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Mechanically stable metal layers for ohmic and blocking contacts on CdZnTe detectors by electroless deposition

  • Autori: Bettelli, M.; Benassi, G.; Nasi, L.; Zambelli, N.; Zappettini, A.; Gombia, E.; Abbene, L.; Principato, F.; Calestani, D.
  • Anno di pubblicazione: 2016
  • Tipologia: Contributo in atti di convegno pubblicato in volume
  • OA Link:


CdZnTe detectors are commonly exploited for the detection of gamma rays. However, obtaining mechanical stable, low noise contacts on CdZnTe is still an issue. In particular, ohmic contacts would be preferable for high flux applications. In this work, we show that it is possible to obtain mechanical stable gold contacts by electroless deposition in methanol solution. Moreover, we show that electroless deposited nickel contacts are also mechanical stable and are good candidates for the realization of ohmic contacts on high resistivity CdZnTe crystals.