New Approaches for Making Large-Volume and Uniform CdZnTe and CdMnTe Detectors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10125923" target="_blank" >RIV/00216208:11320/12:10125923 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TNS.2012.2202917" target="_blank" >http://dx.doi.org/10.1109/TNS.2012.2202917</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TNS.2012.2202917" target="_blank" >10.1109/TNS.2012.2202917</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New Approaches for Making Large-Volume and Uniform CdZnTe and CdMnTe Detectors

Popis výsledku v původním jazyce

Although CdZnTe (CZT) and CdMnTe (CMT) materials are leading contenders for room-temperature semiconductor detectors, nonetheless, both materials have limitations hindering their full usage in producing economical, uniform, large-volume devices due to their grain/twin boundaries, material purity, secondary-phase Te defects and material segregation. We tried to prevent the generation of twin and subgrain boundaries to achieve large-volume CZT crystals by means of local temperature control between the CZTmelt and quartz crucible. Also, we have expanded the understanding of the electrical and structural properties of coherent/incoherent twin boundaries. The high residual impurities in the starting source materials, especially in manganese, were identified as obstacles against obtaining high-performance CMT detectors. We found that purifying manganese telluride (MnTe) via a floating Te melt-zone very effectively removes impurities, leading to better detectors. CMT detectors fabricated wit

Název v anglickém jazyce

New Approaches for Making Large-Volume and Uniform CdZnTe and CdMnTe Detectors

Popis výsledku anglicky

Although CdZnTe (CZT) and CdMnTe (CMT) materials are leading contenders for room-temperature semiconductor detectors, nonetheless, both materials have limitations hindering their full usage in producing economical, uniform, large-volume devices due to their grain/twin boundaries, material purity, secondary-phase Te defects and material segregation. We tried to prevent the generation of twin and subgrain boundaries to achieve large-volume CZT crystals by means of local temperature control between the CZTmelt and quartz crucible. Also, we have expanded the understanding of the electrical and structural properties of coherent/incoherent twin boundaries. The high residual impurities in the starting source materials, especially in manganese, were identified as obstacles against obtaining high-performance CMT detectors. We found that purifying manganese telluride (MnTe) via a floating Te melt-zone very effectively removes impurities, leading to better detectors. CMT detectors fabricated wit

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Nuclear Science

ISSN

0018-9499

e-ISSN

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Svazek periodika

59

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1510-1515

Kód UT WoS článku

000307893900005

EID výsledku v databázi Scopus

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