Related Experiment Video
Updated: Feb 14, 2026
08:36
Triplet Fusion Upconversion Nanocapsule Synthesis
Published on: September 7, 2022
2.9K
RbSrSc2(PO4)3:Pr3+: A Langbeinite-Type Structure with Blue-to-UVC Upconversion Properties
Alexander Grippa1, Nadiia Rebrova2, Pedro Berastegui3
1Institute for Scintillation Materials, National Academy of Sciences of Ukraine, Nauki Avenue, 60, Kharkiv 61001, Ukraine.
Inorganic Chemistry
|February 12, 2026
Summary
A novel langbeinite-type phosphate, RbSrSc2(PO4)3, doped with Pr3+, exhibits efficient ultraviolet upconversion. This material shows promise for germicidal and photonic cancer therapy applications.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Photophysics
Background:
- Langbeinite-type structures are known for their unique optical properties.
- Pr3+-doped materials are investigated for luminescence and upconversion applications.
- Photonic therapies require efficient light-emitting materials.
Purpose of the Study:
- Synthesize and characterize a new langbeinite-type phosphate material.
- Investigate the photoluminescence and upconversion properties of Pr3+-doped RbSrSc2(PO4)3.
- Evaluate the potential of this material for therapeutic applications.
Main Methods:
- Solid-state synthesis route.
- X-ray powder diffraction and Rietveld refinement for structural analysis.
- Photoluminescence spectroscopy, including time-resolved and power-dependent measurements.
- Scanning Electron Microscopy (SEM), Fourier-Transform Infrared (FT-IR) spectroscopy, and thermal analysis.
Main Results:
- A new langbeinite-type cubic structure (space group P213) was confirmed for RbSrSc2(PO4)3.
- Pr3+-doped RbSrSc2(PO4)3 exhibits visible Stokes emission and intense UV anti-Stokes upconversion.
- Upconversion intensity surpasses that of YPO4:Pr3+, with excited-state absorption identified as the mechanism.
Conclusions:
- RbSrSc2(PO4)3:Pr3+ is a promising material for photonic applications.
- The efficient UV upconversion highlights its potential for germicidal and cancer therapy.
- Langbeinite-type phosphates offer a viable platform for advanced optical materials.
Related Concept Videos
01:21Structural Properties and Dimensions of Lumber
413
Wood's structural properties derive from fibers aligned along the tree's length, contributing significantly to its mechanical strength. Wood exhibits up to twenty times greater tensile strength along these fibers compared to across them, and generally shows better performance under compression than tension. The length of fibers varies, with hardwoods having fibers around one twenty-fifth inch long and softwoods ranging from one-eighth to one-third inch.
The strength characteristics of...
The strength characteristics of...
413
02:37Structure and Physical Properties of Alkynes
13.5K
Introduction:
In nature, compounds containing both carbon and hydrogen are known as "hydrocarbons". Aliphatic hydrocarbons are compounds whose molecules contain saturated single bonds (i.e., alkanes) or unsaturated double or triple bonds. Alkenes contain carbon–carbon double bonds and have a structural formula CnH2n. Unsaturated hydrocarbons containing carbon–carbon triple bonds are called "alkynes" and are structurally represented by the formula CnH2n-2.
The...
In nature, compounds containing both carbon and hydrogen are known as "hydrocarbons". Aliphatic hydrocarbons are compounds whose molecules contain saturated single bonds (i.e., alkanes) or unsaturated double or triple bonds. Alkenes contain carbon–carbon double bonds and have a structural formula CnH2n. Unsaturated hydrocarbons containing carbon–carbon triple bonds are called "alkynes" and are structurally represented by the formula CnH2n-2.
The...
13.5K
01:28Types of Non-structural Cracks in Concrete
519
Non-structural cracks are primarily of three types: plastic, early-age thermal, and drying shrinkage cracks. Plastic cracks are further classified into plastic shrinkage cracks and plastic settlement cracks.
Plastic shrinkage cracks typically form within hours after the concrete is poured. The concrete's surface dries faster than the bottom, creating tensile stress that the still-plastic concrete cannot withstand, leading to diagonal or randomly patterned cracks on the concrete surface.
Plastic shrinkage cracks typically form within hours after the concrete is poured. The concrete's surface dries faster than the bottom, creating tensile stress that the still-plastic concrete cannot withstand, leading to diagonal or randomly patterned cracks on the concrete surface.
519
02:57Physical and Chemical Properties of Matter
167.5K
The characteristics that enable us to distinguish one substance from another are called properties.
167.5K
01:20Accessory Structures of the Skin: Hair Growth and Types
2.5K
Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...
2.5K
02:34Structural Isomerism
21.8K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.8K