Nitrogen doping in organic molecules has been widely studied for its ability to significantly modulate the optical properties of the material. Nitrogen atoms, with their lone pair of electrons, can introduce new electronic states within the material's band structure, often near the Fermi level . This modification leads to changes in the absorption spectrum, enabling the material to absorb light over a broader range, including in the visible and near-infrared regions. The incorporation of nitrogen can shift the absorption edge of organic molecules to longer wavelengths, enhancing their light-harvesting capabilities . Additionally, nitrogen doping can alter the energy levels of the frontier molecular orbitals, such as the HOMO-LUMO gap, thereby influencing the electronic transitions that govern optical absorption . This results in increased optical absorption efficiency and improved photophysical properties, making nitrogendoped organic materials ideal candidates for applications in optoelectronic devices, sensors, and photocatalysis.