Ramaiah, KS, Pilkington, RD, Hill, AE, Tomlinson, RD and Bhatnagar, AK 2001, 'Structural and optical investigations on CdS thin films grown by chemical bath technique' , Materials Chemistry and Physics, 68 (1-3) , pp. 22-30.
Full text not available from this repository. (Request a copy)Abstract
Cadmium sulphide (CdS) thin films have been prepared by using a chemical bath deposition (CBD) method. Structural analysis (XRD and TEM) revealed that the films showed hexagonal structure with lattice constants a=0.4015 nm and c=0.6545 nm. On annealing, the films exhibited secondary phase of beta -CdS (cubic) along with hexagonal phase, but density of dislocations decreased. The stacking faults have been observed in the crystalline arrangement by high resolution transmission electron microscopy (HRTEM). The direct band gaps of as-grown and annealed films were found to be 2.42 and 2.62 eV with sub band gap of 2.35 eV, respectively, which were confirmed by optical analysis. On annealing, the resistivity of the films decreased from 3 x 10(6) to 1 x 10(3) Omega cm. Multiple Cd and S defects were observed by employing photoluminescence (PL) method. The intensities of emission peaks for annealed films differed with that of as-grown films. As was discussed with giving reasons.
| Item Type: | Article |
|---|---|
| Themes: | Subjects / Themes > Q Science > QD Chemistry Subjects / Themes > Q Science > QC Physics Subjects outside of the University Themes |
| Schools: | Schools > School of Computing, Science and Engineering Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre |
| Journal or Publication Title: | Materials Chemistry and Physics |
| Publisher: | Elsevier |
| Refereed: | Yes |
| ISSN: | 02540584 |
| Depositing User: | H Kenna |
| Date Deposited: | 07 Sep 2007 08:54 |
| Last Modified: | 27 Aug 2021 22:00 |
| URI: | http://usir.salford.ac.uk/id/eprint/403 |
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