Interaction of CdSe Quantum Dots with some aliphatic and aromatic diamines

Rakhi Thareja, Jyoti Singh, Rita Kakkar



Recent advances in the chemistry of semiconductor nanocrystal show that CdSe quantum dots have set the latest trends in the era of reduced dimensionality. The interactions of these CdSe quantum dots with organic molecules have led to new materials showing fascinating physical properties of potential technological importance. It is very to explore the interactions of quantum dots with various molecules for which they can be used as effective sensors with wide range of applications. In order to develop sensors for the detection of amines, several investigations have already been carried out. Earlier studies have already revealed that the direct interaction between the CdSe surface and amine functional groups passivates the surface and blocks the trapping of electrons at the defect sites. The latest research in the field of applications of quantum dots suffers huge drawbacks because of inadequate results available for the systematic study of structural and electronic properties of quantum dots as a sensor.This work provides an overview of efforts made to interactCdSe quantum dots with various aliphatic (Ethylene diamine, Hexamethylenediamine) and aromatic diamines (Orthophenylenediamine, MetaphenylenediamineandParaphenylenediamine). There are tremendous structural transformations in the structures of the molecular systems. Significant changes in the electronic properties were also marked after interactions between the diamines and CdSe quantum dots.


diamine; quantum dots; sensors

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