Optical Characterization of Zinc Modified Bismuth Silicate Glasses
The optical characterization of glass samples in the system 40SiO2 · xZnO · (60-x)Bi2O3 with x=0, 5, 10, 15, 20, 25, 30, 35, and 40 prepared by conventional melt-quench technique has been carried out in the light of Hydrogenic Excitonic Model (HEM). The absorption coefficient spectra show good agree...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Optics |
| Online Access: | http://dx.doi.org/10.1155/2015/476073 |
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| author | Rajesh Parmar J. Hooda R. S. Kundu R. Punia N. Kishore |
| author_facet | Rajesh Parmar J. Hooda R. S. Kundu R. Punia N. Kishore |
| author_sort | Rajesh Parmar |
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| description | The optical characterization of glass samples in the system 40SiO2 · xZnO · (60-x)Bi2O3 with x=0, 5, 10, 15, 20, 25, 30, 35, and 40 prepared by conventional melt-quench technique has been carried out in the light of Hydrogenic Excitonic Model (HEM). The absorption coefficient spectra show good agreement with theoretical HEM for the present glass system and the values of different parameters like Eg, R, Γ1, Γc, and Co have been estimated from fitting of this model. The values of energy band gap estimated from fitting of HEM with experimental data are in good agreement with those obtained from Tauc’s plot for direct transitions. The band gap energy is found to increase with increase of ZnO content. The decrease in values of Urbach energy with increase in ZnO content indicates a decrease in defect concentration in the glass matrix on addition of ZnO content. Optical constants n and k obey k-k consistency and the dielectric response of the studied glass system is similar to that obtained for Classical Electron Theory of Dielectric Materials. The calculated values of the metallization criterion (M) show that the synthesized glasses may be good candidates for new nonlinear optical materials. |
| format | Article |
| id | doaj-art-c4750b6e2b9945839a0b72b946251720 |
| institution | Kabale University |
| issn | 1687-9384 1687-9392 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
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| series | International Journal of Optics |
| spelling | doaj-art-c4750b6e2b9945839a0b72b9462517202025-02-03T05:48:26ZengWileyInternational Journal of Optics1687-93841687-93922015-01-01201510.1155/2015/476073476073Optical Characterization of Zinc Modified Bismuth Silicate GlassesRajesh Parmar0J. Hooda1R. S. Kundu2R. Punia3N. Kishore4Department of Physics, Maharshi Dayanand University, Rohtak 124001, IndiaDepartment of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125001, IndiaDepartment of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125001, IndiaDepartment of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar 125001, IndiaDepartment of Physics, Central University of Haryana, Mahendergarh 123029, IndiaThe optical characterization of glass samples in the system 40SiO2 · xZnO · (60-x)Bi2O3 with x=0, 5, 10, 15, 20, 25, 30, 35, and 40 prepared by conventional melt-quench technique has been carried out in the light of Hydrogenic Excitonic Model (HEM). The absorption coefficient spectra show good agreement with theoretical HEM for the present glass system and the values of different parameters like Eg, R, Γ1, Γc, and Co have been estimated from fitting of this model. The values of energy band gap estimated from fitting of HEM with experimental data are in good agreement with those obtained from Tauc’s plot for direct transitions. The band gap energy is found to increase with increase of ZnO content. The decrease in values of Urbach energy with increase in ZnO content indicates a decrease in defect concentration in the glass matrix on addition of ZnO content. Optical constants n and k obey k-k consistency and the dielectric response of the studied glass system is similar to that obtained for Classical Electron Theory of Dielectric Materials. The calculated values of the metallization criterion (M) show that the synthesized glasses may be good candidates for new nonlinear optical materials.http://dx.doi.org/10.1155/2015/476073 |
| spellingShingle | Rajesh Parmar J. Hooda R. S. Kundu R. Punia N. Kishore Optical Characterization of Zinc Modified Bismuth Silicate Glasses International Journal of Optics |
| title | Optical Characterization of Zinc Modified Bismuth Silicate Glasses |
| title_full | Optical Characterization of Zinc Modified Bismuth Silicate Glasses |
| title_fullStr | Optical Characterization of Zinc Modified Bismuth Silicate Glasses |
| title_full_unstemmed | Optical Characterization of Zinc Modified Bismuth Silicate Glasses |
| title_short | Optical Characterization of Zinc Modified Bismuth Silicate Glasses |
| title_sort | optical characterization of zinc modified bismuth silicate glasses |
| url | http://dx.doi.org/10.1155/2015/476073 |
| work_keys_str_mv | AT rajeshparmar opticalcharacterizationofzincmodifiedbismuthsilicateglasses AT jhooda opticalcharacterizationofzincmodifiedbismuthsilicateglasses AT rskundu opticalcharacterizationofzincmodifiedbismuthsilicateglasses AT rpunia opticalcharacterizationofzincmodifiedbismuthsilicateglasses AT nkishore opticalcharacterizationofzincmodifiedbismuthsilicateglasses |