Characteristic of nickel oxide microbolometer

Gyo Hun Koo, Young Chul Jung, Sung Ho Hahm, Dong Geon Jung, Yong Soo Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Nickel oxide (NiO) film was formed on the SiO2/Si substrate at the room temperature with water cooling system by reactive RF sputter. The feasibility of bolometric material was investigated, and a microbolometer using the NiO film was fabricated and evaluated. The NiO films were analyzed by using grazing-incidence X-ray diffraction (GIXRD). The NiO(111), NiO (200), and NiO (220) peaks expected as the main spectrum were dominantly appeared on the polycrystalline NiO films. The representative resistivity acquired at the O2/(Ar+O2) ratio of 10% sample was about 40.6 ωcm. The resistivity of 40.6 ωcm obtained in low oxygen partial pressure was inclined to reduce to 18.65 ωcm according to the increase of the O2/(Ar+O2) ratio. The TCR value of fabricated microbolometer was -1.67%/C° at the NiO film resistivity of 40.6 ωcm. The characteristics of fabricated NiO film and microbolometer were demonstrated by XRD patterns, TCR value, and SEM image.

Original languageEnglish
Title of host publicationInfrared Technology and Applications XXXIX
DOIs
StatePublished - 2013
Event39th Infrared Technology and Applications - Baltimore, MD, United States
Duration: 29 Apr 20133 May 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8704
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference39th Infrared Technology and Applications
Country/TerritoryUnited States
CityBaltimore, MD
Period29/04/133/05/13

Keywords

  • microbolometer
  • NiO
  • polycrystalline
  • resistivity
  • room temperature
  • sputtering
  • TCR

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