Fast-LPG Sensors at Room Temperature by α-Fe₂O₃/CNT Nanocomposite Thin Films

Figure 2

(a) XPS survey scan of as-grown CNTs and α-Fe₂O₃/CNT films. (b) XPS deconvolution of (b) Fe 2p, (c) O 1s, and (d) C 1s. The inset in (a) shows the atomic percent (At%) and weight percent (Wt%) of as-grown CNTs and α-Fe₂O₃/CNT films.

(a)

(b)

(c)

(d)