A REVIEW ON UV-VISIBLE ANALYSIS OF GREEN SYNTHESIZED CARBON DOTS

One intriguing class of nanomaterials having broad applications in several industries is carbon dots (CDs). This paperoffers a thorough analysis of carbon dots made from sweet lime, gooseberry, and lemon with an emphasis on theirsize and visual qualities. The absorption peaks were examined using UV-visible spectroscopy. We used a number oftheoretical techniques using the UV-visible spectroscopic data to clarify the size of these nanoparticles, such as theEffective Mass Approximation (EMA) model,Particle size and bandgap energy were shown to be inversely related, highlighting the important role that quantumconfinement effects play in these nanomaterials. The usefulness and limits of other size assessment techniques, suchas the Hyperchromicity approach, were also investigated. The multifaceted approach not only offers insightfulinformation about the optical and structural characteristics of carbon dots formed from fruit, but it also emphasizeshow crucial it is to use a variety of analytical techniques when characterizing nanomaterials. Our research adds to theincreasing amount of information on carbon dots and their possible uses in everything from optoelectronic devices tobioimaging studies.