Abstract
The compositions containing 55 and 60% of silica have been formulated for preparation of glass filters having sharp cut-off at 475 and 575 nm. To achieve cut-off at these wavelengths, the glasses have been doped with CdS/CdSSe and melted at 1200–1300°C. The glass samples were transparent and pale yellow in colour due to presence of CdS/CdSSe tiny nano crystal (Q-dots). In situ growth of CdS/CdSSe nano crystals imparts the yellow/orange/red colour to these glasses. Optical study shows that as prepared glasses have optical cut-off in the range 350–370 nm. The linear crystal growth of CdS/CdSSe in glasses exhibits red shift in optical cut-off. The optical filter having cut-off at 475 nm can be prepared by doping CdS and cut-off filter of wavelength 575 nm by CdSSe. The TEM results show that the CdS/CdSSe nano crystals (Q-dots) ranging from 2–5 nm are uniformly distributed into the glass matrix.
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References
Borrelli N F, Hall D W, Holland H J and Smith D W 1987 J. Appl. Phys. 61 5399
Ekimov A I and Onushchenko A A 1981 Pis’ ma Zh. Eksp. Teor. Fiz. 34 363
Ekimov A I et al 1993 J. Opt. Soc. Am. B10 100
Hache F, Richard D and Flytzanis C 1989 Appl. Phys. Lett. 55 1504
Lifshitz I M and Slyozov V V 1961 J. Phys. Chem. Solids 19 35
Murugan A V, Sonawane R S, Kale B B, Apte S K and Kulkarni A 2001 Mater. Chem. & Phys. 71 98
Norris D J, Sacra A, Murray C B and Bawendi M G 1994 Phys. Rev. Lett. 72 2612
Persans P D, Lurio L B, Pant J, Lian G D and Hayes T M 2001 Phys. Rev. B63 5320
Potter Jr B G and Simmons J H 1988 Phys. Rev. B37 10838
Santhi S and Trojanek F 2005 Physica E27 38
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Sonawane, R.S., Naik, S.D., Apte, S.K. et al. CdS/CdSSe quantum dots in glass matrix. Bull Mater Sci 31, 495–499 (2008). https://doi.org/10.1007/s12034-008-0077-2
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DOI: https://doi.org/10.1007/s12034-008-0077-2