Search results for "Deep acceptor level"

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Time-dependent electric field in Al/CdTe/Pt detectors

2015

Abstract Al/CdTe/Pt detectors are very attractive devices for high-resolution X-ray spectroscopy, even though they suffer from bias-induced time instability (polarization). Polarization phenomena cause a progressive time-degradation of the spectroscopic performance of the detectors, due to hole trapping and detrapping from deep acceptor levels that directly control the electric field distribution. In this work we present experimental investigations on the electric field profile of planar Al/CdTe/Pt detectors by means of Pockels effect measurements. The time/temperature dependence of the electric field was investigated in a long time window (up to 10 h) and the correlation with the reverse c…

PhysicsNuclear and High Energy PhysicsDeep acceptor levelbusiness.industryTrappingAcceptorPockels effectCadmium telluride photovoltaicsCdTe detectorX-ray and gamma ray spectroscopyPlanarPolarizationElectric fieldElectric fieldOptoelectronicsAtomic physicsPolarization (electrochemistry)businessSpectroscopyPockels effectInstrumentationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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