Fabrication and electrical properties of YBa2Cu3O7-x thin film prepared by Sol-gel method for uncooled infrared detectors
- Authors
- Cho, Chang-Hyun; Lee, Sung-Gap; Lee, Tae-Ho; Lee, Ju
- Issue Date
- Jun-2013
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- YBCO; Thin film; Sol-gel
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.14, no.3, pp.436 - 439
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 14
- Number
- 3
- Start Page
- 436
- End Page
- 439
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/162673
- DOI
- 10.36410/jcpr.2013.14.3.436
- ISSN
- 1229-9162
- Abstract
- In this study, we fabricated the semiconducting YBCO thin film by sol-gel method. Precursor solution had been fabricated using Y acetate, Ba hydroxide and Cu acetate as starting materials, and propionic acid (PPA) and propylamine (PA) as solvent. The YBCO precursor solution was passed through a syringe filter and spin-coated on the SiO2-coated Si substrate using a spinner operated at 3,000 rpm for 20 sec. YBCO thin films were dried at 500 degrees C for 2 h and annealed at 750 degrees C for 1 h. Then, the structural and electrical characteristics of YBCO thin films were measured with a variation of solvent ratios. The films PPA/PA at 8 : 1 showed the more obvious YBa2Cu3O7-x phase and tetragonal phase. The thickness of all the films was approximately 250 similar to 330 nm and the average grain size of the YBCO thin films PPA/PA at 8 : 1 was about 60 nm. Temperature resistance coefficient (TCR), responsivity and detectivity of the YBCO thin films PPA/PA at 8 : 1 were -3.3%/K at room temperature, 15.94 V/W and 2.44 x 10(6) cmHz1/2/W, respectively.
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