2D–Materials‐Based Quantum Dots: Gateway Towards Next‐Generation Optical Devices

A major focus on graphene‐based two‐dimensional (2D) materials is highlighted in recent days owing to their fascinating properties with widespread applications in electronic devices, catalysis, photonics and medicine. Here, we critically evaluate 2D materials based quantum dots (QDs) to understand the significant ways of fabrication adopted to meet their challenging demands in par with other 2D nanostructures to be in parallel with the current photonic technology with emphasis on future research scope to make use of these materials. We also discuss the different applications of 2D QDs emphasizing the realization of fluorescent probes which are in great demand to well‐establish these materials in the healthcare sector for the betterment of mankind. This study is a key priority and will bring a great impact in the advancement of simple yet challenging 2D QDs by bringing them towards the next level of applications point‐of‐view similar to that of graphene. 2D materials, including the graphene family, black phosphorus, transition metal dichalcogenides, topological insulators, and 2D‐oxide‐based quantum dots, are critically evaluated towards their realization in magneto‐optical devices, optoelectronic devices, photocatalyst, photothermal agents, fluorescent probes in bioimaging, up/down conversion, and saturable absorbers. This review contributes towards the advancement of simple, yet challenging, 2D quantum dots.