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Structural and pyroelectric properties of YBa2Cu3O6+x for the uncooled infrared detectors
- Authors
- Nam, Sung-Pill; Noh, Hyun-Ji; Lee, Sung-Gap
- Issue Date
- Dec-2009
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- YBCO; Thick films; Screen-printing; Pyroelectric; TCR
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.10, no.6, pp 803 - 806
- Pages
- 4
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 10
- Number
- 6
- Start Page
- 803
- End Page
- 806
- ISSN
- 1229-9162
2672-152X
- Abstract
- The uncooled pyroelectric infrared based on semiconductor YBa2Cu3O6+x (YBCO) have been investigated. YBCO powder was prepared by a mixed oxide method and YBCO thick films were fabricated by the screen-printing method. The YBCO thick films were sintered at 820-945 degrees C. As a result of the Thermogravimetry and differential thermal analysis (TG-DTA), endothermic peak was observed at around 800 degrees C due to the formation of the tetragonal phase. YBCO thick films showed the typical XRD patterns of tetragonal phase and second phase was observed. The average particle size of YBCO thick films was about 1.67 mu m. The thickness of the YBCO thick films was about 60 mu m. The temperature coefficient of resistance (TCR = 1/R* dR/dT) of 930 degrees C-20min sintered YBCO thick films was -2.3% and the pyroelectric coefficient was 511.1 x 10(-7) C/cm(2)K.
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