A plastic-based bolometer array sensor using carbon nanotubes for low-cost infrared imaging devices

Kaoru Narita, Ryosuke Kuribayashi, Ersin Altintas, Hiroko Someya, Kenichiro Tsuda, Keishi Ohashi, Toru Tabuchi, Shuichi Okubo, Masaharu Imazato, Shigeyuki Komatsubara

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We have developed an infrared image sensor based on bolometers on a plastic substrate that is potentially ultra low-cost due to its simple structure consisting of mainly organic materials. The bolometer includes a thermal isolator made of a very low thermal conductive polymer (parylene) and a newly developed, highly sensitive (TCR <-2%/K) carbon nanotube thin film thermistor. Experiment results showed that the responsivity of our sensor was 138 V/W (at VB = 2 V) and the estimated noise equivalent temperature difference (NETD) at room temperature was 1.1 K. The row-column type 64-pixel (8 × 8) array sensor was fabricated and evaluated while the image of a heat source was focused on the sensor array by a Ge lens. Utilizing the test readout circuit based on switching modules, we obtained the images of the heat source and confirmed the basic operation of IR imaging.

Original languageEnglish
Pages (from-to)142-147
Number of pages6
JournalSensors and Actuators, A: Physical
Volume195
DOIs
Publication statusPublished - 2013 Apr 26
Externally publishedYes

Keywords

  • Bolometer
  • Carbon nanotube
  • Infrared image sensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

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  • Cite this

    Narita, K., Kuribayashi, R., Altintas, E., Someya, H., Tsuda, K., Ohashi, K., Tabuchi, T., Okubo, S., Imazato, M., & Komatsubara, S. (2013). A plastic-based bolometer array sensor using carbon nanotubes for low-cost infrared imaging devices. Sensors and Actuators, A: Physical, 195, 142-147. https://doi.org/10.1016/j.sna.2013.03.008