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Chandramohan, S.
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Publications (7/7 displayed)
- 2024Parafilm Enabled Rapid and Scalable Delamination/Integration of Graphene for High‐Performance Capacitive Touch Sensorcitations
- 2009High-energy heavy-ion induced physical and surface-chemical modifications in polycrystalline cadmium sulfide thin filmscitations
- 2008Influence of porous morphology on optical dispersion properties of template free mesoporous titanium dioxide (TiO2) filmscitations
- 2007Effect of 80 MeV oxygen ion beam irradiation on the properties of CdTe thin filmscitations
- 2007Swift heavy ion beam irradiation induced modifications in structural, morphological and optical properties of CdS thin filmscitations
- 2006Structural properties of CdTe thin films on different substrates
- 2006Structural and photoluminescence properties of swift heavy ion irradiated CdS thin filmscitations
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article
Structural and photoluminescence properties of swift heavy ion irradiated CdS thin films
Abstract
<p>This paper reports the results on structural and photoluminescence (PL) properties of thermally evaporated CdS thin films subjected to 100 MeV Ag<sup>+7</sup> ion irradiation. The structure of the pristine and irradiated films was found to be polycrystalline with preferred orientation along the (0 0 2) diffraction line of the CdS hexagonal phase. The films retain their crystallinity upon irradiation indicating structural stability against irradiation. Formation of Cd clusters due to loss in sulfur atoms during irradiation was identified. However, the structural parameters such as grain size, strain and dislocation density have shown significant changes in their values as a result of irradiation. An increase in the grain size from 19.6 nm for pristine to a maximum of 63.1 nm for the irradiated films was estimated. The irradiation caused relaxation in the c-lattice parameter and shrinkage in the full-width at half-maximum (FWHM). The PL spectrum was dominated by red emission band due to loss of sulfur atoms.</p>