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Effects on annealing temperature for solution-processed IZTO TFTs by nitrogen incorporation

  • Bong Jin Kim
  • , Hyung Jun Kim
  • , Tae Sik Yoon
  • , Yong Sang Kim
  • , Hyun Ho Lee
  • Myongji University

Research output: Contribution to journalArticlepeer-review

Abstract

The effects on electrical properties of solution-processed indium zinc tin oxide (IZTO) thin film transistors (TFTs) by nitrogen incorporation were investigated as a function of annealing temperature. The nitrogen incorporation was controlled by NH4 OH addition into a precursor solution of zinc, indium, and tin chlorides. At 600°C annealing, the nitrogen-doped IZTO TFTs showed a field-effect mobility of 5.33 cm2 /V s with an on/off ratio of 2.05× 107. By the nitrogen incorporation, the annealing temperature could be lowered to 400°C for the fabrication of TFTs having a field-effect mobility of 0.303 cm2 /V s. Physical and chemical analyses on films at various annealing temperatures were performed and compared, respectively.

Original languageEnglish
Pages (from-to)H419-H422
JournalElectrochemical and Solid-State Letters
Volume13
Issue number12
DOIs
StatePublished - 2010
Externally publishedYes

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