Figure 4From: Enhanced electrical properties in sub-10-nm WO3 nanoflakes prepared via a two-step sol-gel-exfoliation methodBearing area analysis for typical individual sol-gel-developed and exfoliated WO 3 nanoflakes sintered at 550°C (A) and 650°C (B). Inserts: appropriate AFM images of sol-gel-developed and exfoliated WO3 nanoflakes, respectively.Back to article page