DSpace
 

KNUSTSpace >
Research Articles >
College of Science >

Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12942

Title: Lead ethyl dithiocarbamates: efficient single-source precursors to PbS nanocubes
Authors: Saah, S. A.
Boadi, N. O.
Adu-Poku, D.
Wilkins, C.
Keywords: lattice constant
strain
scanning electron microscopy
band gap
X-ray diffractometer
Issue Date: 2019
Publisher: Royal Society of Chemistry
Citation: Saah SA, Boadi NO, Adu-Poku D, Wilkins C. 2019 Lead ethyl dithiocarbamates: efficient single-source precursors to PbS nanocubes. R. Soc. open sci. 6: 190943. http://dx.doi.org/10.1098/rsos.190943
Abstract: Lead ethyl dithiocarbamates have been successfully used as singlesource precursors for the deposition of PbS using spin coating followed by annealing at moderate temperatures. The thin films were characterized using a powder X-ray diffractometer and were found to be face-centred cubic with the (200) plane being the most preferred orientation. Scanning electron microscopy images showed the formation of well-defined cubes. Optical band gaps of PbS thin films were estimated using Tauc plots as 0.72, 0.73 and 0.77 eV at annealing temperatures of 250, 300 and 400°C. These band gaps were all blue shifted from the bulk value of 0.41 eV. Energy-dispersive X-ray analysis was used to determine the composition of the thin films which showed an approximately 1 : 1 Pb to S ratio.
Description: An article published by e Royal Society of Chemistry and also available at https://doi.org/10.6084/m9.figshare.c. 4697393.
URI: http://hdl.handle.net/123456789/12942
Appears in Collections:College of Science

Files in This Item:

File Description SizeFormat
rsos.190943.pdf1.65 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback