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The optimization of the electrode structure plays an important role in the improvement of the charge collection efficiency of diamond film radiation detector. In this paper the finite element (FE) method is utilized to design and optimize the electrode geometry. For 1×1 cm2 diamond film model, the detector provided the best charge collection efficiency and energy resolution, when the ratio of the...
Al-doped ZnO films with different Al concentrations were prepared on freestanding diamond (FSD) substrates by radio-frequency (RF) reactive magnetron sputtering method. The effects of Al concentrations and annealing process on the structural and electrical properties of the ZnO films were studied by X-ray diffraction (XRD) and Hall effect measurement system respectively. The experimental results suggested...
Boron-doped p-type nanocrystalline diamond (NCD) films were grown by microwave plasma chemical vapor deposition (MPCVD) method via introduction of the gas mixtures of methane, hydrogen and diborane. The effects of B/C ratios of gas mixtures on the electrical properties of NCD films were investigated by Hall effect measurement system. N-type ZnO films were prepared on NCD films by radio-frequency (RF)...
AFM, Raman spectroscopy, FTIR spectroscopy and Hall effect measurements were used to analyze nanocrystalline diamond film. The surface structure and conductivity as well as CH stretching bonds of the film was demonstrated.
200 εm thick free-standing polycrystalline diamond films were grown by microwave plasma chemical vapor deposition (MPCVD) method. The nucleation surfaces of diamond were characterized by XRD, Raman scattering, atomic force microscopy (AFM) method. An ultraviolet (UV) optoelectronic device was fabricated on diamond nucleation surface, showing clear modulation of channel current.
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