Multifaceted Potential of Binary, Ternary, and Quaternary Metal Sulfide Quantum Dots and Their Versatile Applications

Metal sulfide quantum dots (QDs) have emerged as a cornerstone of innovation in the semiconductor industry owing to their unique characteristics and broad range of applications. This work presents a comprehensive analysis of the significant progress made in this field, exploring the synthesis techniques for binary, ternary, and quaternary QDs. Their remarkable structural, optical, and electrical properties, such as high quantum yield, stability, and tunable bandgap, make them indispensable in optoelectronic devices, sensors, and catalytic processes. The review also focuses on the latest global patent applications, illustrating the highly competitive and dynamic nature of the field. These patents highlight innovations in synthesis methods, enhanced QD performance, and emerging applications, showcasing growing efforts to harness the full potential of these QDs. By offering invaluable insights into their synthesis, properties, and applications, this paper paves the way for further exploration and development in this rapidly advancing and promising area of research.