Carbon Quantum Dots for Smart Electronic Devices

Nanoscale carbon-based materials called carbon quantum dots (CQDs) have become a competitive challenger in the field of smart electronics. A thorough review of the synthesis, characteristics, and uses of CQDs in contemporary electronics is given in this book chapter. Because of their distinctive electrical, optical, and chemical characteristics, CQDs which are often smaller than 10 nm are well-suited for a variety of uses. The chapter begins by exploring the various synthesis methods used to produce CQDs, highlighting their versatility and scalability. It then delves into the intriguing properties of CQDs, including their size-dependent behavior, photoluminescence, high surface area, and biocompatibility. These properties form the foundation upon which their diverse applications in smart electronic devices are built. The core of the chapter elucidates the extensive applications of CQDs, spanning from quantum dot solar cells and light-emitting diodes to sensors, energy storage devices, flexible electronics, and biomedical devices. The discussion outlines how CQDs contribute to improving device efficiency, sustainability, and functionality in each application domain. This chapter addresses issues of scalability, long-term stability, and toxicity assessment, offering insights into the practical hurdles that must be overcome for widespread adoption. Additionally, it touches upon the integration of CQDs into existing electronic architectures, a pivotal step for their seamless inclusion in the electronics industry. As we traverse the landscape of Carbon Quantum Dots for Smart Electronic Devices, it becomes evident that these tiny carbon nanoparticles hold immense potential to revolutionize the electronics industry. Their synthesis methods and properties pave the way for innovative solutions in smart electronics, promising a future of devices that are not only smarter but also more efficient, sustainable, and adaptable to the evolving needs of society.