Laser-engineered heavy hydrocarbons: Old materials with new opportunities
Name
eaaz5231.full.pdf
Description
Published version
Size
4.66 MB
Format
Adobe PDF
Checksum (MD5)
f84876dae08cfb82fda47188a15e38f1
Author(s)
Zang, Xuan
Jian, Caiqing
Ingersoll, S.
Lu, Z.
Ferralis, Nicola
Grossman, Jeffrey C.
Date Issued
April 2020
Journal
Science Advances
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Zang, X. et al. “Laser-engineered heavy hydrocarbons: Old materials with new opportunities.” Science Advances, 6, 17 (April 2020): eaaz5231 © 2020 The Author(s)
Version
Final published version
Abstract
Polycyclic heavy hydrocarbons (HHs) such as coal, tar, and pitch are a family of materials with extremely rich and complex chemistry, representing a massive opportunity for their use in a range of potential applications. The present work shows that optimal selection of initial HHs based on molecular constituents is essential in tuning the material for a particular and targeted electronic application. Combining the selection of feedstock chemistry (H:C and aromatic content) and controlling variable laser treatment parameters (laser power, speed, and focus) lead to full control over the H:C ratio, sp2 concentration, and degree of graphitic stacking order of the products. The broad intertunability of these factors results from a wide distribution of carbon material crystallinity from amorphous to highly graphitic and a broad distribution of electrical conductivity up to 103 S/m.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution NonCommercial License 4.0
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DOI of Published Version
https://doi.org/10.1126/SCIADV.AAZ5231
