Self-assembly of nanostructured PbS for solar photovoltaic applications

In the present communication, the self-assembly of nanocrystalline PbS at the liquid–liquid interface is reported. The PbS nanocrystals were, subsequently, transformed in the form of thin films by dip coating. The resultant Q-PbS films were characterized by SEM–EDAX, TEM–SAED, XRD, XPS and UV–vis Sp...

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Bibliographic Details
Published in:Materials chemistry and physics 2005-06, Vol.91 (2), p.447-453
Main Authors: Hawaldar, R.R., Kanade, K.G., Patil, K.R., Sathaye, S.D., Mulik, U.P., Amalnerkar, D.P.
Format: Article
Language:English
Subjects:
Liquid–liquid interface
Nanopyramid
Nanostructures
PbS
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Summary:In the present communication, the self-assembly of nanocrystalline PbS at the liquid–liquid interface is reported. The PbS nanocrystals were, subsequently, transformed in the form of thin films by dip coating. The resultant Q-PbS films were characterized by SEM–EDAX, TEM–SAED, XRD, XPS and UV–vis Spectroscopy. Pyramidal features at the nanometer scale, preferred orientation along (2 2 0) and (4 0 0) planes of cubic structure and a sharp excitonic peak at 656 nm are the salient aspects of this work. The band-gap of the order of 1.8 eV (associated with the excitonic feature) is ideally suited for solar photovoltaic applications.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2004.12.007