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Synthetic Cd{sub 1-x}ZnxTe or 'CZT' crystals are highly suitable for g-spectrometers operating at room temperature. Secondary phases (SP) within CZT, presumed to be Te metal, have detrimental impacts on the charge collection efficiency of fabricated device. Using analytical techniques rather than arbitrary theoretical definitions, we identify two SP morphologies: (i) many void, 20-{mu}m 'negative' crystals with 65-nm nanoparticle residues of Si, Cd, Zn, and Te and (ii) 20-{mu}m hexagonal-shaped bodies, which are composites of metallic Te layers with cores of amorphous and polycrystalline CZT material that surround the voids.
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| Authors: |
Duff, M.;
Hunter, D;
Burger, A;
Groza, M;
Buliga, V;
Bradley, J;
Graham, G;
Dai, Z;
Lanzirotti, A;
et. al.
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| Publication Date: | 2009 Jan 01 |
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| OSTI Identifier: | 980055 |
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| Report Number(s): | BNL--92973-2010-JA |
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| DOE Contract Number: | DE-AC02-98CH10886 |
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| Resource Type: | Journal Article |
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| Resource Relation: | Journal Name: Journal of Materials Research; Journal Volume: 24; Journal Issue: 4 |
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| Research Org: | Brookhaven National Laboratory (BNL) National Synchrotron Light Source |
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| Sponsoring Org: | Doe - Office Of Science |
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| Country of Publication: | United States |
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| Language: | English |
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| Format: | Size: 1361 - 1367 |
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| Other Number(s): | Journal ID: ISSN 0884-2914; JMREEE; TRN: US201015%%1440 |
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| Subject: | 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CHARGE COLLECTION; CRYSTALS; EFFICIENCY; LAYERS; MATERIALS; RESIDUES; SPECTROMETERS; VOIDS |
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| Related Subject: | national synchrotron light source |
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| Update Date: | 2011 Dec 05 |
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