Oxygen Gas Dependence of IGZO Thin Film for TFT Channel Layer

Autor: Kyung Hwan Kim, Yu-sup Jung, Kyu-Ho Lee
Rok vydání: 2011
Předmět:
Zdroj: Molecular Crystals and Liquid Crystals. 550:212-218
ISSN: 1563-5287
1542-1406
DOI: 10.1080/15421406.2011.599748
Popis: Amorphous indium-gallium-zinc-oxide (a-IGZO) thin films on glass were prepared using facing target sputtering (FTS) methods by different oxygen flow rates at room temperature. The a-IGZO films were used as a channel layer for thin film transistors (TFTs). The electrical, optical, and structural properties of a-IGZO thin films were measured by Hall Effect measurement, UV/VIS spectrometer and X-ray diffractometer. The performance and device characteristics of the a-IGZO TFTs were measured by semiconductor parameter analyzer. The transfer characteristics of a-IGZO TFTs saturation exhibited mobility of 19.42 cm2/V.s and the threshold voltage of 4.18 V.
Databáze: OpenAIRE