Luminous lanthanide diketonates: review on synthesis and optoelectronic characterizations

A Dalal, K Nehra, A Hooda, D Singh, P Kumar… - Inorganica Chimica …, 2023 - Elsevier
Lanthanide metal complexes with light-harvesting organic chromophoric moieties have
gained extensive interest in the past decade owing to their outstanding performance in a …

UV excitable GdSr2AlO5: Eu3+ red emitting nanophosphors: structure refinement, photoluminescence, Judd-Ofelt analysis and thermal stability for w-LEDs

P Kumar, D Singh, I Gupta - Journal of Alloys and Compounds, 2023 - Elsevier
Abstract Combustion derived Gd 1− x Sr 2 AlO 5: x mol% Eu 3+(x= 1–5 mol%)
nanophosphors have tetragonal structure with space-symmetry of I4/mcm (space group no …

Realization of warm reddish-orange light emitter single phase Y4Al2O9: Sm3+ nanophosphors for indoor lighting applications

P Kumar, D Singh, I Gupta, S Singh, S Nehra… - Journal of …, 2023 - Elsevier
Abstract Sm 3+ activated Y 4 Al 2 O 9 nanophosphors have been prepared using urea aided
gel-combustion route. Through various structural and photophysical examinations, the …

Physical insights into crystal structure and optical response of green light emitting Tb3+ activated GdSr2AlO5 nanophosphors for optical displays

P Kumar, D Singh, I Gupta - Materials Research Bulletin, 2023 - Elsevier
Pure single phasic cool green light emitting Tb 3+ activated GdSr 2 AlO 5 nanophosphors
have been synthesized via effective gel-combustion method which comprise the precursor …

Gadolinium-based Sm 3+ activated GdSr 2 AlO 5 nanophosphor: synthesis, crystallographic and opto-electronic analysis for warm wLEDs

P Kumar, D Singh, I Gupta - RSC advances, 2023 - pubs.rsc.org
A material's luminosity characteristics, which in turn dictate its applicability, are critically
influenced by its structure. Therefore, it is essential for design and fabrication of optical …

Synthesis, crystallographic structure, down shifting luminescence of Er (III) activated GdSr2AlO5 nanophosphors: An efficient green emitter for solid state lighting

P Kumar, D Singh, I Gupta, H Kumar - Materials Science in Semiconductor …, 2023 - Elsevier
In order to investigate a potential phosphor material for solid state illumination applications,
we developed a series of green light emanating Er 3+ doped GdSr 2 AlO 5 (GSA) phosphors …

Structural and photophysical measurements of Er3+ doped Gd4Al2O9 nanophosphors for NUV excitable solid-state lighting applications

I Gupta, D Singh, S Singh, P Kumar, S Bhagwan… - Chemical Physics …, 2023 - Elsevier
Abstract Green emitting Gd 4-x Al 2 O 9: xEr 3+[x= 1 to 6 mol%] nanophosphors were
synthesized via urea assisted solution combustion (SC) synthetic pathway and …

A study of phase evolution, crystallographic and down-conversion luminescent behaviour of monoclinic Y4Al2O9: Dy3+ nanophosphors for white light applications

P Kumar, D Singh, I Gupta, S Singh, S Nehra, R Kumar - Optical Materials, 2023 - Elsevier
Abstract Undoped Y 4 Al 2 O 9 and Dy 3+ doped Y 4 Al 2 O 9 nanophosphors have been
synthesized through urea aided combustion approach. The monoclinic phase of undoped …

Structural and luminescent characteristics of orthorhombic GdAlO3: Sm3+ nanocrystalline materials for solid state lighting

P Kumar, D Singh, I Gupta, S Singh, V Kumar - Chemical Physics Letters, 2023 - Elsevier
In the current article, an eco-friendly, efficient and less energy consuming gel-combustion
process has been used to develop a series of perovskite based Gd 1-x AlO 3: xSm 3+(x …

Red-emitting Eu3+ activated LaSr2AlO5 phosphor for wLEDs: Crystal structure, photoluminescence, thermal stability, Judd-Ofelt calculation and band-gap analyses

P Kumar, D Singh, H Kumar - Materials Research Bulletin, 2024 - Elsevier
Abstract Red-emitting La 1-x Sr 2 AlO 5: xEu 3+(x= 0.01–0.06) phosphors have been
synthesized via gel combustion (GC) approach and their structure and luminescent …