Sefaattin Tongay

Sefaattin Tongay is an American materials scientist and engineer, currently Professor of Materials Science at Arizona State University and associate editor at American Institute of Physics (AIP) Applied Physics Reviews[6]. He is internationally recognized for the discovery of graphene/semiconductor devices, graphene based solar cells, 2D anisotropic semiconductors, epitaxial synthesis of quantum materials and Moire excitons in 2D quantum materials.

Sefaattin Tongay
Born
Germany
NationalityUnited States, Germany
Alma materUniversity of California, Berkeley University of Florida
Known forGraphene solar cells, graphene diodes, 2D exciton complexes, discovery of anisotropic materials, 2D alloys
AwardsPresidential Early Career Award for Scientists and Engineers[1] National Science Foundation CAREER Award[2][3] Highly Cited Researchers of 2019[4][5]
Scientific career
FieldsQuantum Materials, Nanotechnology, Material Synthesis, Spectroscopy
InstitutionsArizona State University

Research and career

He studied materials physics at the University of Florida working with Prof. Dr. Arthur F. Hebard[7] and postdoctoral fellowship at the materials science and engineering at the University of California, Berkeley.[8] His notable and most cited work includes the discovery of exciton complexes in 2D crystals, defects engineering in 2D materials, 2D superlattices, graphene based high-power devices,[9] and graphene solar cells[10][11]. He is known for establishing the current transport at these two-dimensional interfaces[12] and the discovery of new class of 2D anisotropic semiconductor, Rhenium disulfide (ReS2) [13]. Other seminal discoveries and contributions to the field include the defects engineering in 2D quantum materials[14], 2D alloying, van der Waals epitaxy growth of quantum materials, 2D anisotropic materials, the discovery of Moire excitons in 2Ds,[15] band alignment models in 2D heterojunctions, the discovery of quintons[16], 2D phase change alloys, the discovery of bright/dark excitons, and the engineering of 2D anisotropic materials.[17]

Recognition

Google scholar statistics has identified him as one of the top 10 researchers in the world in the area of quantum materials[18] and top 50 in two-dimensional materials[19]. His work received a number of prestigious awards including the Presidential Early Career Award for Scientists and Engineers[1][20] by the United States president Donald Trump, National Science Foundation CAREER Award[2][3], and Ten Outstanding Young Persons of the World award. More recently, his work has seen him identified as one of the most influential researchers over the past decade by Clarivate Analytics and Web of Science.[21][22]

Awards and honors
  • 2019 Presidential Early Career Award for Scientists and Engineers (PECASE) awards[1]
  • 2019 Ten Outstanding Young Persons of the World – Academic Leadership and Accomplishment – Turkey
  • 2019 Highly Cited Researchers of 2019 by Web of Science and Clarivate Analytics
  • 2019 Top Teaching Award by Arizona State University
  • 2019 Associate Editor at Applied Physics Reviews
  • 2018 Top Teaching Award by Arizona State University
  • 2017 Top Reviewer award by Chemistry of Materials American Chemical Society
  • 2017 Top Teaching Award by Arizona State University
  • 2016 National Science Foundation CAREER Awards
  • 2016 Top Teaching Award by Arizona State University
  • 2016 Top Engineering Faculty Teaching Award by Arizona State University
  • 2016 The Scientist of the Year Award by Turkish Science Heroes Association[23]
  • 2015 Top Teaching Award by Arizona State University
  • 2010 Tom Scott Memorial Award by the University of Florida
gollark: People are bad at long termism and long term prediction is also hard.
gollark: > that could almost negate the need for special space for generating electricity<@617750798960558091> No, industry has massive power use per area and likely not convenient windows everywhere.
gollark: Speaking of nuclear fusion, someone *just* posted this in another server I'm in (not sure of accuracy):
gollark: I don't know, look up the efficiency figures or something. I don't see the use case though.
gollark: Probably somewhat. Any light which passes through is light they can't absorb. I guess they could be just absorbing a few frequencies, but that would be worse than nontransparent ones.

References
  1. "President Donald J. Trump Announces Recipients of the Presidential Early Career Award for Scientists and Engineers". Whitehouse.gov. Retrieved January 7, 2020.
  2. "CAREER: Point Defects in Two-dimensional Material Systems: Fundamentals and New Perspectives". National Science Foundation. Retrieved January 7, 2020.
  3. "Imperfections make 2D materials potential powerhouses for producing tech advances". ASU Now. Retrieved January 7, 2020.
  4. Web of Science Highly Cited Researchers 2019
  5. https://asunow.asu.edu/20191126-10-asu-academics-recognized-world%E2%80%99s-most-influential-researchers-over-past-decade
  6. "Applied Physics Reviews". aip.scitation.org.
  7. "Art Hebard, Department of Physics, UF". www.phys.ufl.edu.
  8. "UCB :: MSE : Wu group :: People : Current Members". wu.mse.berkeley.edu.
  9. "Graphite and/or graphene semiconductor devices". Google Patents. Retrieved January 7, 2020.
  10. Zyga, Lisa. "Dopant gives graphene solar cells highest efficiency yet". Phys.org. Retrieved January 7, 2020.
  11. "Physicists set new record for graphene solar cell efficiency". Science Daily. Retrieved January 7, 2020.
  12. Tongay, S.; Lemaitre, M.; Miao, X.; Gila, B.; Appleton, B. R.; Hebard, A. F. (2012). "Rectification at Graphene-Semiconductor Interfaces: Zero-Gap Semiconductor-Based Diodes". Physical Review X. 2. doi:10.1103/PhysRevX.2.011002.
  13. Zyga, Lisa. "Scientists discover bulk material that exhibits monolayer behavior". Phys.Org. Retrieved January 7, 2020.
  14. Zyga, Lisa. "Defects in 2D semiconductors could lead to multi-colored light-emitting devices". Retrieved September 13, 2013.
  15. Demming, Anna. "Twistronics lights up with moiré exciton experiments". Physics World. Retrieved January 7, 2020.
  16. "Cambridge researchers discover quintons - a new quasiparticle in layered materials". Cambridge. Retrieved September 14, 2018.
  17. "Sefaattin Tongay, Google Scholar Profile". Retrieved January 7, 2020.
  18. "Profiles". scholar.google.com. Retrieved January 24, 2020.
  19. "Profiles". scholar.google.com. Retrieved January 24, 2020.
  20. Kullman, Joe. "Presidential Award Recognizes Fulton Schools Professor's Promising Research Contributions to Technological Progress". ASU. Retrieved January 7, 2020.
  21. Web of Science Highly Cited Researchers 2019
  22. https://asunow.asu.edu/20191126-10-asu-academics-recognized-world%E2%80%99s-most-influential-researchers-over-past-decade
  23. Serago, Rose. "Tongay's 2D Materials Research Earns Award from Turkish Science Association". ASU Now. Retrieved January 7, 2020.
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