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A challenge in exploiting the electrical properties of graphene is the fabrication of large area thin films in a scalable and inexpensive manner. The lack of a reliable and simple graphite exfoliation procedure has hindered the possibility of making films starting from pure graphene. This paper presents a scalable manner to obtain films of pure graphene on virtually any substrate with reproducible...
The study aims to investigate the energy band diagram of emitting diamond using the electron energy distribution obtained from combined X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, and field emission spectroscopy. Combination of UPS and FES can determine the origin of electron field emission relative to the electronic structure of diamond. By adding XPS, the origin of...
The origin of field-emitted electrons from various kind of diamond surface was investigated using the combined X-ray photoelectron spectroscopy (XPS) / ultraviolet photoelectron spectroscopy (UPS) / field emission spectroscopy (FES) system. As a result, the origin of field-emitted electrons from the hydrogen-terminated natural IIb diamond was found to be at the valence band maximum (VBM) and it was...
In this paper, a) a-Se, b) lightly As doped a-Se and c) heavily As doped a-Se films were fabricated by multi-layered vacuum evaporation method as introduced in previous report. To explain briefly, Se and As 2Se3 were charged into the boat as the evaporation source and the sample holder rotates on top of both sources to create a multi-layered film. A slit was introduced on top of the As2Se 3 to limit...
In this study, combined X-ray photoelectron spectroscopy (XPS)/ultraviolet photoelectron spectroscopy (UPS)/field emission spectroscopy (FES) system was used to characterize the electron emission mechanism of doped CVD diamond. The energy band diagram of emitting diamond is drawn using the electron energy distribution obtained from the system
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