Straightforward Manufacturing of 3D-Printed Metallic Structures toward Customized Electrical Components
- Authors
- Lee, Dongmin; Kim, So-Young; Jeong, Gwajeong; Lee, Woo Sung; Lee, Wonho; Yang, Hyunseung
- Issue Date
- Jun-2023
- Publisher
- AMER CHEMICAL SOC
- Keywords
- 3D printing; metalization; DLP; thiol-ene-acrylate; electroless plating
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.15, no.26, pp 31765 - 31775
- Pages
- 11
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 15
- Number
- 26
- Start Page
- 31765
- End Page
- 31775
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/21821
- DOI
- 10.1021/acsami.3c04121
- ISSN
- 1944-8244
1944-8252
- Abstract
- Metalizing three-dimensional (3D)-printed polymers hasbeen spotlightedin the field of manufacturing high-end and customized electrical components.Conventional metalization approaches that rely on the electrolessplating (ELP) process typically require the use of noble metal-basedcatalysts or involve multistep processes, limiting their practicalapplications. Herein, we propose a straightforward yet effective approachto manufacture 3D-printed polymers with conductive metal layers througha thiol-mediated ELP process without involving an additional catalyticactivation process. A photocurable ternary resin based on thiol-ene-acrylatemonomers was precisely designed to induce excess thiol moieties onthe surface of 3D-printed structures. These exposed thiol moietiesserved as active sites for metal ion complexion via strong metal-sulfurbonds, allowing the deposition of metal layers on the 3D-printed polymersthrough the ELP. Diverse metal layers, including Cu, Ag, and NiP,could be deposited onto virtually any 3D-printed structures with highuniformity and adhesion stability. To highlight the potential applicationof our approach, we fabricated fully functional glucose sensors throughthe deposition of the Cu layer on 3D-printed electrode models, andthese sensors displayed excellent nonenzymatic glucose sensing performance.The proposed approach offers great insights for designing functionalmetallic structures and opens up new avenues for manufacturing lightweight,customized electrical components.
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