Quantum dots: an overview of synthesis, properties, and applications

Abstract

Quantum dots (QDs) have sparked great interest due to their unique electronic, optical, and structural properties. In this review, we provide a critical analysis of the latest advances in the synthesis, properties, and applications of QDs. We discuss synthesis techniques, including colloidal and hydrothermal synthesis, and highlight how the underlying principles of these techniques affect the resulting properties of QDs. We then delve into the wide range of applications of QDs, from QDs based color conversion, light-emitting diodes and biomedicine to quantum-based cryptography and spintronics. Finally, we identify the current challenges and future prospects for quantum dot research. By reading this review, readers will gain a deeper understanding of the current state-of-the-art in QDs research and the potential for future development.

Low-dimensional nanostructures for monolithic 3D-integrated flexible and stretchable electronics

“…A significant number of QDs with ternary composition, core/shell structure, doping, and alloying have been developed through the use of reproducible, cost-effective, and environment-friendly methods such as colloidal, hydrothermal, biomimetic, or microwave-assisted synthesis. 63 By altering the size, shape, defect, and/or impurities during synthesis, QDs acquire an exceptional ability to tune their energy bandgap and precisely control their unique properties in electronics, optics, and optoelectronics. 64 Thanks to their high stability, large surface-to-volume ratio, high quantum yield, and improved optical and electronic characteristics, QDs have found widespread applications in optoelectronics, biomedical sensing, quantum cryptography, spintronics, and other fields.…”

“…67 Nevertheless, to promote the commercial applications of QDs, certain crucial issues, including synthesizing high-quality QDs and reducing their toxicity, must be resolved. 63 Furthermore, the integration of QDs into flexible and stretchable electronic devices opens up new dimensional applications for emerging technologies such as the Internet of Things (IoT) and artificial intelligence (AI) in healthcare, quantum computing, and advanced displays.…”

Nanoscale Materials Applying for the Detection of Mycotoxins in Foods

“…The size of QDs is close to the wavelength of electrons, which results in typical quantum confinement and quantum size effects. These effects lead to QDs having optoelectronic properties that are different from those of conventional materials, such as typical luminescence dispersion properties, a long luminescence lifetime, a wide luminescence spectral range, and high fluorescence quantum efficiency, making them highly preferred in optical detection [ 170 , 171 , 172 ]. The research of Solanki reported the first graphene QDs-based fluorescence sensor for AFB 1 [ 173 ].…”

Confirmation of radiation interaction with high‐Z metal‐quercetin complex to utilize factor for radiation protection materials

“…Considering these concerns, recent research endeavors have been exploring alternative radiation protection materials, delving into the potential of metal nanoparticles, quantum dots, graphene, carbon nanotubes, and organic polymers. 17,18 These materials offer unique advantages and characteristics that can further enhance solar cell performance and durability while potentially addressing the resource dependency challenges associated with traditional lanthanide-based radiation protection. 19 Moreover, the scientific community has extensively investigated metal-organic complex and metal-phenol network materials.…”