Self-Oxidation Resistance of the Curved Surface of Achromatic Copper

Self-Oxidation Resistance of the Curved Surface of Achromatic Copper

© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 42 vom: 02. Okt., Seite e2210564
1. Verfasser: Kim, Young-Hoon (VerfasserIn)
Weitere Verfasser: Kim, Seong-Gon, Lee, Seunghun, Cheon, Miyeon, Kim, Su Jae, Nam, Kideuk, Lamichhane, Bipin, Park, Sung Heum, Jung, Min-Hyoung, Kim, Ji-Soo, Seo, Yu-Seong, Ha, Taewoo, Hwang, Jungseek, Jeong, Hu Young, Lee, Yusil, Lee, Young Hee, Kim, Young-Min, Jeong, Se-Young
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article achromatic metal films antireflection porous copper films self-oxidation resistance superhydrophilicity superhydrophobicity
Beschreibung
Zusammenfassung:© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
Copper surfaces that exhibit a wide range of achromatic colors while still metallic have not been studied, despite advancements in antireflection coatings. A series of achromatic copper films grown with [111] preferred orientation by depositing 3D porous nanostructures is introduced via coherent/incoherent atomic sputtering epitaxy. The porous copper nanostructures self-regulate the giant oxidation resistance by constructing a curved surface that generates a series of monoatomic steps, followed by shrinkage of the lattice spacing of one or two surface layers. First-principles calculations confirm that these structural components cooperatively increase the energy barrier against oxygen penetration. The achromaticity of the single-crystalline porous copper films is systematically tuned by geometrical parameters such as pore size distribution and 3D linkage. The optimized achromatic copper films with high oxidation resistance show an unusual switching effect between superhydrophilicity and superhydrophobicity. The tailored 3D porous nanostructures can be a candidate material for numerous applications, such as antireflection coatings, microfluidic devices, droplet tweezers, and reversible wettability switches
Beschreibung:Date Revised 20.10.2023
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202210564