Importance of the Electrolyte in Obtaining Porous Silicon and How It Modifies the Optical and Structural Proprieties: Optical and Microstructural Investigation

Table 4

The samples obtained with hydrogen peroxide shows an increment in the quantity and porous size in comparison with the samples obtained without this.

Sample	Electrolyte	Porous size
M1	1 : 2 (HF/CH3-CH2-OH)	87–226 nm
M2	1 : 2 (HF/CH3-CH2-OH)	348–400 nm
M3	2 : 1 : 1 (H2O2/HF/CH3-CH2-OH)	522–679 nm
M4	2 : 1 : 1 (H2O2/HF/CH3-CH2-OH)	766 nm–1.06 µm