Comparative Study on Electronic, Emission, Spontaneous Property of Porous Silicon in Different Solvents

Table 2

Absorption peaks of Psi in THF, dioxane, and DMSO.

Psi in solvents	Number of wafer piece (Pcs); ( cm)/Pcs	Absorption peaks	Absorbance
THF	4	250 nm; 320 nm	Strong
THF	6	240 nm; 268 nm	Strong; Shoulder
THF	9	243 nm; 288 nm	Strong; Shoulder
1,4-Dioxane	4	223 nm; 322 nm	Strong; Medium
1,4-Dioxane	6	232 nm; 314 nm	Strong; Weak
1,4-Dioxane	9	235 nm; 270 nm	Strong; Shoulder
DMSO	4	267 nm; 313 nm	Strong; split
DMSO	6	272 nm	Strong
DMSO	9	265 nm	Strong