Sub-Terahertz Frequency-Domain Spectroscopy Reveals Single-Grain Mobility and Scatter Influence of Large-Area Graphene
| Autor: | Eric Heintze, Svyatoslav Lobanov, Martin Dressel, Boris Gorshunov, Alexander Hoyer, Christian Cervetti, Klaus Kern, Marko Burghard, Elena S. Zhukova, Lapo Bogani |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Terahertz radiation Frequency domain spectroscopy Infrared spectroscopy Chemical vapor deposition law.invention law Polymethyl Methacrylate Scattering Radiation General Materials Science Condensed matter physics Graphene Scattering business.industry Spectrum Analysis Mechanical Engineering Temperature Conductance Silicon Dioxide Interferometry Mechanics of Materials Optoelectronics Graphite business Copper |
| Zdroj: | Advanced Materials. 27:2635-2641 |
| ISSN: | 0935-9648 |
| Popis: | The response of individual domains in wafer-sized chemical vapor deposition graphene is measured by contactless sub-terahertz interferometry, observing the intrinsic optical conductance and reaching very high mobility values. It is shown that charged scatterers limit the mobility, validating previous theoretical predictions, and sub-terahertz quality assessment is demonstrated, as necessary for large-scale applications in touchscreens, as well as wearable and optoelectronic devices. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| Databáze: | OpenAIRE |
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