A review on molten salt synthesis of metal oxide nanomaterials: Status, opportunity, and challenge

SK Gupta, Y Mao - Progress in Materials Science, 2021 - Elsevier
Molten-salt synthesis (MSS) method becomes an excellent bottom-up synthesis technique of
nanomaterials with various chemical compositions and morphologies because of its …

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 …

Lanthanide spectroscopy in probing structure-property correlation in multi-site photoluminescent phosphors

SK Gupta, RM Kadam, PK Pujari - Coordination Chemistry Reviews, 2020 - Elsevier
Lanthanide luminescence gains significant attention during the last decade or so because of
its unique optical properties. In designing a phosphor material various parameter needs to …

Deciphering the Role of Charge Compensator in Optical Properties of SrWO4:Eu3+:A (A = Li+, Na+, K+): Spectroscopic Insight Using Photoluminescence, Positron …

SK Gupta, K Sudarshan, AK Yadav, R Gupta… - Inorganic …, 2018 - ACS Publications
Studies have been carried out to understand the specific role of the alkali charge
compensator on the luminescence properties of an alkali ion (Li+, Na+, and K+) codoped …

Role of various defects in the photoluminescence characteristics of nanocrystalline Nd 2 Zr 2 O 7: an investigation through spectroscopic and DFT calculations

SK Gupta, K Sudarshan, PS Ghosh… - Journal of Materials …, 2016 - pubs.rsc.org
For the first time, visible photoluminescence could be seen in the blue and green regions in
Nd2Zr2O7 nanocrystals synthesized by gel combustion at 800° C. The nanocrystalline …

Defect engineering in lanthanide doped luminescent materials

J Zhou, G Zheng, X Liu, G Dong, J Qiu - Coordination Chemistry Reviews, 2021 - Elsevier
Lanthanides doped luminescent materials (LLMs) have recently gained considerable
attention in the areas of bioimaging, sensing, display, and lasers, benefitting from the …

Unique surface fluorescence induced from the core–shell structure of gallium-based liquid metals prepared by thermal oxidation processing

L Duan, Y Zhang, J Zhao, J Zhang, Q Li… - … Applied Materials & …, 2022 - ACS Publications
Liquid metals (LMs) have emerged as promising functional materials that combine the
properties of both liquid and metal. These characteristics enabled them to find applications …

Eu 3+ local site analysis and emission characteristics of novel Nd 2 Zr 2 O 7: Eu phosphor: insight into the effect of europium concentration on its photoluminescence …

SK Gupta, C Reghukumar, RM Kadam - RSC advances, 2016 - pubs.rsc.org
A new zirconate-based pyrochlore-type red phosphor, Nd2Zr2O7: Eu3+, was synthesized
using the gel-combustion method. The un-doped sample showed visible emission due to the …

A review on defect engineered NIR persistent luminescence through transition metal ion (Cr, Mn, Fe and Ni) doping: Wider perspective covering synthesis …

RT Parayil, SK Gupta, M Mohapatra - Coordination Chemistry Reviews, 2025 - Elsevier
Persistent luminescence is an optical phenomenon where materials continue to emit light
after the cessation of the excitation source which leads to different applications in areas like …

Thermally Induced Disorder–Order Phase Transition of Gd2Hf2O7:Eu3+ Nanoparticles and Its Implication on Photo- and Radioluminescence

SK Gupta, M Abdou, PS Ghosh, JP Zuniga, Y Mao - ACS omega, 2019 - ACS Publications
Crystal structure has a strong influence on the luminescence properties of lanthanide-doped
materials. In this work, we have investigated the thermally induced structural transition in …