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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Karadzhinova-Ferrer, Aneliya Georgieva
Lappeenranta-Lahti University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2022Characterization of Heavily Irradiated Dielectrics for Pixel Sensors Coupling Insulator Applicationscitations
- 2022Multispectral photon-counting for medical imaging and beam characterization - A project reviewcitations
- 2020Processing of AC-coupled n-in-p pixel detectors on MCz silicon using atomic layer deposited aluminium oxidecitations
- 2019Effects of Defects to the Performance of CdTe Pad Detectors in IBIC Measurementscitations
- 2019Cadmium Telluride X-ray pad detectors with different passivation dielectricscitations
- 2017Advanced processing of CdTe pixel radiation detectorscitations
- 2014Pixel Detector Upgrade of CMS Experiment
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article
Cadmium Telluride X-ray pad detectors with different passivation dielectrics
Abstract
The suitability of two low-temperature dielectric passivation layer processes for the fabrication of Cadmium Telluride (CdTe) X-ray detectors has been investigated. The CdTe crystals with a size of (10101) mm were coated with sputtered aluminum nitride (AlN) or with aluminum oxide (AlO) grown by the atomic layer deposition (ALD) method. The metallization contacts of the detectors were made by titanium tungsten (TiW) and gold (Au) metal sputtering depositions. The pad detector structures were patterned with proximity-contactless photolithography techniques followed by lift-off patterning of the electrodes. The detector properties were characterized at room temperature by Transient Current Technique (TCT) measurements. The obtained results were compared and verified by numerical TCAD simulations of the detector response. Our results indicate that higher signal charge was collected from samples with AlO. Furthermore, no significant laser light induced signal decay by CdTe material polarization was observed within order of 30 min of continuous illumination.