Journal
CHEMISTRY OF MATERIALS
Volume 34, Issue 10, Pages 4602-4612Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.2c00467
Keywords
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Funding
- National Science Foundation (NSF) Materials Research Science and Engineering Center for Nanoscale Science at Penn State University [NSF-DMR 1420620]
- Sloan Foundation [FG-202012707]
- NSF [CMMI-2046819]
- 3M NonTenured Faculty Award
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In this article, a direct laser writing method for synthesizing and patterning graphitic carbon from liquid organic precursors is reported. The laser-deposited carbon exhibits tunable electrical resistivities and microscale resolution, making it a promising candidate for applications in energy storage and sensing.
One-step synthesis and micropatterning of different types of carbon nanomaterials, such as amorphous carbon or three-dimensional graphene which have versatile electrochemical, thermal, and mechanical properties, are advantageous for the fabrication of microelectronics, sensors, and wearable devices. Here, we report a direct laser writing method to simultaneously synthesize and pattern graphitic carbon from liquid organic precursors. We have tested a wide range of liquid organic precursors and identified the chemical characteristics that are beneficial for successful laser-induced solvothermal deposition. The laser-deposited carbon exhibits a paracrystalline-to-polycrystalline structure and has electrical resistivities on the order of 10-3 to 10-4 Omega m which is tunable through variations in the laser power. Such properties of the laser-deposited carbon, coupled with the ability to direct-write custom patterns with microscale resolution, make these carbon materials exciting candidates for use in applications such as energy storage and sensing.
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