Search Results - "Balabhadra, Sangeetha"

Lanthanide‐Based Thermometers: At the Cutting‐Edge of Luminescence Thermometry by Brites, Carlos D. S., Balabhadra, Sangeetha, Carlos, Luís D.

“…Present technological demands in disparate areas, such as microfluidics and nanofluidics, microelectronics and nanoelectronics, photonics and biomedicine,…”
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Upconverting Nanoparticles Working As Primary Thermometers In Different Media by Balabhadra, Sangeetha, Debasu, Mengistie L, Brites, Carlos D. S, Ferreira, Rute A. S, Carlos, Luís D

“…In the past decade, noninvasive luminescent thermometry has become popular due to the limitations of traditional contact thermometers to operate at scales…”
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Upconversion luminescence in BaYF5, BaGdF5 and BaLuF5 nanocrystals doped with Yb3+/Ho3+, Yb3+/Er3+ or Yb3+/Tm3+ ions by Grzyb, Tomasz, Balabhadra, Sangeetha, Przybylska, Dominika, Węcławiak, Mariusz

“…Nanomaterials based on BaREF5 fluorides (where RE = Y, Gd and Lu), doped with lanthanide ions Yb3+/Ln3+ (Ln3+ = Er, Ho or Tm) were synthesized by microwave…”
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Boosting the sensitivity of Nd(3+)-based luminescent nanothermometers by Balabhadra, Sangeetha, Debasu, Mengistie L, Brites, Carlos D S, Nunes, Luís A O, Malta, Oscar L, Rocha, João, Bettinelli, Marco, Carlos, Luís D

“…Luminescence thermal sensing and deep-tissue imaging using nanomaterials operating within the first biological window (ca. 700-980 nm) are of great interest,…”
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Absorption spectra, defect site distribution and upconversion excitation spectra of CaF2/SrF2/BaF2:Yb3+:Er3+ nanoparticles by Balabhadra, Sangeetha, Reid, Michael F., Golovko, Vladimir, Wells, Jon-Paul R.

“…We report studies of the Yb3+ site distribution in Er3+ co-doped upconverting alkaline earth fluoride nanoparticles using high-resolution absorption…”
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Simulating excited-state absorption spectra in upconverting lanthanide doped nanoparticles: KY3F10:Er3 by Solanki, Pratik S., Balabhadra, Sangeetha, Reid, Michael F., Wells, Jon-Paul R.

“…High-resolution absorption and laser-excited fluorescence studies of KY3F10:Er3+ core-only nanoparticles are presented. A total of 49 crystal-field energy…”
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Corrigendum to “Lifetime thermometry in the third biological window using KMnF3:Yb/Er nanoparticles” [Opt. Laser Technol. 171 (2024) 110438] by Balabhadra, Sangeetha, Solanki, Pratik.S., Reid, Michael F., Wells, Jon-Paul R.

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Corrigendum to “Lifetime thermometry in the third biological window using KMnF3:Yb/Er nanoparticles” [Opt. Laser Technol. 171 (2024) 110438] by Balabhadra, Sangeetha, Solanki, Pratik. S., Reid, Michael F., Wells, Jon-Paul R.

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Lifetime thermometry in the third biological window using KMnF3:Yb/Er nanoparticles by Balabhadra, Sangeetha, Solanki, Pratik. S., Reid, Michael F., Wells, Jon-Paul R.

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Near-infrared absorption thermometry exploiting an anomalously large spectral line-shift for the Yb3+ cubic centre in CaF2:Yb3+/Er3+ nanoparticles by Balabhadra, Sangeetha, Wells, Jon-Paul R., Reid, Michael F.

“…•Yb3+ cubic centre absorption lines exhibit an exceptionally large temperature dependent blue-shift of 16.90 ± 0.02 cm−1 in Er3+ co-doped CaF2…”
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Influence of the synthesis method on preferential clustering of Yb3+ in CaF2:Yb3+/Er3+ upconverting nanoparticles by Balabhadra, Sangeetha, Reid, Michael F., Golovko, Vladimir, Wells, Jon-Paul R.

“…Yb3+/Er3+ co-doped CaF2 upconverting nanoparticles have been synthesized by three preparation methods. Their 12 K absorption measurements exhibit signatures of…”
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Excitation wavelength dependent photoluminescence and photochromic studies of Yb3+/Er3+ doped β−KYF4 and β−NaYF4 nanoparticles by Solanki, Pratik S., Balabhadra, Sangeetha, Browne, Lara D., Reid, Michael F., Davis, Nathaniel J.L.K., Wells, Jon-Paul R.

“…We report both resonant and off-resonant laser excitation of Er3+ upconversion fluorescence and colour tunability in Er3+/Yb3+ co-doped KYF4 and NaYF4…”
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A comparison of the Yb3+ absorption and upconversion excitation spectra for both the cubic and hexagonal phases of NaYF4:Yb3+/Er3+ nanoparticles by Balabhadra, Sangeetha, Reid, Michael F., Golovko, Vladimir, Wells, Jon-Paul R.

“…We report on studies of the Yb3+ ion absorption in Er3+ co-doped cubic and hexagonal phase NaYF4 upconverting nanoparticles using high-resolution absorption…”
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Synthesis and Organic Surface Modification of Luminescent, Lanthanide-Doped Core/Shell Nanomaterials (LnF3@SiO2@NH2@Organic Acid) for Potential Bioapplications: Spectroscopic, Structural, and in Vitro Cytotoxicity Evaluation by Runowski, Marcin, Ekner-Grzyb, Anna, Mrówczyńska, Lucyna, Balabhadra, Sangeetha, Grzyb, Tomasz, Paczesny, Jan, Zep, Anna, Lis, Stefan

“…A facile coprecipitation reaction between Ce3+, Gd3+, Tb3+, and F– ions, in the presence of glycerine as a capping agent, led to the formation of ultrafine,…”
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Radiation-to-heat conversion efficiency in SrF2:Yb3+/Er3+ upconverting nanoparticles by Balabhadra, Sangeetha, Debasu, Mengistie L., Brites, Carlos D.S., Ferreira, Rute A.S., Carlos, Luís D.

“…The photoexcitation of materials results in the production of thermal energy (heat) under laser excitation and is an evolving field of research, prompted by…”
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Upconversion luminescence in BaYF sub(5), BaGdF sub(5) and BaLuF sub(5) nanocrystals doped with Yb super(3+)/Ho super(3+), Yb super(3+)/Er super(3+) or Yb super(3+)/Tm super(3+) ions by Grzyb, Tomasz, Balabhadra, Sangeetha, Przybylska, Dominika, Weclawiak, Mariusz

“…Nanomaterials based on BaREF sub(5) fluorides (where RE = Y, Cd and Lu), doped with lanthanide ions Yb super(3+)/ Ln super(3+) (Ln super(3+) = Er, Ho or Tm)…”
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Upconversion Thermometry Using Yb3+/Er3+ Co-Doped KY3F10 Nanoparticles by Solanki, Pratik S, Balabhadra, Sangeetha, Reid, Michael F, Golovko, Vladimir B, Wells, Jon-Paul R

“…We report high-sensitivity luminescence thermometry using Yb3+/Er3+ co-doped KY3F10 core and core–shell upconverting nanoparticles. The highest thermal…”
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Upconverting nanoparticles working as primary thermometers in different media by Carlos, Luis D., Balabhadra, Sangeetha, Debasu, Mengistie, Brites, Carlos, Ferreira, Rute

“…Abstract only…”
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Upconversion Thermometry Using Yb 3+ /Er 3+ Co-Doped KY 3 F 10 Nanoparticles by Solanki, Pratik S., Balabhadra, Sangeetha, Reid, Michael F., Golovko, Vladimir B., Wells, Jon-Paul R.

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Ln3+-Doped Nanoparticles for Luminescence Thermometry by Balabhadra, Sangeetha

“…Temperature is a master variable that affects essentially most of the natural and engineered systems. The measurement of temperature is a virtually ubiquitous…”
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