Influence of Hydrogen Treatment on Electrical Properties of Detector-Grade CdMnTe:In Crystals

Bridgman-Grown (Cd,Mn)Te and (Cd,Mn)(Te,Se): A Comparison of Suitability for X and Gamma Detectors

“…Let us compare the energy resolutions of some detectors described in the literature and constructed using (Cd,Mn)Te crystals obtained through the Bridgman method. The energy resolution of a planar as-grown Cd 0.9 Mn 0.1 Te detector with a guard ring, biased at 360 V, and characterized by an electron μτ product on the order of 10 −4 cm 2 V −1 is in the range of 25–30% for 59.5 keV gamma rays from an Am-241 radiation source [ 24 ]. Another example is a planar Cd 0.95 Mn 0.05 Te detector biased at 150 V, which has an energy resolution of 9.2% FWHM for the 59.5 keV gamma peak of Am-241.…”

“…CdTe-based compounds such as (Cd,Zn)Te [ 1 , 2 , 3 , 4 ], (Cd,Zn)(Te,Se) [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ], (Cd,Mn)Te [ 19 , 20 , 21 , 22 , 23 , 24 ], (Cd,Mn)(Te,Se) [ 25 , 26 ], (Cd,Mg)Te [ 27 , 28 , 29 , 30 , 31 , 32 ], and Cd(Te,Se) [ 33 , 34 , 35 , 36 , 37 , 38 , 39 ] are currently being tested as materials for room-temperature X- and gamma-ray detectors. In these nuclear detectors, it is crucial to maximize the flow of radiation-induced charge carriers through the detector volume to the respective electrodes.…”

Preparation and characterization of pure phase CdMnTe nanopowders by a hydrothermal route

“…Two peaks 92 and 72 cm À1 corresponding to A 1 phonon mode of Te. 27 And two peaks at 137 cm À1 and 119 cm À1 corresponding to the transverse optic (TO) and longitudinal optic (LO) modes of hexagonal NiAs-type antiferromagnetic MnTe. 28 In Fig.…”

“…The edge emission peak (D 0 , X) at 1.83 eV is mainly attributed to the recombination of electrons in the conduction band and holes in the valence band. The (D 0 , h) peak at 1.78 eV corresponds to the recombination of acceptor and hole 27 . In Fig.…”