Investigation of copper electrodes for mercuric iodide detector applications
- 15 June 1990
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 67 (12) , 7265-7267
- https://doi.org/10.1063/1.344560
Abstract
Copper diffusion in mercuric iodide was studied by low-temperature photoluminescence (PL) spectroscopy and Auger electron spectroscopy. A broad radiative emission band at a wavelength of about 6720 Å in the PL spectra was found to be related to Cu incorporation in the crystal. PL spectra obtained from surface doping experiments indicate that Cu is a rapid diffuser in HgI2 bulk material. Auger electron spectroscopy performed as a function of depth from the crystal surface confirms the rapid bulk diffusion process of Cu in HgI2. Fabrication of HgI2 nuclear detectors with Cu electrodes indicates that Cu is not acceptable as an electrode material, which is consistent with the fact that it diffuses easily into the bulk crystal and introduces new radiative recombination centers.This publication has 11 references indexed in Scilit:
- Rutherford backscattering and Auger spectroscopy of mercuric iodide detectorsNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1989
- Degradation of mercuric iodide crystals on agingJournal of Electronic Materials, 1989
- The Fabrication of Mercuric Iodide Detectors for Use in Wavelength Dispersive X-Ray Analysers and Backscatter Photon MeasurementsMRS Proceedings, 1982
- State-of-the-Art X-Ray Detectors Fabricated on PCG Grown Mercuric Iodide Platelets.MRS Proceedings, 1982
- Vapor growth of HgI2 by periodic source or crystal temperature oscillationJournal of Crystal Growth, 1976
- Properties of Vapour Phase Grown Mercuric Iodide Single Crystal DetectorsIEEE Transactions on Nuclear Science, 1975
- Preliminary results on mercuric iodide nuclear radiation detectorsNuclear Instruments and Methods, 1974
- Gamma Ray Efficiency Comparisons for Si(Li), Ge, CdTe and HgI2 DetectorsIEEE Transactions on Nuclear Science, 1973
- A Mercuric Iodide Gamma-Ray SpectrometerIEEE Transactions on Nuclear Science, 1972
- Mercury iodide as a gamma spectrometerNuclear Instruments and Methods, 1971