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Graphene on Nanoscale-Thick Au Films: Implications for Anticorrosion in Smart Wearable Electronics

Lu, Chen-Hsuan and Shang, Kuang-Ming and Lee, Shi-Ri and Tai, Yu-Chong and Yeh, Nai-Chang (2022) Graphene on Nanoscale-Thick Au Films: Implications for Anticorrosion in Smart Wearable Electronics. ACS Applied Nano Materials, 5 (3). pp. 4343-4349. ISSN 2574-0970. doi:10.1021/acsanm.2c00401. https://resolver.caltech.edu/CaltechAUTHORS:20220302-770432776

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Abstract

Gold is normally considered inert to chemical reaction. Nevertheless, as a common electrode material, it would suffer from corrosion when exposed to certain solutions such as sweat and body fluids. Here, we report low-temperature plasma-enhanced chemical vapor deposition (PECVD) of graphene on gold and demonstrate its feasibility for anticorrosion application. The effects of hydrogen-to-methane ratio and the underlying gold substrate on the graphene growth are investigated, and the growth mechanism of PECVD graphene on gold is proposed. When immersed in an oxygenated saline solution, the PECVD-grown graphene-covered gold surface is found to remain intact after an acceleration soaking test at 90 °C for 24 h, which is in contrast to the degradation of bare gold surface subject to the same test. Our findings suggest that consumer/medical wearables and implantable devices with exposed gold can benefit from the protection of a direct, low-temperature PECVD-grown graphene layer for anticorrosion, thereby prolonging the efficacy and reliability of gold electrode-based biosensors.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acsanm.2c00401DOIArticle
ORCID:
AuthorORCID
Lu, Chen-Hsuan0000-0002-4802-1332
Shang, Kuang-Ming0000-0001-5065-7607
Lee, Shi-Ri0000-0002-7377-263X
Tai, Yu-Chong0000-0001-8529-106X
Yeh, Nai-Chang0000-0002-1826-419X
Additional Information:© 2022 The Authors. Published by American Chemical Society. Received: January 26, 2022; Accepted: February 17, 2022; Published: March 2, 2022. C.-H.L. acknowledges Professor George Rossman for providing access to the Raman spectrometer and the Molecular Materials Research Center in the Beckman Institute of the Caltech for access to XPS and AFM. C.-H.L. thanks Dr. Wei-Hsiang Lin for discussion on XPS results and acknowledges Dr. Chyi-Ming Leu at the Material and Chemical Research Laboratories (MCL) in ITRI for coordinating the STEM imaging and XRD acquisition. C.-H.L and K.-M.S. acknowledge the support from the J. Yang & Family Foundation. This work is supported by the Industrial Technology Research Institute (ITRI) in Taiwan (NCY.PECVD2-1-ITRI.SRA2021). Author Contributions. The project was conceived jointly by C.-H.L. and N.-C.Y. C.-H.L. performed the graphene growth, Raman spectroscopic studies, and XPS and AFM measurements. K.-M. S. prepared the gold substrates and performed SEM imaging and AST test. S.-R. L. performed the ADF-STEM studies. N.-C. Y. and Y.-C. T. coordinated the research activities at Caltech. The manuscript was written with contributions from all authors. All authors have approved the final version of the manuscript. The authors declare no competing financial interest.
Funders:
Funding AgencyGrant Number
Industrial Technology Research InstituteNCY.PECVD2-1-ITRI.SRA2021
J. Yang Family and FoundationUNSPECIFIED
Subject Keywords:PECVD, graphene, low-temperature, gold anticorrosion
Issue or Number:3
DOI:10.1021/acsanm.2c00401
Record Number:CaltechAUTHORS:20220302-770432776
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220302-770432776
Official Citation:Graphene on Nanoscale-Thick Au Films: Implications for Anticorrosion in Smart Wearable Electronics. Chen-Hsuan Lu, Kuang-Ming Shang, Shi-Ri Lee, Yu-Chong Tai, and Nai-Chang Yeh. ACS Applied Nano Materials 2022 5 (3), 4343-4349; DOI: 10.1021/acsanm.2c00401
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:113680
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:02 Mar 2022 10:38
Last Modified:29 Jun 2022 21:48

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