{"id":979,"date":"2025-06-26T16:02:07","date_gmt":"2025-06-26T08:02:07","guid":{"rendered":"https:\/\/graphene.nus.edu.sg\/barbaros\/?post_type=publication&p=979"},"modified":"2025-06-26T16:05:39","modified_gmt":"2025-06-26T08:05:39","slug":"superior-adhesion-of-monolayer-amorphous-carbon-to-copper","status":"publish","type":"publication","link":"https:\/\/graphene.nus.edu.sg\/barbaros\/publication\/superior-adhesion-of-monolayer-amorphous-carbon-to-copper\/","title":{"rendered":"Superior Adhesion of Monolayer Amorphous Carbon to Copper"},"content":{"rendered":"

The single-atom thickness of graphene holds great potential for device scaling, but its e\ufb00ectiveness as a thin metal-ion di\ufb00usion barrier in microelectronics and a corrosion barrier for plasmonic devices is compromised by weak van der Waals interactions with copper (Cu), leading to delamination issues. In contrast, monolayer amorphous carbon (MAC), a recently reported single-atom-thick carbon \ufb01lm with a disordered sp2 hybridized structure, demonstrates superior adhesion properties. This study reveals that MAC exhibits an adhesion energy of 85 J m\u22122 on Cu, which is 13 times greater than that of graphene. This exceptional adhesion is attributed to the formation of covalent-like Cu\u2500C bonds while preserving its sp 2 structure, as evidenced by X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption \ufb01ne structure(NEXAFS) spectroscopy. Density functional theory (DFT) calculations further elucidate that the corrugated structure of MAC facilitates the hybridization of C 2p z orbitals with Cu 4s and 3dz 2 orbitals, promoting strong bonding. Theseinsights indicate that the amorphous structure of MAC signi\ufb01cantly enhances adhesion while preserving its elemental composition, providing a pathway to improve the mechanical reliability and performance of two-dimensional(2D) materials on metal substrates in various technological applications.<\/p>\n

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\"Details<\/p>\n

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This work is with several international collaborators. For more details, please refer to the link<\/a>.<\/p>\n","protected":false},"featured_media":980,"comment_status":"open","ping_status":"closed","template":"","publication_taxonomy":[5],"class_list":["post-979","publication","type-publication","status-publish","has-post-thumbnail","hentry","publication_taxonomy-research"],"yoast_head":"\nSuperior Adhesion of Monolayer Amorphous Carbon to Copper - Barbaros Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/graphene.nus.edu.sg\/barbaros\/publication\/superior-adhesion-of-monolayer-amorphous-carbon-to-copper\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Superior Adhesion of Monolayer Amorphous Carbon to Copper - Barbaros Group\" \/>\n<meta property=\"og:description\" content=\"The single-atom thickness of graphene holds great potential for device scaling, but its e\ufb00ectiveness as a thin metal-ion di\ufb00usion barrier...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/graphene.nus.edu.sg\/barbaros\/publication\/superior-adhesion-of-monolayer-amorphous-carbon-to-copper\/\" \/>\n<meta property=\"og:site_name\" content=\"Barbaros Group\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-26T08:05:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/graphene.nus.edu.sg\/barbaros\/wp-content\/uploads\/sites\/2\/2025\/06\/adma202419112-fig-0001-m.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1367\" \/>\n\t<meta property=\"og:image:height\" content=\"698\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/graphene.nus.edu.sg\/barbaros\/publication\/superior-adhesion-of-monolayer-amorphous-carbon-to-copper\/\",\"url\":\"https:\/\/graphene.nus.edu.sg\/barbaros\/publication\/superior-adhesion-of-monolayer-amorphous-carbon-to-copper\/\",\"name\":\"Superior Adhesion of Monolayer Amorphous Carbon to Copper - 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