Laser-engineered heavy hydrocarbons: Old materials with new opportunities
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...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Association for the Advancement of Science (AAAS)
2020
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| Online Access: | https://hdl.handle.net/1721.1/127251 |
| _version_ | 1826205539330162688 |
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| author | Zang, Xuan Jian, Caiqing Ingersoll, S. Lu, Z. Ferralis, Nicola Grossman, Jeffrey C. |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Zang, Xuan Jian, Caiqing Ingersoll, S. Lu, Z. Ferralis, Nicola Grossman, Jeffrey C. |
| author_sort | Zang, Xuan |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T13:15:03Z |
| format | Article |
| id | mit-1721.1/127251 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:15:03Z |
| publishDate | 2020 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | dspace |
| spelling | mit-1721.1/1272512022-09-28T12:55:51Z Laser-engineered heavy hydrocarbons: Old materials with new opportunities Zang, Xuan Jian, Caiqing Ingersoll, S. Lu, Z. Ferralis, Nicola Grossman, Jeffrey C. Massachusetts Institute of Technology. Research Laboratory of Electronics Massachusetts Institute of Technology. Department of Materials Science and Engineering 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. National Science Foundation (U.S.) (Awards DMR-14-19807, 1541959) 2020-09-14T13:59:29Z 2020-09-14T13:59:29Z 2020-04 2019-09 2020-09-10T12:52:18Z Article http://purl.org/eprint/type/JournalArticle 2375-2548 https://hdl.handle.net/1721.1/127251 Zang, X. et al. “Laser-engineered heavy hydrocarbons: Old materials with new opportunities.” Science Advances, 6, 17 (April 2020): eaaz5231 © 2020 The Author(s) en 10.1126/SCIADV.AAZ5231 Science Advances Creative Commons Attribution NonCommercial License 4.0 https://creativecommons.org/licenses/by-nc/4.0/ application/pdf American Association for the Advancement of Science (AAAS) Science Advances |
| spellingShingle | Zang, Xuan Jian, Caiqing Ingersoll, S. Lu, Z. Ferralis, Nicola Grossman, Jeffrey C. Laser-engineered heavy hydrocarbons: Old materials with new opportunities |
| title | Laser-engineered heavy hydrocarbons: Old materials with new opportunities |
| title_full | Laser-engineered heavy hydrocarbons: Old materials with new opportunities |
| title_fullStr | Laser-engineered heavy hydrocarbons: Old materials with new opportunities |
| title_full_unstemmed | Laser-engineered heavy hydrocarbons: Old materials with new opportunities |
| title_short | Laser-engineered heavy hydrocarbons: Old materials with new opportunities |
| title_sort | laser engineered heavy hydrocarbons old materials with new opportunities |
| url | https://hdl.handle.net/1721.1/127251 |
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