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Electrical properties of cobalt-doped zinc manganite ceramics for infrared detectors

Authors
Kim, Kyeong-MinHan, Myung-SooLee, Sung-Gap
Issue Date
Aug-2016
Publisher
KOREAN ASSOC CRYSTAL GROWTH, INC
Keywords
Zn-Co-Mn oxide; Electrical properties; Resistivity; Responsivity; Detectivity
Citation
JOURNAL OF CERAMIC PROCESSING RESEARCH, v.17, no.8, pp 795 - 798
Pages
4
Indexed
SCI
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF CERAMIC PROCESSING RESEARCH
Volume
17
Number
8
Start Page
795
End Page
798
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/15360
ISSN
1229-9162
2672-152X
Abstract
Zn1.10CoxMn1.90-xO4 (0 <= x <= 0.25) specimens were prepared using a conventional solid state reaction method. We investigated the structural and electrical properties with varying amounts of Co for application in IR detectors. All specimens exhibited a very dense microstructure and the average grain size decreased slightly with an increase in the composition ratio of Co ions. The Zn1.10Co0.05Mn1.85O4 specimen shows the highest B-value of 5025 K, and the Zn1.10Co0.25Mn1.65O4 specimen shows the minimum resistivity of 100 k Omega center dot cm. The responsivity, s noise voltage and detectivity of the Zn1.10Co0.10Mn1.80O4 specimen are 0.03 V/W, 6.36 x 10(-5)V and 2.010(4) cmHz(1/2)/W, respectively.
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