Effect of HF Concentration on Physical and Electronic Properties of Electrochemically Formed Nanoporous Silicon

Figure 1

Adsorption (ads.)⧵desorption (des.) isotherms of N₂ at 77 K in PS for the sample (a) (prepared with 3 : 7 ⇔ HF : ethanol), sample (b) (prepared with 4 : 6 ⇔ HF : ethanol) and sample (c) (prepared with 6 : 4 ⇔ HF : ethanol).

(a)

(b)

(c)