Si-Ge-Sn alloys can achieve bandgaps in the 1eV range and can facilitate the integration of III-V materials with both Ge and Si substrates. The development and current status of Si-Ge-Sn epilayer growth at Translucent is presented. The main aims of this work are the development of infrared absorbers with bandgaps below that of Ge for infrared detectors, 1 eV semiconductor materials for photovol...

Several experiments were performed during last years at underground (3600 m w.e.) Laboratori Nazionali del Gran Sasso (LNGS) of the INFN (Italy) to search for resonant 2ε0ν captures in Ru, Cd, Ce, Dy, Dy, W, Os, Pt with the help of HP Ge semiconductor detectors, and ZnWO4 and 106CdWO4 crystal scintillators. No evidence for r-2ε0ν decays was found, and only T1/2 limits were established in the ra...

The potential of Silicon Carbide (SiC) for use in semiconductor nuclear radiation detectors has been long recognized. In fact, the first SiC neutron detector was demonstrated more than fifty years ago (Babcock, et al., 1957; Babcock & Chang, 1963). This detector was shown to be operational in limited testing at temperatures up to 700 oC. Unfortunately, further development was limited by the poo...

2014 The capabilities of Rutherford backscattering in surface analysis are limited by the energy resolution of the solid state detectors and their rapid degradation for heavier projectiles. Here, we investigate the possibilities of an electrostatic analyser (ESA) detecting heavy projectiles (7Li+, 12C+) backscattered from various compound semiconductor surfaces, essentially with respect to mass...

We present the design of a novel, miniature ADR with no moving parts, which could be used to cool detectors for astrophysics research, semiconductor analysis, and mass spectrometry. The miniature ADR relies on the development of a magnetoresistive heat switch. We present measurements of the thermal conductivity of a single-crystal tungsten heat switch at temperatures below 4 K and magnetic fiel...

The need for radiation hard semiconductor detectors for the tracker regions in high energy physics experiments at a future high luminosity hadron collider, like the proposed LHC upgrade, has led to the formation of the CERN RD50 collaboration. The R&D directions of RD50 follow two paths: the optimization of radiation hard bulk materials (Material Engineering) and the development of new detector...