Unique Deep Level in Spectroscopic CdZnTe: Compensation, Trapping, and Polarization
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10125920" target="_blank" >RIV/00216208:11320/12:10125920 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/TNS.2012.2191159" target="_blank" >http://dx.doi.org/10.1109/TNS.2012.2191159</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TNS.2012.2191159" target="_blank" >10.1109/TNS.2012.2191159</a>
Alternative languages
Result language
angličtina
Original language name
Unique Deep Level in Spectroscopic CdZnTe: Compensation, Trapping, and Polarization
Original language description
As yet, the role of the main native defects in the compensation, trapping, and polarization of x-ray and gamma-ray room-temperature detectors based on semi-insulated cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) is indeterminate. To betterquantify it, we assessed the ionization energy, i.e., the binding energy for the hole of the second (2-/1-) acceptor level of Cd vacancies in Cd1-xZnxTe(x approximate to 0.1). We characterized the defects in several ways, including measuring the photoconductivity at below-bandgap excitation, and photoconductivity quenching by comparing their positions in the bandgap with that of the native energy-levels in CdTe quantum dots (QDs) and other II-VI semiconductors. In this way, we determined unambiguouslythat a deep acceptor, Cd vacancy, behaves as a doubly charged acceptor, and the second ionization level is located at similar to Ev+(0.5 +/- 0.05) eV, i.e., relatively far from the midgap similar to 0.8 eV. This configuration may determin
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/GAP102%2F10%2F0148" target="_blank" >GAP102/10/0148: Influence of Te inclusions on performance of CdTe and CdZnTe radiation detectors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Nuclear Science
ISSN
0018-9499
e-ISSN
—
Volume of the periodical
59
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
1531-1535
UT code for WoS article
000307893900009
EID of the result in the Scopus database
—