The Role of Solvent Environment on the Optical Behavior of Chemically Synthesized Silicon Nanoparticles

Table 1

List of absorption peaks, emission peaks, and corresponding intensity of the Si-NPs in different solvents.

Solvent	Polarity index	Absorption peak maxima	Absorbance	Emission peaks (nm)	Corresponding intensity
Ethanol	5.2	220 nm; 260 nm	Strong; Shoulder	432.3	18,629
DMF	6.4	212 nm; 276 nm	Weak; Strong	425.2	6248
DMSO	7.2	272 nm	Strong	430; 665	63,380; 1434
Dioxane	4.8	284 nm	Strong	612	21,464
Acetonitrile	5.8	228 nm; 260 nm	Strong; Shoulder	612	1508
Chloroform	4.1	248 nm; 260 nm; 332 nm	Strong; Week; Week	431; 617	248.20; 131.118
Carbon Tetrachloride	1.6	272 nm	Strong	603	1027
Benzene	2.7	284 nm	Strong	—	—
Hexane	0	244 nm	Strong	402; 429	358; 248