Nanocrystalline CdSe thin films of different morphologies in thermal evaporation process
Pal, U.; Zaldivar, M. Herrera; Sathyamoorthy, R.; Manjuladevi, V.; Sudhagar, P.; Mohan, S. Chandra; Senthilarasu, S.
M. Herrera Zaldivar
S. Chandra Mohan
Dr Senthilarasu Sundaram S.Sundaram@napier.ac.uk
Cadmium selenide nanocrystalline thin films of quasi-spherical morphology are prepared by evaporating CdSe nanopowders on glass substrates. Slightly oval shaped CdSe particles of about 165 nm average size (in 2-D) could be assembled over glass substrates by controlling the film thickness. Morphologies like assembly of particles, interconnected particles with mosaic-like structures and thin films of smooth surfaces could be prepared simply by controlling film thickness. A mechanism for such morphological variations is proposed. Observed variation of band gap energy in the films is explained in terms of quantum confinement effect and substrate-film interface strain.
Pal, U., Zaldivar, M. H., Sathyamoorthy, R., Manjuladevi, V., Sudhagar, P., Mohan, S. C., & Senthilarasu, S. (2008). Nanocrystalline CdSe thin films of different morphologies in thermal evaporation process. Journal of Nanoscience and Nanotechnology, 8(12), 6474-6480. https://doi.org/10.1166/jnn.2008.18410
|Journal Article Type||Article|
|Publication Date||Dec 1, 2008|
|Deposit Date||Mar 14, 2023|
|Publisher||American Scientific Publishers|
|Peer Reviewed||Peer Reviewed|
|Keywords||cdse thin films, morphology, nanocrystalline, optical properties|
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