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Electrical Properties of Semiconducting YBa2Cu3O7-x Thin Film for Uncooled Infrared Detectors
- Issue Date
- 1-Jan-2013
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- Semiconducting YBCO; Sol-gel; thin film
- Citation
- INTEGRATED FERROELECTRICS, v.142, no.1, pp 52 - 60
- Pages
- 9
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- INTEGRATED FERROELECTRICS
- Volume
- 142
- Number
- 1
- Start Page
- 52
- End Page
- 60
- ISSN
- 1058-4587
1607-8489
- Abstract
- Uncooled pyroelectric infrared based on semiconducting YBa2Cu3O6+x (YBCO) thin films have been investigated. YBCO precursor solutions were prepared by sol-gel method and YBCO films were fabricated by the spin coating method and structural and electrical properties with variation of annealing temperature were studied. As a result of the differential thermal analysis and thermogravimetry (DTA-TG) analysis, endothermic peak was observed at around 750 degrees C due to the formation of the tetragonal phase. The crystal structure of the YBCO film annealed at 750 degrees C was polycrystalline tetragonal phase. The thickness of all the films was approximately 0.26 approximate to 0.31m and average grain size of the YBCO film sintered at 750 degrees C was about 60nm. Temperature resistance coefficient (TCR), responsivity and detectivity of the YBCO film sintered at 750 degrees C were 3.7%/K at room temperature, 14.47V/W and 7.23 x 10(6) cm Hz(1/2)/W, respectively.
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