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<span style="font-size:10.5pt; font-family:"Arial","sans-serif"; color:#1F497D">***** Seminar *****</span><span style="color:#1F497D"></span></p>
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<b><span style="font-size:16.0pt; color:#1F497D">Department of Electrical and Computer Engineering</span></b><span style="font-size:16.0pt; color:#1F497D"></span></p>
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<b><span style="font-size:16.0pt; color:#1F497D">Materials Engineering Program</span></b></p>
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<b><span style="font-size:14.0pt; color:#1F497D">Center for Integrated Bio and Nano Systems</span></b></p>
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<b><span style="font-size:14.0pt; color:#1F497D"> February 14, 2020</span></b><span style="font-size:14.0pt; color:#1F497D"></span></p>
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<b><span style="font-size:14.0pt; color:#1F497D">10:30 a.m., Room: AH108</span></b><span style="font-size:14.0pt; color:#1F497D"></span></p>
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<b><span style="font-size:18.0pt; color:#1F497D">The Past and Future of Carbon Science and Technology </span></b></p>
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<span style="font-size:18.0pt; color:#1F497D">Mauricio Terrones</span></p>
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<span style="font-size:16.0pt; color:#1F497D">Department of Physics, Department of Chemistry, Department of Materials Science and Engineering
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<span style="font-size:16.0pt; color:#1F497D">and Center for 2-Dimensional & Layered Materials</span></p>
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<span style="font-size:16.0pt; color:#1F497D">The Pennsylvania State University</span></p>
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<b><span style="color:#1F497D">Abstract</span></b><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">:</span><span style="color:#1F497D"> First, we will give a general historical introduction of Carbon Science and Technology with
emphasis in Nanoscience. We will then provide an overview of current research challenges and trends in carbon science. One of the objectives of this talk is to motivate carbons scientists to discover and synthesize novel materials with unprecedented properties,
and to fabricate novel functional devices. In particular, materials with different hybridization states will be discussed. These include 1) sp linear carbon chains, 2) sp2-graphene nanoribbons, 3) sp3-low-dimensional systems (flexible diamonds), 4) three-dimensional
(3D) graphene-based structures, and other hybrid systems.</span></p>
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<span style="color:#1F497D">We will also discuss the synthesis of carbon nanotubes and nanotube networks using different dopants during chemical vapor deposition (CVD). In particular, the effects of sulfur, boron and nitrogen during growth will be summarized.
It will be demonstrated that it is indeed possible to assemble novel micro-fluidic devices using nitrogen doped aligned carbon nanotubes. These devices can be used to trap and enrich human and animal viruses that could be then identified using different genomic
and optical characterization. Most importantly, these viruses are trapped without any label (e.g. antibodies) by tuning the inter-tubular distance within the devices, are viable and could be easily replicated.
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<span style="color:#1F497D">This talk will also discuss the synthesis of large-area, high-quality monolayers of nitrogen-, silicon- and boron-doped graphene sheets on Cu foils using ambient-pressure chemical vapor deposition (AP-CVD). Scanning tunnelling microscopy
(STM) and spectroscopy (STS) reveal that the defects in the doped graphene samples arrange in different geometrical configurations exhibiting different electronic and magnetic properties. Interestingly, these doped layers could be used as efficient single-molecule
sensors in conjunction with Raman spectroscopy. Finally, the synthesis of interconnected graphene layers (graphene foams) by solvothermal routes will also be discussed. These foams are highly conducting, very robust and can operate at temperatures ranging
from 77K to 1173K. </span></p>
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<span style="color:#1F497D">References</span></p>
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<span style="color:#1F497D">[1] Bianco, A., Chen, Y., Frackowiak, E., Holzinger, M., Koratkar, N., Meunier, V., Mikhailovsky, S., Strano, M., Tascon, J.M.D., Terrones, M. “Carbon Science Perspective in 2020: Current Research and Future Challenges”, Carbon 161,
373-391.</span></p>
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<span style="color:#1F497D">[2] A. Bianco, Y. Chen, Y. Chen, D. Ghoshal, R.H. Hurt, Y. A. Kim, N. Koratkar, V. Meunier, M. Terrones. (2018) “A Carbon Science Perspective in 2018: Current Achievements and Future Challenges”. Carbon 132, 785-801.</span></p>
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<span style="color:#1F497D">[3] Y.-T. Yeh, Y. Tang, A. Sebastian, A. Dasgupta, N. Perea-Lopez, I. Albert, H. Lu, M. Terrones, S.-Y. Zheng. (2016) “Tunable and Label-Free Virus Enrichment for Ultra-sensitive Virus Detection Using Carbon Nanotube Arrays”. Science
Advances 2: e1601026.</span></p>
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<span style="color:#1F497D">[4] S. Feng, M. C. dos Santos, B. R. Carvalho, R. Lv, Q. Li, K. Fujisawa, A. L. Elías, Y. Lei, N. Perea-López, M. Endo, M. Pan, M. A. Pimenta, M. Terrones (2016). "Ultrasensitive molecular sensor using N-doped graphene through enhanced
Raman scattering". Science Advances 2, e1600322.</span></p>
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<span style="color:#1F497D">[5] S. Feng, Z. Lin, X. Gan, R. Lv, M. Terrones. (2017) “Doping two-dimensional materials: ultra-sensitive sensors, band gap tuning and ferromagnetic monolayers”, Nanoscale Horizons, 2, 2, 72-80.</span></p>
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<span style="color:#1F497D">[6] Y. Wu, Terrones, M. et al. (2015). “Three-dimensionally bonded spongy graphene material with super compressive elasticity and near-zero Poisson’s ratio”. Nature Communications 6, 6141; doi:10.1038/ncomms7141.</span></p>
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<span style="color:#1F497D"><img width="418" height="198" id="Picture_x0020_1" data-outlook-trace="F:1|T:1" src="cid:image002.jpg@01D5E17D.2D9DB710"></span></p>
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<span style="color:#1F497D">Fig. 1. Representation of surface enhanced Raman spectroscopy using N-doped graphene to detect single molecules.
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<img width="129" height="171" align="left" hspace="12" alt="terrones1_laser.jpg" data-outlook-trace="F:1|T:1" src="cid:image001.jpg@01D5E17D.882A8FF0"><b><span style="color:#1F497D"> Bio</span></b><span style="color:#1F497D">: Mauricio Terrones, obtained his
B.Sc. degree in Engineering Physics with first class honors at Universidad Iberoamericana, and was distinguished as the Best Student of Mexico in Engineering Physics in 1992. In 1994 he started his doctorate degree with Sir Prof. Harold W. Kroto (Nobel Laureate,
FRS), and received his D.Phil. degree from University of Sussex in 1998. He has co-authored more than 550 publications in international journals, and counts with more than 50,000 citations to his work (His H index is 104; Google Scholar H=115). He has published
in Nature, Science, Phys. Rev. Lett., Nano Lett., Nature Nanotechnology, Nature Materials, Nature Communications, Nature Chemistry, ACS Nano, PNAS, Science Advances, etc. In 1999, he was awarded the Alexander von Humboldt Fellowship, and carried out research
at the Max-Planck Institut für Metallforschung (Stuttgart, Germany). In 2000, he was recipient of the Mexican National Prize for Chemistry. He also received the Javed Husain Prize and the Albert Einstein medal from UNESCO in 2001. In 2005, he received the
TWAS Prize in Engineering Physics for his contributions in the field of carbon-based nanomaterials. This prize is given by the Academy of Sciences of the Developing world, and Mauricio is the youngest scientist ever to receive any TWAS award. In 2005, Terrones
also received the “José Antonio Villaseñor y Sánchez” Prize, awarded by the governor of the state of San Luis Potosí, for his contributions to Nanoscience. He is member of the Mexican Academy of Sciences since 2002. In 2012 he was elected fellow of the American
Association for the Advancement of Science (AAAS). In 2015, he was elected fellow of the Royal Society of Chemistry (UK) and was awarded the Jubilee Professorship from Chalmers University of Technology (Sweden). In 2016, Mauricio was awarded the Faculty Scholar
Medal in Physical Sciences (Penn State). In 2017, Terrones was also elected fellow of the American Physical Society (APS). In 2017, 2018 and 2019, he was got recognized as a Highly Cited Researcher in Physics and Materials Science, being among the top 1% most
cited works according to the Web of Science and Clarivate Analytics. Mauricio is the Editor in Chief of the journal Carbon, and he is currently associate editor of 2D Materials and Nature Scientific Reports. He is Verne M. Willaman Professor of Physics and
Distinguished Professor of Physics, Chemistry and Materials Science & Engineering at Penn State University. He is also the Founder Director of the Center for 2-Dimensional and Layered Materials at Penn State, and also the NSF-IUCRC Center for Atomically Thin
Multifunctional Coatings (ATOMIC). </span></p>
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<span style="color:#1F497D">Research: Mauricio Terrones works on low dimensional materials that mainly involve 1- and 2-Dimensions, ranging from carbon nanotubes and graphene nanoribbons to graphene, boron nitride and chalcogenide monolayers (e.g. WS2, MoS2,
NbS2 , etc). His group concentrates on challenging synthesis of novel nanoscale materials (1D and 2D) with unprecedented physico-chemical properties. Within his group and with close collaborators, he performs theoretical first-principles calculations that
predict electronic, chemical, optical and magnetic properties. He also focuses on performing state of-the-art characterization of the produced materials using electronic transport, photo-transport, Raman spectroscopy, aberration corrected transmission electron
microscopy, photoluminescence, electron energy loss spectroscopy, etc. </span></p>
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<span style="color:#1F497D">Contact Prof. Robles Hernandez <fcrobles@Central.UH.EDU> if you would like to meet with Prof.</span>
<span style="color:#1F497D">Terrones.</span></p>
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