Abstract
Abstract: In this work, a high performance, rollable a‐IGZO TFT on a 125 um thick PEN substrate with robust nanocomposite dielectric layer has been demonstrated. The nanocomposite dielectric consists of cross‐linked PVP and aluminum oxide (Al2O3) nanoparticles with the highest dielectric constant of 8. The a‐IGZO TFT shows mobility of 5.0 and 2.0 cm2/V‐s on glass and PEN, respectively. After rolling the a‐IGZO TFT with diameter of 4 mm (strain > 1.5 %) over 100 times, the current voltage characteristics almost unchanged.
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