@Article{CL.2025.2211.971,
AUTHOR = {R. Yoga Indra Eniya, K. Vijayakumar, B. Vigneashwari},
TITLE = {Nanostructured Self-Organization of Lead Sulphide Quantum Dots by Electrophoretic Deposition (EPD) Technique},
JOURNAL = {Chalcogenide Letters},
VOLUME = {22},
YEAR = {2025},
NUMBER = {11},
PAGES = {971--985},
URL = {http://www.techscience.com/CL/v22n11/64821},
ISSN = {1584-8663},
ABSTRACT = {Nanocrystals (~16 nm) of semiconducting lead sulphide (PbS) were synthesized using the coprecipitation
 method, which was characterized for phase and compositional purity. These ultrafine particles 
of PbS exhibited quantum confinement characteristics, which were revealed by blue-shifting in optical 
absorption using UV-DRS analysis. These QDs of PbS were driven under the influence of the applied electric 
field using monodispersed colloidal suspension on the Indium-Tin-Oxide (ITO) substrate using the 
electrophoretic deposition technique (EPD). The formation of self-organized arrays of PbS quantum dots 
(QDs) and their stacked assemblies was achieved through EPD. Interestingly, neither complexing agents nor 
templates were used for depositing PbS QDs. Also, the as-deposited film was not subjected to any post-heat 
treatment. EPD of PbS QDs emerges asa highly portable, cost-effective, short-duration, and pollution-free 
technique compared to all other known deposition methods. The crystallinity, size, morphology, and 
composition of PbS powder and film were characterized using PXRD, GIXRD, FESEM, SEM, and EDAX. 
The effect of controlling parameters such as distance between the electrodes, duration of deposition, and 
applied voltage was fixed as constant, and the obtained results were reported.},
DOI = {10.15251/CL.2025.2211.971}
}