Figure 3
From: The self-activated radical doping effects on the catalyzed surface of amorphous metal oxide films

Variations of negative Vth shift under NBTS and NBIS stability of SRD a-IGZO TFTs with stress times: (a) NBTS and (c) NBIS stability of pristine, (b) NBTS and (d) NBIS stability of SRD a-IGZO TFTs.