Ion probing with Luminescent PbS quantum dots in PVA

Some features of luminescent properties of PbS suspensions, stabilized by high‐molecular polyvinylpyrrolidone

“…[1][2][3][4][5][6] The properties of PbS nanoparticles prepared by different methods and stabilized by different chemical compounds are the subject of intense investigations. [4][5][6][7][8][9][10][11][12][13][14][15][16][17] Colloidal chemical methods are widely used for the preparation of semiconductor QD. [18] The obtained liquid suspensions contain semiconductor nanoparticles stabilized by organic compounds.…”

“…Organic compounds and polymers present in reaction mixture play an important stabilizing role by providing the preparation of nanoscale particles and preventing their growth and aggregation. The examples of such organic compounds are oleyamine, [8] polyvinylacetate, [11] polyvinylpyrrolidone (PVP), [10,15] polyvinyl alcohol, [19] and others.…”

“…Optical and luminescent properties of PbS QDs suspensions in different solvents and prepared by different methods has been investigated in literature. [2,4,[8][9][10][11][12][13]15,17,19,22,23] The main physical mechanisms which determine these properties of PbS QDs suspensions are related to quantum confinement effect and the processes of energy transfer. Clearly, the role of these mechanisms depends on the size of PbS particles, their concentration, and the type of stabilizator and solvent.…”

Stabilization of PbS quantum dots by high molecular polyvinylpyrrolidone

“…[10][11][12][13][14][15][16] The chemical nature of stabilizing agent strongly affects the properties of QD suspensions prepared. [7][8][9][10][11][12][13][14][15][16] It was found [2][3][4] that main physical mechanisms that determine these properties of PbS QD suspensions are related to the quantum confinement effect and the processes of energy transfer.…”

“…Materials containing quantum dots (QD) lead sulfide (PbS) are perspective for many different applications in photonics, solar energy, and medicine and are the objects of intensive research . Spectral and luminescent properties of these materials strongly depend on QD sizes, chemical composition, and the structure of the material.…”