![]() ![]() The easy yet highly phase selective green synthesis of the materials promises large scale industrial application in environmentally benign energy efficient lighting. The hexagonal nanomaterial shows a substantial quantum cutting efficiency (154%) whilst in the cubic material, the effect is negligible (107%). To the best of our knowledge, this kind of spontaneous phase transition is not yet reported. In the case of methylimidazolium bromides with longer pendant alkyl chains such as butyl (C4), octyl (C8) or decyl (C10), extremely small nanoparticles of the cubic polymorph form, which then convert even at room temperature (RT) to the thermodynamically favored hexagonal modification. Eu-Doped BaF 2 Nanoparticles for Bioimaging Applications. When using Br, hexagonal NaGdF4 nanoparticles are obtained. Rahul Kumar Sharma, Yogendra Nath Chouryal, Shubham Nema, Sandeep Nigam, Siba Prasad Bera, Yogesh Bhargava, Pushpal Ghosh, Green EmittingCe3+/ Tb3+Doped BaF2 Nanocrystals and Their Impact on Skeletal Muscle of Developing Zebrafish Larvae, ChemistrySelect, 10.1002/slct.202001268, 5, 29, (9105-9110), (2020). Rahul Kumar Sharma, Sandeep Nigam, Yogendra Nath Chouryal, Shubham Nema, Siba Prasad Bera, Yogesh Bhargava, Pushpal Ghosh. Pushpal Ghosh Assistant Professor, Department of Chemistry, Dr. Selective tuning of the shape, morphology and, most importantly, the crystal phase of the host lattice is achieved by changing the alkyl side length, the H-bonding capabilities and the concentration of 1-alkyl-3-methylimidazolium bromide ILs, Br. It reveals that the core-shell structure shows better upconversion emission efficiency.Oxygen-free Eu(3+)-doped NaGdF4 nanocrystals with high quantum cutting efficiency are accessible at low temperatures (room temperature to 80 ☌) using task-specific ionic liquids (ILs) as structure directing agents and only water as solvent. Paul Campbell, Alexander-von-Humboldt Fellow, Ruhr-Universität Bochum, Germany 2012-2014) Dr. Understanding the influence of nanoenvironment on luminescence of rare-earth ions. Harisingh Gour University (A Central University), Sagar, India Sagar, Madhya Pradesh, India 172 followers 169 connections Join to. The effective decay time calculated are 230 and 110 μ s for core-shell and doped nanorods, respectively, indicating the removal of surface defects due to surface coating. Pushpal Ghosh, Alexander-von-Humboldt Fellow, Ruhr-Universität Bochum, Germany (2011-2013) Dr. Pushpal Ghosh Assistant Professor at Department of Chemistry, Dr. Bright blue (475 nm) and red (650 nm) upconversion emissions associated to G 1 4 → H 3 6 and F 3 2 → H 3 6 transitions were observed and a significant higher in upconversion emission intensity is observed in core-shell nanorods. Pushpal Ghosh, Arik Kar and Amitava Patra. Structural Changes and Spectroscopic Properties of Ce3+-Ion-Doped Sodium Yttrium Fluoride Nanocrystals: Influences of Sonication and Temperature. Analysis suggests that the lattice strain plays an important role on the upconversion emission. Pushpal Ghosh, Arik Kar and Amitava Patra. Tensile strain is observed for LaPO 4 : Yb – Tm doped material but compressive strain is obtained for LaPO 4 : Yb / Tm core-shell material. Join Facebook to connect with Pushpal Ghosh and others you may know. Managing stock levels and making key decisions about stock control. Pushpal Ghosh,a Suparna Sadhu a and Amitava Patra a Author affiliations Abstract The solemulsiongel method is used for the preparation of about 57 nm size Eu 2 O 3 doped and coated Y 2 SiO 5 nanoparticles at 1300 ☌. ![]() Ensuring to earn maximum revenue for the store & Zone to meet company's targets and policies. ![]() The morphologies, structure, formation mechanism, and upconversion emission properties of these nanocrystals are investigated in detail. Rahul Kumar Sharma, Sandeep Nigam, Yogendra Nath Chouryal, Shubham Nema, Siba Prasad Bera, Yogesh Bhargava, Pushpal Ghosh. View the profiles of people named Pushpal Ghosh. Managing team, Mentoring the new team members regarding product & process knowledge. A solution based hydrothermal method is used for the preparation of LaPO 4 : Yb – Tm doped and LaPO 4 : Yb / Tm core-shell upconverted nanorods. ![]()
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