding Properties of Thioglycolic Acid on Cu(111) Surfaces: A DFT Study

Chen,

Xiao,

Lin

et al. 2024

ChemPhysChem

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Copper is widely used in everyday life and industrial production because of its good electrical and thermal conductivity. To overcome copper oxidation and maintain its good physical properties, small organic molecules adsorbed on the surface of copper make a passivated layer to further avoid copper corrosion. In this work, we have investigated thioglycolic acid (TGA, another name is mercaptoacetic acid) adsorbed on copper surfaces by using density functional theory (DFT) calculations and a periodical slab model. We first get five stable adsorption structures, and the binding interaction between TGA and Cu(111) surfaces by using density of states (DOS), indicating that the most stable configuration adopts a triple‐end binding model. Then, we analyze the vibrational Raman spectra of TGA adsorbed on the Cu(111) surface and make vibrational assignments according to the vibrational vectors. Finally, we explore the temperature effect of the thermodynamically Gibbs free energy of TGA on the Cu(111) surface and the antioxidant ability of the small organic molecular layer of copper oxidation on the copper surface. Our calculated results further provide evidences to interpret the stability of adsorption structures and antioxidant properties of copper.

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Surface-passivated Cu conductors for high-temperature sulfurous environments

Abstract: Advanced materials capable of withstanding extreme environments find extensive interests in the development of next-generation advanced anti-corrosion electronics. Herein, we report surface-passivation of printed copper conductors shows the corrosion resistance...

Cited by 2 publications

References 29 publications

Zinc Oxide-Encapsulated Copper Nanowires for Stable Transparent Conductors

Zinc Oxide-Encapsulated Copper Nanowires for Stable Transparent Conductors

Adsorption Structures, Vibrational Raman Spectra and Chemical Binding Properties of Thioglycolic Acid on Cu(111) Surfaces: A DFT Study

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