Optical nanomaterials with focus on rare earth doped oxide: A Review

SK Gupta, K Sudarshan, RM Kadam - Materials Today Communications, 2021 - Elsevier
Optical nanomaterials (ONMs) have attracted significant attention of the global research
community owing to their several superior advantages. Some of the ONMs depict negligible …

A benign approach for tailoring the photometric properties and Judd-Ofelt analysis of LaAlO3: Sm3+ nanophosphors for thermal sensor and WLED applications

T Manohar, SC Prashantha, R Naik… - Sensors and Actuators B …, 2017 - Elsevier
Abstract Sm 3+ doped (1–9 mol%) Lanthanum aluminate (LaAlO 3) nanophosphor was
prepared by solution combustion synthesis and characterized by photoluminescence (PL) …

Tailoring oxygen vacancies in ThO2 for improved light emission and ORR electrocatalysis

D Das, R Gupta, SK Gupta, AK Yadav… - Materials Today …, 2023 - Elsevier
The role of defects in multifunctional materials and defect engineering are fascinating to
scientific community. To understand the role of oxygen vacancies in photoluminescence …

Origin of blue emission in ThO 2 nanorods: exploring it as a host for photoluminescence of Eu 3+, Tb 3+ and Dy 3+

SK Gupta, PS Ghosh, A Arya, V Natarajan - RSC Advances, 2014 - pubs.rsc.org
Nanorods of ThO2 were synthesized in a reverse micelle technique using cetyl trimethyl
ammonium bromide as a surfactant and characterized by X-ray diffraction and transmission …

Structural characterization and photoluminescence properties of sol–gel derived nanocrystalline BaMoO4: Dy3+

P Jena, SK Gupta, V Natarajan, M Sahu… - Journal of …, 2015 - Elsevier
Nanocrystalline BaMoO 4 samples doped with varying Dy 3+ content were prepared by
acrylamide assisted sol–gel combustion process. The prepared samples were characterized …

Preparation of dense ThO2-based ceramics by Sc doping and simple sintering method

S Qi, Z Zhang, F Guan, Z Lv, D Peng, H Wang… - Ceramics …, 2023 - Elsevier
Abstract The Th 1-x Sc x O 2-x/2 (0≤ x≤ 0.1) ceramic system with high density was
originally prepared via a co-precipitation route and simple sintering method. XRD analysis …

Probing Site Symmetry Around Eu3+ in Nanocrystalline ThO2 Using Time Resolved Emission Spectroscopy

SK Gupta, MK Bhide, SV Godbole… - Journal of the …, 2014 - Wiley Online Library
ThO 2: Eu 3+ nanoparticles were synthesized at 300° C by combustion route using urea as a
fuel and characterized by thermogravimetric/differential thermal analysis, X‐ray diffraction …

Europium Luminescence as a Structural Probe: Structure-Dependent Changes in Eu3+-Substituted Th(C2O4)2· xH2O ( x = 6, 2, and 0).

SK Gupta, B Rajeshwari, SN Achary… - … Journal of Inorganic …, 2015 - search.ebscohost.com
Three different phases of thorium (IV) oxalate hydrate [Th (C< sub> 2 O< sub> 4)< sub> 2·
xH< sub> 2 O] with different water contents, namely, the hexahydrate, dihydrate, and …

Sol–Gel Synthesis of High-Purity Actinide Oxide ThO2 and Its Solid Solutions with Technologically Important Tin and Zinc Ions

VK Tripathi, R Nagarajan - Inorganic Chemistry, 2016 - ACS Publications
The applicability of epoxide-based sol–gel synthesis for actinide oxide (thoria) starting from
air-stable salt, Th (NO3) 4, has been examined. The homogeneous gel formed from Th …

Color tunable luminescence in ThO 2: Er 3+, Yb 3+ nanocrystals: a promising new platform for upconversion

D Das, SK Gupta, RT Parayil, B Modak… - Physical Chemistry …, 2024 - pubs.rsc.org
Lanthanide-doped luminescent nanoparticles are an appealing system for many
applications in the area of biomedical, solar cell, thermometry, anti-counterfeiting, etc. due to …