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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.46 [2008] >
IJPAP Vol.46(04) [April 2008] >
| Title: | Structural characterization of nanocrystalline PbS thin films synthesized by CBD method |
| Authors: | Choudhury, N
Sarma, B K |
| Keywords: | Nanocrystalline
Chemical bath deposit
XRD
SEM
Thin film
Chemical bath deposition |
| Issue Date: | Apr-2008 |
| Publisher: | CSIR |
| Abstract: | Nanocrystalline PbS thin films have been deposited on glass substrates by Chemical Bath Deposition (CBD) technique using polyvinyl alcohol (PVA) in the preparation of matrix solution. Four matrix solutions with four different molarities (0.25 to 1.00) of lead acetate are used to deposit the films. The X-ray diffractograms of the samples show preferred orientation along (111) and (200) planes. The crystallite sizes of the films are found to vary from 2.0 to 4.4 nm. The crystallites are found to be under strain which varies between 1.33 × 10⁻¹ and 0.32 × 10⁻¹. The bandgaps of the nanocrystalline PbS are determined from UV spectrograph and are found to be with in the range 1.9-2.6 eV. The morphological properties of the films are determined by Scanning Electron Microscopy (SEM). |
| Page(s): | 261-265 |
| ISSN: | 0019-5596 |
| Source: | IJPAP Vol.46(04) [April 2008]
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