Optical and transport properties of chromium-doped CdSe and CdS0.67Se0.33 crystals

摘要: Abstract CdSe crystals were grown by the seeded physical vapor transport method with helium on CdS 0.67 Se 0.33 seeds. A CrSe source was used for doping of both and seed chromium during growth. An absorption peak in near-IR range 1.5–2.2 μm associated intracenter 5 T 2 → E transitions Cr 2+ ions realized. The concentration various samples calculated using experimentally obtained values coefficients, it found to vary from 10 17 3×10 18  cm −3 . ‘blue’ shift -related band maximum relatively matrix demonstrated first time. measured Hall mobility charge carriers at a level 2×10 reached value 6000 cm /V s 50 K.