Search Results - "Dwaraka Viswanath, C.S."

Thermal and optical properties of Nd3+ ions in K–Ca–Al fluorophosphate glasses by Linganna, K., Viswanath, C.S. Dwaraka, Narro-Garcia, R., Ju, S., Han, W.-T., Jayasankar, C.K., Venkatramu, V.

“…Fluorophosphate glasses of composition (P2O5–K2O–Al2O3–CaO–CaF2)-doped with various Nd2O3 concentrations were prepared by a melt quenching technique and their…”
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Optical and NIR luminescence spectral studies: Nd3+-doped borosilicate glasses by Deepa, M., Doddoji, Ramachari, Viswanath, C.S. Dwaraka, Chandrasekhar, A.V.

“…Nd3+-doped borosilicate glasses with molar composition 20B2O3+ (45-x) SiO2 +20K2CO3+5Na2CO3+10LiF + xNd2O3 were prepared by conventional melt-quenching…”
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The effect of 1.25 MeV γ rays on Sm3+ doped lead fluoroborate glasses for reddish orange laser and radiation shielding applications by Wagh, Akshatha, Hegde, Vinod, Dwaraka Viswanath, C.S., Lakshminarayana, G., Raviprakash, Y., Kamath, Sudha D.

“…This research paper accentuates on the reddish orange light generation from Sm3+ ions doped lead fluoroborate glasses and the changes in the structural,…”
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Near-infrared and upconversion luminescence of Tm3+ and Tm3+/Yb3+-doped oxyfluorosilicate glasses by Dwaraka Viswanath, C.S., Babu, P., Martín, I.R., Venkatramu, V., Lavín, V., Jayasankar, C.K.

“…Oxyfluorosilicate glasses-doped with different concentrations of Tm3+ and Tm3+/Yb3+ ions have been synthesized and characterized their absorption,…”
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Photoluminescence and thermally stimulated luminescence properties of Pr3+-doped zinc sodium bismuth borate glasses by Hegde, Vinod, Viswanath, C.S. Dwaraka, Chauhan, Naveen, Mahato, K.K., Kamath, Sudha D.

“…Present study reports the effects of varying concentrations of Pr3+ ions on the optical properties of 10ZnO-5Na2CO3-10Bi2O3-75-xB2O3-xPr6O11 (x = 0.1–1 mol%)…”
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Photoluminescence, γ-irradiation and X-ray induced luminescence studies of Sm3+-doped oxyfluorosilicate glasses and glass-ceramics by Dwaraka Viswanath, C.S., Jayasankar, C.K.

“…Sm3+-doped oxyfluorosilicate glasses were fabricated through traditional melt quenching technique. After the heat treatment of the prepared glass, transparent…”
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Luminescence and energy transfer in Dy3+/Tb3+ co-doped transparent oxyfluorosilicate glass-ceramics for green emitting applications by Dharmaiah, Peyala, Viswanath, C.S. Dwaraka, Basavapoornima, Ch, Krishnaiah, Kummara Venkata, Jayasankar, Chalicheemalapalli Kulala, Hong, Soon-Jik

“…[Display omitted] ⿢We produced SrF2 nanocrystals using melt-quenching and heat treatment processes.⿢Energy transfer between the Dy3+ and Tb3+ ions have been…”
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Photoemission and thermoluminescence characteristics of Dy3+-doped zinc sodium bismuth borate glasses by Hegde, Vinod, Chauhan, Naveen, Viswanath, C.S. Dwaraka, Kumar, Vinayak, Mahato, K.K., Kamath, Sudha D.

“…The present study reports preparation and characterization of Dy3+-doped PbO free alkali-heavy-metal-borate glasses for luminescent applications. The amorphous…”
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Effects of high dose gamma irradiation on the optical properties of Eu3+ doped zinc sodium bismuth borate glasses for red LEDs by Hegde, Vinod, Chauhan, Naveen, Kumar, Vinayak, Viswanath, C.S. Dwaraka, Mahato, K.K., Kamath, Sudha D.

“…Interaction of 10ZnO-5Na2O-10Bi2O3–74.3B2O3-0.7Eu2O3 glasses exposed to high dose gamma rays were investigated using XRD, FTIR, absorption, photoluminescence…”
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Structural and NIR to visible upconversion properties of Er3+-doped LaPO4 phosphors by Kesavulu, C.R., Basavapoornima, Ch, Dwaraka Viswanath, C.S., Jayasankar, C.K.

“…Various concentrations of Er3+-doped LaPO4 powder phosphors have been synthesized by the conventional solid state reaction method and are characterized by…”
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Luminescence properties of europium doped oxyfluorosilicate glasses for visible light devices by Dwaraka Viswanath, C.S., Venkata Krishnaiah, K., Jayasankar, C.K.

“…Europium (Eu3+)-doped oxyfluorosiliacte (SALfSfEu: SiO2 + Al2O3 + LiF + SrF2 + Eu2O3) glasses have been fabricated by usual melt-quenching technique. These…”
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Enhanced visible emissions of Pr3+-doped oxyfluoride transparent glass-ceramics containing SrF2 nanocrystals by Kesavulu, C.R., Viswanath, C.S. Dwaraka, Karki, Sujita, Aryal, Pabitra, Kim, H.J., Jayasankar, C.K.

“…The Pr3+-doped oxyfluoride transparent glass and glass-ceramic (GC) with the composition of 41SiO2 + 10Al2O3 + 25.5LiF + 23SrF2 + 0.5Pr2O3 were prepared and…”
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Optical and radiative properties of Sm3+ions activated alkali-bismuth-germanate glasses by Prakash, M. Ravi, Neelima, G., Kummara, Venkata Krishnaiah, Ravi, N., Kiran, N., Viswanath, C.S. Dwaraka, Rao, T. Subba, Venkatramu, V.

“…Trivalent samarium (Sm3+)-doped alkali-bismuth-germanate glasses of a composition (40-x) GeO2 + 20 Bi2O3 + 20 Na2O + 10 BaO + 10 Gd2O3 + x Sm2O3 (x = 0.05,…”
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Red light emission from europium doped zinc sodium bismuth borate glasses by Hegde, Vinod, Viswanath, C.S. Dwaraka, Upadhyaya, Vyasa, Mahato, K.K., Kamath, Sudha D.

“…Zinc sodium bismuth borate (ZNBB) glasses doped with different concentrations of europium were prepared by conventional melt quenching method and characterized…”
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Structure, morphology and optical characterization of Dy3+-doped BaYF5 nanocrystals for warm white light emitting devices by Haritha, P., Martín, I.R., Dwaraka Viswanath, C.S., Vijaya, N., Venkata Krishnaiah, K., Jayasankar, C.K., Haranath, D., Lavín, V., Venkatramu, V.

“…The barium yttrium fluoride BaYF5 nanocrystalline powders doped with different concentrations of Dy3+ ions have been synthesized via a hydrothermal method and…”
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Photoluminescence, nonlinear optical and gamma radiation shielding properties of high concentration of Eu2O3 doped heavy metal borate glasses by Hegde, Vinod, Kamath, Sudha D., Kebaili, Imen, Sayyed, M.I., Sathish, K.N., Viswanath, C.S. Dwaraka, Pramod, A.G., Ramesh, P., Keshavamurthy, K., Devarajulu, G., Jagannath, G.

“…In this study, highly Eu3+doped (up to 5 mol%) 10ZnO40Bi2O350B2O3 glasses were prepared by melt quench process. The excitation and emission results of the…”
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Photoluminescence of dysprosium doped antimony-magnesium-strontium-oxyfluoroborate glasses by Farooq, S., Reddy, Y. Munikrishna, Padmasuvarna, R., Kummara, Venkata Krishnaiah, Viswanath, C.S. Dwaraka, Mahamuda, Sk

“…Dysprosium (Dy3+)-doped antimony-magnesium-strontium-oxyfluoroborate (B2O3 MgF2 SrO Sb2O3 Dy2O3, BMFSrSbD), glasses were synthesized by traditional…”
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Nanocrystalline Sm3+-doped Lu3Ga5O12 garnets: An intense orange-reddish luminescent material for white light emitting devices by Haritha, P., Viswanath, C.S. Dwaraka, Linganna, K., Babu, P., Jayasankar, C.K., Lavín, V., Venkatramu, V.

“…Nanocrystalline lutetium gallium garnets Lu3Ga5O12 doped with various concentrations of Sm3+ ions have been prepared by a low-cost and environmentally benign…”
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Photoluminescence of terbium doped oxyfluoro-titania-phosphate glasses for green light devices by Neelima, G., Kummara, Venkata Krishnaiah, Viswanath, C.S. Dwaraka, Tyagarajan, K., Ravi, N., Prasad, T. Jayachandra

“…Terbium (Tb3+) doped oxyfluoro-titania-phosphate glasses of chemical composition (in mol%), (60 - x) P2O5 – 15 BaF2 – 20 CaF2 – 5 TiO2 – x Tb4O7, x = 0.05, 0.1…”
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Nanocrystalline Sm 3+ -doped Lu 3 Ga 5 O 12 garnets: An intense orange-reddish luminescent material for white light emitting devices by Haritha, P., Viswanath, C.S. Dwaraka, Linganna, K., Babu, P., Jayasankar, C.K., Lavín, V., Venkatramu, V.

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