Polycrystalline Indium Gallium Tin Oxide Thin-Film Transistors with High Mobility Exceeding 100 cm2/Vs

  • Kim, Bo Kyoung
  • On, Nuri
  • Choi, Cheol Hee
  • Kim, Min Jae
  • Kang, Shinhyuck
  • ... Jeong, Jae Kyeong
  • 외 1명
Citations

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75

초록

This letter reports the fabrication of high performance polycrystalline InGaSnO (IGTO) thin-film transistors (TFTs) at a low temperature of 400 °C. The microstructure of IGTO films was analyzed using X-ray diffraction and high-resolution transmission electron microscopy. The fabricated polycrystalline IGTO TFTs exhibited an unexpected high mobility of 116.5 cm2/Vs, threshold voltage of 0.47 V, low subthreshold gate swing of 134 mV/decade, and {I}_{ON/OFF} ratio of > 1times 10{9}. Moreover, the stable behavior against external gate bias stress was observed for crystalline IGTO TFTs, which was attributed to the high degree of metal-oxygen lattice ordering.

키워드

Crystallizationhigh mobilityindium gallium tin oxidereliabilitythin-film transistorsGallium compoundsHigh resolution transmission electron microscopyIndium compoundsTemperatureThin film circuitsThin filmsThreshold voltageTin oxidesGate-bias stressHigh mobilityLow temperaturesOxygen latticePolycrystallineSubthresholdThin-film transistor (TFTs)Tin oxide thin filmThin film transistors
제목
Polycrystalline Indium Gallium Tin Oxide Thin-Film Transistors with High Mobility Exceeding 100 cm2/Vs
저자
Kim, Bo KyoungOn, NuriChoi, Cheol HeeKim, Min JaeKang, ShinhyuckLim, Jun HyungJeong, Jae Kyeong
DOI
10.1109/LED.2021.3055940
발행일
2021-03
유형
Article
저널명
IEEE Electron Device Letters
42
3
페이지
347 ~ 350