Photofield effect and photoresponse properties of the transparent oxide-based BaInZnO thin-film transistors

Si Joon Kim, Bayram Gunduz, Doo Hyun Yoon, Hyun Jae Kim, Ahmed A. Al-Ghamdi, F. Yakuphanoglu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The photoresponse properties of the BaInZnO (BIZO) thin film transistors were investigated by the output and transfer characteristics. The drain current of the BIZO (10% Ba) and BIZO (20% Ba) transistors in turn-on and turn-off states is significantly increased with light illumination. The photoresponse values of the BIZO (10% Ba) and BIZO (20% Ba) transistors in turn-off and turn-on states were found to be 4.56 and 6.27, respectively, while the photoresponse values of the BIZO (10% Ba) and BIZO (20% Ba) transistors in turn-off and turn-on states were found to be 6.14 and 11.714, respectively. The photoresponse values of the transistors in turn-off state are lower than that of turn-on state. This indicates that the dominant photocurrent mechanism of the BIZO transistors is based on photovoltaic effects. The photoresponse properties of the BIZO transistors were improved with the increasing doping ratio of Ba. The obtained results indicate that BIZO transistors could be used as a photosensor for optoelectronic applications.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalSensors and Actuators, A: Physical
Volume193
DOIs
Publication statusPublished - 2013 Feb 4

Fingerprint

Thin film transistors
Oxides
Transistors
transistors
oxides
thin films
Photovoltaic effects
photosensors
Drain current
photovoltaic effect
Photocurrents
Optoelectronic devices
photocurrents
Lighting
Doping (additives)
illumination
output

All Science Journal Classification (ASJC) codes

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

Cite this

Kim, Si Joon ; Gunduz, Bayram ; Yoon, Doo Hyun ; Kim, Hyun Jae ; Al-Ghamdi, Ahmed A. ; Yakuphanoglu, F. / Photofield effect and photoresponse properties of the transparent oxide-based BaInZnO thin-film transistors. In: Sensors and Actuators, A: Physical. 2013 ; Vol. 193. pp. 1-12.
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Photofield effect and photoresponse properties of the transparent oxide-based BaInZnO thin-film transistors. / Kim, Si Joon; Gunduz, Bayram; Yoon, Doo Hyun; Kim, Hyun Jae; Al-Ghamdi, Ahmed A.; Yakuphanoglu, F.

In: Sensors and Actuators, A: Physical, Vol. 193, 04.02.2013, p. 1-12.

Research output: Contribution to journalArticle

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