Metal oxide thin film phototransistor for remote touch interactive displays

  • Seung Eon Ahn
  • , Ihun Song
  • , Sanghun Jeon*
  • , Youg Woo Jeon
  • , Young Kim
  • , Changjung Kim
  • , Byungki Ryu
  • , Je Hun Lee
  • , Arokia Nathan
  • , Sungsik Lee
  • , Gyu Tae Kim
  • , U. In Chung
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

165 Citations (Scopus)

Abstract

The photoresponse characteristics of metal-oxide (MeO) semiconductor photosensors have been studied. Compared to the amorphous-Si-based photo-TFT, the MeO photo-TFT demonstrates superior EQE and responsivity. However, due to its inherent slow recovery to the dark state after the illumination is stopped, a unique sensing scheme suitable for the high-speed array operation is used, yet maintaining a simple array architecture as a solution for large-area interactive displays.

Original languageEnglish
Pages (from-to)2631-2636
Number of pages6
JournalAdvanced Materials
Volume24
Issue number19
DOIs
Publication statusPublished - 2012 May 15

Keywords

  • In-Ga-Zn-O/In-Zn-O
  • amorphous oxide semiconductors
  • phototransistors
  • remote in-cell touch
  • thin film transistors

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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