Photochemical Reduction of Silver Precursor and Elastomer Composite for Flexible and Conductive Patterning
| Autor: | Sung-Hak Cho, Hoon-Young Kim, Seok Young Ji, Won-Seok Chang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Fabrication
Materials science heat-sensitive substrate Composite number 02 engineering and technology 010402 general chemistry Elastomer 01 natural sciences lcsh:Technology Article chemistry.chemical_compound Thermal conductivity Polyethylene terephthalate poly(styrene-block-butadiene-block-styrene) (SBS) General Materials Science Thin film Composite material lcsh:Microscopy Electrical conductor lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T laser reduction Ag precursor 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) Layer (electronics) lcsh:TK1-9971 |
| Zdroj: | Materials Materials, Vol 12, Iss 23, p 3809 (2019) Volume 12 Issue 23 |
| ISSN: | 1996-1944 |
| Popis: | The development of ink-based printing techniques has enabled the fabrication of electric circuits on flexible substrates. Previous studies have shown that the process method which uses a silver (Ag) precursor (AgCF3COO) and electrospun poly(styrene-block-butadiene-block-styrene) (SBS) can yield patterns with high conductivity and stretchability. However, the only method to reduce the Ag precursor absorbed in SBS is chemical reduction using a toxic solution. Here, we developed a process to fabricate a high-conductivity pattern via laser reduction by photo-chemical reaction without toxic solutions. The Ag precursor was absorbed in electrospun SBS to form a composite layer (composite SBS) with modified properties, that could more effectively absorb the photon energy than SBS without the Ag precursor. We analyzed the properties of this material, such as its light absorption coefficient, heat conductivity, and the density of both SBS and composite SBS to allow comparison of the two materials by numerical simulation. In addition, we fabricated patterns on highly heat-sensitive substrates such as burning paper and a polyethylene terephthalate (PET) thin film, as the pattern can be implemented using very low laser energy. We expect the proposed approach to become a key technology for implementing user-designed circuits for wearable sensors and devices on various flexible substrates. |
| Databáze: | OpenAIRE |
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