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of 518
pro vyhledávání: '"Swan, A. K."'
The impact of the environment on graphene's properties such as strain, charge density, and dielectric environment can be evaluated by Raman spectroscopy. These environmental interactions are not trivial to determine, since they affect the spectra in
Externí odkaz:
http://arxiv.org/abs/2203.00431
Ultra-low doping and local charge variation in graphene measured by Raman: experiment and simulation
Avoiding charge density variations and impurities in graphene is vital for high-quality graphene-based devices. Here, we demonstrate an optical method using Raman 2D peak-split to monitor charge density variations in the range 1-25e10 cm-2. We compar
Externí odkaz:
http://arxiv.org/abs/2005.04218
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Avoiding charge density fluctuations and impurities in graphene is vital for high-quality graphene-based devices. Traditional characterization methods require device fabrication and electrical transport measurements, which are labor-intensive and tim
Externí odkaz:
http://arxiv.org/abs/1908.10961
We present electrothermal microelectromechanical (MEMS) actuators as a practical platform for straining 2D materials. The advantages of the electrothermal actuator is its high output force and displacement for low input voltage, but its drawback is t
Externí odkaz:
http://arxiv.org/abs/1811.05450
Autor:
Christopher, Jason W., Vutukuru, Mounika, Lloyd, David, Bunch, J. Scott, Goldberg, Bennett B., Bishop, David J., Swan, Anna K.
We report on a modified transfer technique for atomically thin materials integrated onto microelectromechanical systems (MEMS) for studying strain physics and creating strain-based devices. Our method tolerates the non-planar structures and fragility
Externí odkaz:
http://arxiv.org/abs/1803.02787
Akademický článek
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Autor:
Lloyd, David, Liu, Xinghui, Christopher, Jason W., Cantley, Lauren, Wadehra, Anubhav, Kim, Brian L., Goldberg, Bennett B., Swan, Anna K., Bunch, J. Scott
We demonstrate the continuous and reversible tuning of the optical band gap of suspended monolayer MoS2 membranes by as much as 500 meV by applying very large biaxial strains. By using chemical vapor deposition (CVD) to grow crystals that are highly
Externí odkaz:
http://arxiv.org/abs/1608.04264
Monolayer molybdenum disulfide (MoS$_2$) has emerged as an excellent 2D model system because of its two inequivalent, direct-gap valleys that lead to exotic bound and excited states. Here we focus on one such bound state, the negatively charged trion
Externí odkaz:
http://arxiv.org/abs/1605.09741