Fluorescent quantum dots are widely used in biological imaging due to their unique optical properties. They provide high brightness and photostability, making them ideal for tracking and visualizing cellular processes in real-time. In medical diagnostics, they are employed as fluorescent labels for detecting diseases at an early stage, such as cancer biomarkers. In optoelectronics, these quantum dots are utilized in the development of high-efficiency displays and lighting systems, including QLED TVs and energy-saving LEDs. Their tunable emission wavelengths allow for precise color control, enhancing visual quality. Additionally, they play a significant role in solar energy applications. Quantum dots are incorporated into solar cells to improve light absorption and energy conversion efficiency, contributing to the advancement of renewable energy technologies. In environmental monitoring, they are used as sensors to detect pollutants and toxins in water and air, offering high sensitivity and specificity. Their versatility and adaptability make them a valuable tool across various scientific and industrial fields.