Preparation of carbon quantum dots using bike pollutant soot: Evaluation of structural, optical and moisture sensing properties

Direct and Sensitive Detection of Dopamine Using Carbon Quantum Dots Based Refractive Index Surface Plasmon Resonance Sensor

“…Figure 2 depicts the FTIR spectrum of CQD thin film (black spectrum), which was consistent with previous works and contained a variety of functional groups. The existence of abundant hydroxyl groups at the CQD surface was verified by the presence of the characteristic bands of O–H at the 3929, 3780, 3678, 3530 and 3175 cm −1 peaks [ 52 , 53 , 54 , 55 , 56 ]. The peaks appearing at 3031 and 2882 cm −1 were attributed to C–H stretching vibration [ 52 , 55 , 56 , 57 , 58 , 59 , 60 ].…”

Eco-Friendly and Sustainable Pathways to Photoluminescent Carbon Quantum Dots (CQDs)

“…; this is an ideal strategy for the preparation of GQDs due to their sustainability, renewability, abundance, and low-cost which add to their green attributes [ 31 ]. Mishra et al managed to synthesize carbon dots by using bike pollutant soot [ 130 ] wherein UV–Visible spectroscopy, photoluminescence spectroscopy, TEM, UV–Visible light chamber, and FTIR studies were deployed to characterize the synthesized carbon quantum dots; novelty lies in electrical humidity sensor proposed by using the waste pollutant soot. Rajamanikandan et al synthesized blue emissive CQDs from biowaste peels [ 131 ].…”

Photocurrent conversion capability of a 2D WS2-polyvinyl alcohol matrix and its DFT-based charge carrier dynamics analysis

“…20,21 2D materials may be coupled with other electronic materials including zero-dimensional quantum dots (0D), one-dimensional nanotubes (1D), and polymers (3D) to create mixed-dimensional van der Waals (vdW) heterostructures with new device properties. 22–24 Numerous studies have also been done on certain other characteristics, such as transparency, stretchability, and self-healing. 25,26…”

“…20,21 2D materials may be coupled with other electronic materials including zero-dimensional quantum dots (0D), one-dimensional nanotubes (1D), and polymers (3D) to create mixed-dimensional van der Waals (vdW) heterostructures with new device properties. [22][23][24] Numerous studies have also been done on certain other characteristics, such as transparency, stretchability, and self-healing. 25,26 Polymer materials are potential materials for a new generation of photodetectors because of their inherent flexibility, solution processability, large-area preparation, and tunable molecular structure.…”