Fig. 3
From: Charge carrier-selective contacts for nanowire solar cells
Effect of HF etching on the VOC. a I−V curve before (dashed line) and after (solid line) HF etching. b The I−V curves of a second sample show the effect of the native oxide regrowth. After the initial increase in performance (yellow), the native oxide slowly grows back (cyan, red, black), reducing the VOC. The vertical dashed lines are guides for the eye
