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Flexible MgO barrier magnetic tunnel junctions
Li Ming Loong, Wonho Lee, Xuepeng Qiu +5
Flexible electronic devices require the integration of multiple crucial components on soft substrates to achieve their functions. In particular, memory devices are the fundamental…
Conductance modulation in topological insulator Bi2Se3 thin films with ionic liquid gating
Jaesung Son, Karan Banerjee, Matthew Brahlek +5
A Bi2Se3 topological insulator field effect transistor is investigated by using ionic liquid as an electric double layer gating material, leading to a conductance modulation of 365…
Ultrafast and widely tuneable vertical-external-cavity surface-emitting laser, mode-locked by a graphene-integrated distributed Bragg reflector
C. A. Zaugg, Z. Sun, V. J. Wittwer +11
We report a versatile and cost-effective way of controlling the unsaturated loss, modulation depth and saturation fluence of graphene-based saturable absorbers (GSAs), by changing…
Graphene/liquid crystal based terahertz phase shifters
Yang Wu, Xuezhong Ruan, Chih-Hsin Chen +9
Due to its high electrical conductivity and excellent transmittance at terahertz frequencies, graphene is a promising candidate as transparent electrodes for terahertz devices. We…
Shifting of surface plasmon resonance due to electromagnetic coupling between graphene and Au nanoparticles
Jing Niu, Young Jun Shin, Jaesung Son +3
Shifting of the surface plasmon resonance wavelength induced by the variation of the thickness of insulating spacer between single layer graphene and Au nanoparticles is studied. T…
Graphene induced tunability of the surface plasmon resonance
Jing Niu, Young Jun Shin, Youngbin Lee +2
Tunability of the surface plasmon resonance wavelength is demonstrated by varying the thickness of Al2O3 spacer layer inserted between the graphene and nanoparticles. By varying th…
30 inch Roll-Based Production of High-Quality Graphene Films for Flexible Transparent Electrodes
Sukang Bae, Hyeong Keun Kim, Youngbin Lee +13
We report that 30-inch scale multiple roll-to-roll transfer and wet chemical doping considerably enhance the electrical properties of the graphene films grown on roll-type Cu subst…
Wafer-scale synthesis and transfer of graphene films
Youngbin Lee, Sukang Bae, Houk Jang +6
We developed means to produce wafer scale, high-quality graphene films as large as 3 inch wafer size on Ni and Cu films under ambient-pressure and transfer them onto arbitrary subs…