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We report semiconducting behavior of monolayer graphene enabled through plasma activation of substrate surfaces. The graphene devices are fabricated by mechanical exfoliation onto pre-processed SiO2/Si substrates. Contrary to pristine graphene, these graphene samples exhibit a transport gap as well as nonlinear transfer characteristics, a large on/off ratio of 600 at cryogenic temperatures, and an...
Nickel phosphide (Ni 2 P) is an emerging catalyst for hydrodesulfurization and other important environment- and energy-related catalytic reactions. To understand its high performance, the surface structure of a Ni 2 P (0001) single crystal surface was investigated using dynamical LEED analysis. The obtained surface structure for Ni 2 P (0001)-1×1 is a P-covered Ni 3 ...
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