Zobrazeno 11 - 20
of 86
pro vyhledávání: '"M. Gunaseelan"'
Autor:
M. Gunaseelan, A. Leema Maria Prakasam
Publikováno v:
Advances in Mathematics: Scientific Journal. 9:2773-2790
Publikováno v:
Journal of Sol-Gel Science and Technology. 96:550-563
A novel “water-in-oil” type reverse microemulsion assisted synthesis detail on the formation of mixed cubic and hexagonal (α + β) phase NaYF4:Yb,Er nanoparticles and their upconversion emission properties are presented. The effect of surfactant
Autor:
M. Gunaseelan, S. Arun Kumar, Sinju Thomas, Debashrita Sarkar, J. Senthilselvan, S. Yamini, Venkataramanan Mahalingam, Venkata N. K. B. Adusumalli, L. Anbharasi, J. Manonmani
Publikováno v:
Journal of Materials Science: Materials in Electronics. 30:20376-20392
SrF2 based upconversion nanoparticles (UCNPs) were synthesized by hydrothermal method using ethylenediaminetetraacetic acid (EDTA) as surfactant, by doping with single-lanthanide-activator Er ion and sensitizer-activator Yb3+−Er3+ ion-pair. The exc
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Autor:
L.N. Mishra, M. Gunaseelan
Publikováno v:
Scientific Publications of the State University of Novi Pazar Series A: Applied Mathematics, Informatics and mechanics. 11:117-123
Publikováno v:
Materials Research Bulletin. 107:366-378
This work presents the first time synthesis of photon upconverting cubic BaYF5:Yb3+,Er3+ nanoclusters by a novel reverse microemulsion method. Rietveld refinement analysis confirmed the cubic BaYF5 and BaYF5:Yb,Er. The spherical nanoclusters (∼35 n
Autor:
Basudev Roy, M. Gunaseelan, J. Senthilselvan, Amrendra Kumar, Sumeet Kumar, Rahul Vaippully, Dipanjan Chakraborty
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Upconverting nanoparticles typically absorb low frequency radiation and emit at higher frequencies relying upon multiphoton processes. One such type of particle is NaYF$_4$:Yb,Er, which absorbs at 975 nm while emitting in visible radiation. Such part
Autor:
S. Yamini, Swati Singh, Karen S. Martirosyan, J. Senthilselvan, G.C. Dannangoda, M. Gunaseelan, G.A. Kumar, Dhiraj K. Sardar, Sri Sivakumar, Agnishwar Girigoswami
Publikováno v:
Microchimica Acta. 187
The effect of novel silver nanowire encapsulated NaGdF4:Yb,Er hybrid nanocomposite on the upconversion emission and bioimaging properties has been investigated. The upconvension nanomaterials were synthesised by polyol method in the presence of ethyl
Publikováno v:
Nanophotonics VIII.
Rare-earth doped upconverting nanoparticles like NaYF4:Yb,Er absorb infra-red light and emit visible radiation. We use light at the absorption resonance, namely 975 nm, to optically trap the nanoparticles and subsequently study the effect on the trap