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With the rise of
However, the novel high-flux CdZnTe showed a different behavior with respect to the standard grade when combined with gold electroless contacts. While they typically resulted in blocking contacts with very low dark leakage current on standard low-flux CZT, they led instead to high leakage current even at low biasing on high-flux material.
In this work, a detailed study on the behavior of platinum and gold contacts is shown. The behavior of several HF-CZT sensors with different contact configuration (Au/Au, Au/Pt, Pt/Au, Pt/Pt) has been investigated using current-voltage characteristics in dark and under X-ray irradiation, as well as gamma-ray spectroscopy. The linearity of Au/HF-CZT/Pt sensors under high X-ray fluxes up to