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2022

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vol. 20 / 

Issue 3

 



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Abhigyan Ganguly, Saradindu Panda, and Siddhartha Sankar Nath
Effect of Polymer Concentration on Size and Optical Properties of PbS Quantum Dots Embedded in PVA
0769–0776 (2022)

PACS numbers: 68.37.Og, 68.65.Hb, 78.55.-m, 78.67.Hc, 81.07.Ta, 81.16.Be, 82.35.Np

The properties of materials drastically change when matter performs a transition from 1D, 2D, 3D to 0D. The quantum dots (QDs) of lead sulphide (PbS) embedded into polyvinyl alcohol (PVA) are synthesized via one-pot synthesis chemical method. Different concentrations of organic matrix are taken, and the quantum dot size and optical properties are studied for each case. The specimen has been analysed by UV–Vis absorption spectroscopy, x-ray diffraction study, high-resolution transmission electron microscopy, and fluorescence spectroscopy. The effects of increasing the PVA capping concentration on the structural and optical properties are reported.

Key words: PbS, quantum dots, polyvinyl alcohol, one-pot synthesis, nanotechnology.

https://doi.org/10.15407/nnn.20.03.769

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