Anion substitution modulation of nonlinear absorption properties in two-dimensional SnS2 and Janus SnSSe

Key Points

• Modulation of nonlinear absorption properties is significantly observed with anion substitution.
• The study shows an increase in nonlinear optical responses for SnS2 and SnSSe materials.
• Observational analysis across various anion substitutions demonstrates changes in absorption characteristics.
• These findings highlight the importance of anion substitution in enhancing nonlinear properties for optoelectronic applications.