Effect of dislocations on charge carrier mobility–lifetime product in synthetic single crystal diamond
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منابع مشابه
Effect of dislocations on charge carrier mobility–lifetime product in synthetic single crystal diamond
The authors report correlations between variations in charge transport of electrons and holes in synthetic single crystal diamond and the presence of nitrogen impurities and dislocations. The spatial distribution of these defects was imaged using their characteristic luminescence emission and compared with maps of carrier drift length measured by ion beam induced charge imaging. The images indi...
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For optimal operation of chemical-vapor deposition sCVDd diamonds as charged particle detectors it is important to have a detailed understanding of the charge-carrier transport mechanism. This includes the determination of electron and hole drift velocities as a function of electric field, charge carrier lifetimes, as well as effective concentration of space charge in the detector bulk. We use ...
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Diamond has been regarded as a promising radiation detector material for use as a solid state ionizing chamber for decades. The parameters degrading the charge transport from what is expected from an ideal crystal are still not completely understood. Recently, synthetic chemical vapor deposited CVD single crystal diamond has become available, offering the opportunity to study the properties of ...
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We have studied the effects of irradiation induced damage on the detector response of a synthetic single 11 crystal diamond radiation detector. Before introducing radiation damage, the spatial variation of the detec12 tor response was investigated using a highly focused 2.6 MeV proton beam. A very uniform response 13 close to 100 % charge collection efficiency (CCE) over the whole contact area ...
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Radiation detectors for medical imaging at room temperature have been developed thanks to the availability of large chlorine-doped cadmium telluride (CdTe:Cl) crystals. Microstructural defects affect the performance of CdTe:Cl radiation detectors. Advanced characterization tools, such as Ion Beam Induced Current (IBIC) measurements and chemical etching on tellurium and cadmium faces were used t...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2007
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.2711754