Comparative optical thermometry analysis using NaSrPO:Er/Yb phosphors: evaluation of LIR and LIR methods for high-resolution temperature sensing.

Optical thermometry is a valuable non-contact technique for temperature measurement, especially in environments where traditional methods are impractical. Despite its advantages, enhancing the precision of optical thermometers remains a significant challenge. In this study, we explored the thermometric properties of NaSrPO phosphors co-doped with Er/Yb, synthesized a solid-state reaction method, for temperature sensing within the 200-440 K range under 980 nm excitation.

Preparation and properties of a novel alginate/carrageenan crosslinked coordination polymer and evaluation of the antibacterial, antioxidant and anticancer potential of its Co(ii), and Cr(iii) polymeric complexes.

Natural polysaccharides play a crucial role across diverse fields such as medicine, food, and cosmetics, for their various physiochemical and biological properties. In this study, we developed a new crosslinked biopolymer using sodium alginate (AG) and carrageenan (CAR) polysaccharides. Various metal complexes involving different metal salts such as CoCl·6HO and CrCl·6HO were synthesized using the crosslinked biopolymer formed above.

Investigation of the structural, magnetic, and electrical characteristics of the LaSrNaMnTiO.

This article reveals the crucial structural, magnetic, and electrical properties of LaSrNaMnTiO (LSNMTO) manganite, highlighting the significance of this material in the field of materials science. Gain a deeper understanding of the promising properties of LSNMTO and its potential for technological advancement by delving into this informative article. The X-ray diffraction data of the LSNMTO indicate that this ceramic solid solution crystallizes in the 3̄ rhombohedral structure.

Numerical analysis and device modelling of a lead-free SrPI/SrSbI double absorber solar cell for enhanced efficiency.

Halide perovskites are the most promising options for extremely efficient solar absorbers in the field of photovoltaic (PV) technology because of their remarkable optical qualities, increased efficiency, lightweight design, and affordability. This work examines the analysis of a dual-absorber solar device that uses SrSbI as the bottom absorber layer and SrPI as the top absorber layer of an inorganic perovskite through the SCAPS-1D platform. The device architecture includes ZnSe as the electron transport layer (ETL), while the active layer consists of SrPI and SrSbI with precise bandgap values.

Synthesis and characterization of new electrospun medical scaffold-based modified cellulose nanofiber and bioactive natural propolis for potential wound dressing applications.

Recently, the design of polymer nanofibers using the electrospinning process has attracted much interest. Particularly the use of natural polymers has promoted many advantages in their biomedical applications. However, the combination of multiple natural polymers remains a great challenge in terms of electrospun production and applied performance.

Engineering a sustainable cadmium sulfide/polyethyleneimine-functionalized biochar/chitosan composite for effective chromium adsorption: optimization, co-interfering anions, and mechanisms.

A novel eco-friendly adsorbent was fabricated by mixing mushroom-derived cadmium sulfide and polyethyleneimine-functionalized biochar that was fabricated from coffee waste with a chitosan biopolymer. The green-synthesized CdS/PEI-BC/CTS composite was analyzed using several characterization methods to identify its morphological, compositional, and structural characteristics. In addition, the adsorption property of the composite was investigated for hexavalent chromium as a model for anionic heavy metals.

Morphological, structural, optical and dielectric analysis of CsTiBr perovskite nanoparticles.

In the pursuit of lead-free perovskite materials suitable for harnessing solar energy, a recent discovery has emerged regarding CsTiBr. This compound has garnered attention as a prospective candidate, exhibiting favorable optical and electrical characteristics alongside exceptional resilience when subjected to environmental strains. This study details the successful synthesis of non-hazardous metal halide nanoparticles of CsTiBr the slow cooling method.

Interpretation of dielectric behavior and polaron hopping in lead-free antimony-based double perovskite.

Lately, double perovskite materials have become well-known in the commercialization area owing to their potential use in optoelectronic applications. Here, double perovskite CsAgSbCl single crystals (SCs) with cubic crystal structure and 3̄ space group were successfully synthesized the slow cooling technique. This paper investigates the dielectric relaxation and charge transfer mechanism within CsAgSbCl using electrochemical impedance spectroscopy (EIS) in the 273-393 K temperature range under light.

Correction: Surface modification of graphene with functionalized carbenes and their applications in the sensing of toxic gases: a DFT study.

[This corrects the article DOI: 10.1039/D3RA02557H.].

Surface modification of graphene with functionalized carbenes and their applications in the sensing of toxic gases: a DFT study.

Graphene and other 2D materials have gained significant attention in the development of gas sensors. In this study, we employed Density Functional Theory (DFT) to investigate the adsorption properties of diazomethanes (1a-1g) with various functional groups (R = OH (a), OMe (b), OEt (c), OPr (d), CF (e), Ph (f)) on pristine graphene. Furthermore, we explored the adsorption behavior of activated carbenes (2a-2g) generated from the decomposition of diazomethanes on graphene, as well as the functionalized graphene derivatives (3a-3g) resulting from [2 + 1] cycloaddition reactions between (2a-2g) and graphene.

Zinc(ii) triazole -arylsubstituted porphyrins for UV-visible chloride and bromide detection. Adsorption and catalytic degradation of malachite green dye.

Three new triazole -arylporphyrins (4a-c) were synthesized by the copper(i)-catalyzed azide alkyne cycloaddition (CuAAC) "click" reaction in high yield. The corresponding zinc(ii) coordination compounds (5a-c) have also been prepared. All 4a-c and 5a-c porphyrin species were fully characterized by elemental analysis, electrospray ionization and MALDI-TOF mass spectrometry, infrared spectroscopy, proton nuclear magnetic resonance, UV-visible, fluorescence and cyclic voltammetry.

Effect of the coordination of π-acceptor 4-cyanopyridine ligand on the structural and electronic properties of -tetra(-methoxy) and -tetra(-chlorophenyl) porphyrin cobalt(ii) coordination compounds. Application in the catalytic degradation of methylene blue dye.

To examine the influence of both the important π-acceptor character of the 4-cyanopyridine ligand and the nature of the -substituted phenyls of -porphyrins on the electronic, electrochemical and structural properties of cobaltous metalloporphyrins, we prepared and fully characterized two coordination compounds: the (4-cyanopyridine)[-tetra(-methoxyphenyl)porphyrinato]cobalt(ii) and the (4-cyanopyridine)[-tetra(-chlorophenyl)porphyrinato]cobalt(ii) with the [Co(TMPP)(4-CNpy)] and [Co(TClPP)(4-CNpy)] formulas (complexes 1-2). The solution structures of compounds 1-2 were confirmed by H NMR spectroscopy and mass spectrometry methods. They were further characterized by cyclic voltammetry and photoluminescence studies.