An iridescent carbon nitrogen movie g-C3N4 was fashioned by chemical vapor deposition (CVD) on an aluminum sheet ranging from melamine cyanurate as a precursor at a temperature of 600 °C. The movie was simply indifferent and totally characterised utilizing numerous strategies, together with X-ray powder diffraction, UV − Vis and infrared spectroscopies, and discipline emission scanning microscopy. The fabric exhibited a specific layered microstructure consisting of stacks of nano-/micro-sized oak-leave-shaped particles. The UV − Vis spectrum exhibited two outlined bands equivalent to localized electrons; nevertheless, the obvious direct bandgap was 3.1 eV, just like that of bulk g-C3N4. The IR spectrum was just like that of bulk materials, with variations in band intensities of the bending zone of tri-s-triazine items, within the vary of 900 − 800 cm−1. The two D unfolding of the fabric with the formation of a skinny layer composed of oak-leave-like particles led to structural iridescent colours. Because of this, purposes in optoelectronics and photovoltaic cells based mostly on skinny movies ready by the reported synthesis route could also be envisaged, making the most of the properties of structural colours.