IJM07 Spectroscopic Characteristics of Carbon Nitride Nanostructures Synthesized by Fast Glow Discharge-Induced Reaction of Methane and Ammonia

Abstract

In this work, the spectroscopic characteristics of carbon nitride nanostructures synthesized by the reaction of methane and ammonia gases were studied. This reaction was induced by electric power transferred to the reaction volume throughout argon fast glow discharge at high pressures at room temperature. This power was applied to the reaction as short pulses to produce carbon nitride nanoparticles without production of cyanogen molecules. A clear correlation between synthesis parameters and material properties was revealed. The refractive index measurements show that shorter pulse durations yield nanoparticles with higher refractive indices, likely due to increased material density or specific structural arrangements. These findings highlight the importance of precise pulse duration control for tailoring carbon nitride's optical properties for various applications. Longer pulse durations (1 ms) lead to higher UV-Vis absorption, suggesting increased yield or more developed π-electron systems. The consistent formation of characteristic C-N bonding was confirmed regardless of pulse duration. Most notably, shorter pulse durations (0.01 ms) result in a significantly higher refractive index, indicating a denser or more ordered material.