Electrical properties of semiconducting YBa2Cu3O 7-x thin film for uncooled infrared detectors

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Uncooled pyroelectric infrared based on semiconducting YBa 2Cu3O6+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 around750°C due to the formation of the tetragonal phase. The crystal structure of the YBCO film annealed at 750°C was polycrystalline tetragonal phase. The thickness of all the films was approximately 0.26 ∼ 0.31 μm and average grain size of the YBCO film sintered at750°C was about 60 nm. Temperature resistance coefficient (TCR), responsivity and detectivity of the YBCO film sintered at750°C were 3.7%/K at room temperature, 14.47 V/W and 7.23 × 106 cm Hz 1/2/W, respectively.

Original languageEnglish
Pages (from-to)52-60
Number of pages9
JournalIntegrated Ferroelectrics
Volume142
Issue number1
DOIs
StatePublished - 2013
EventInternational Symposium on Integrated Functionalities, ISIF 2012 - Hong Kong, Hong Kong
Duration: Jun 18 2012Jun 21 2012

Funding

This work was supported by the Korea Research Foundation (KRF) grant funded by the Korea government (MEST). (No. 03-2011-0223).

Keywords

  • Semiconducting YBCO
  • Sol-gel
  • Thin film

Fingerprint

Dive into the research topics of 'Electrical properties of semiconducting YBa2Cu3O 7-x thin film for uncooled infrared detectors'. Together they form a unique fingerprint.

Cite this