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- Cadmium-based Quantum Dots
With the development of nanometer synthesis technology, cadmium-based quantum dots have been widely synthesized. Organic and aqueous synthesis methods are the most widely reported methods. Cadmium based quantum dots have become the most widely studied photoactive materials due to their narrow band gap, high luminous efficiency, absorption of visible light and convenient preparation.
Fig.1 Cadmium-based quantum dots
Cadmium-based quantum dots mainly include CdS, CdSe, CdTe quantum dots and their composites. Due to their unique photoelectric properties and excellent stability, they have been widely used in photoelectric sensors, light-emitting devices and other fields.
Fig.2 Schematic representation of (A) the synthesis of the CdTe/ZnO nanohybrids, and (B) the construction and photoelectrochemical strategy of the DNA biosensor [1]
Fig.3 Schematic preparation of CdTe/CdS@ZnS−SiO2QDs and their applications in WLEDs [2].
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