Tag: luminescence

Poly(Pyridinium Salt)s Based on 2,7-Diamino-9,9-Dioctylfluorene Moieties: Synthesis, Lyotropic Liquid-crystalline and Light-emitting Properties

The phenylated poly(pyridinium salt)s are a kind of ionic main-chain chain polymer made through ring-transmutation polymerization of bispyrylium salts and diamines, as well as metathesis processes. Because they’re utilised to make electrochromic devices, fire-retardant materials, biosensors, and even nonlinear optical devices, they’re referred to as advanced functional materials. A...
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Supramolecular Luminescence from Oligofluorenol-Based Supramolecular Polymer Semiconductors: Experimental Investigation

Intermolecular forces cause supramolecular luminescence, which is caused by non-covalent exciton behaviours of active -segments in supramolecular entities or aggregates. Suzuki coupling as a supramolecular semiconductor was used to produce a -conjugated oligofluorenol with self-complementary double hydrogen bonds. Concentration-dependent nuclear magnetic resonance (NMR) and dynamic light scattering were used...
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Study on Nanophosphors with Partially Polymerized SiO4 Tetrahedra Produced by Evaporation of Ca2Y8(SiO4)6O2: Eu Polycrystals

Pulsed electron beam evaporation of micrometer-sized polycrystalline phosphors of the composition Ca2Y8(SiO4)6O2: Eu generated nanophosphors in the amorphous form for the first time. When particle size decreases from micro to nanodimensional, the Raman spectra is altered, and the prohibited band width of the samples rises. The features of spectrum...
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Charoite: Silicate Mineral with Luminescence Properties

Charoite luminescence measurements were carried out, with the two main emission bands centered around 380 and 600 nm. Heat pressure and, more importantly, the infusion of specific chemicals into the rock cause the transformation into new minerals such as charoite. There are minor differences in reaction between cathodoluminescence and...
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Unravelling the Effect of Tb on the Surface Defects in ZnO Nanoparticles

The electronics sector has set new objectives for using nanotechnology to provide better solutions. For the development of optoelectronic devices, nanoelectronics has concentrated on the structural, optical, magnetic, and photoluminescence properties of nanomaterials. In comparison to bulk molecules, these features are extremely important at the nanoscale. Semiconductor materials have...
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Solution Behavior and Optical Properties of Platinum Complexes Featuring “Pt(pq)(C≡CtBu)” Units Connected by N-donor Ligands

It presents the synthesis, spectroscopic (including X-ray for 2a and 4a) and optical properties of a sequence of binuclear complexes [{Pt(pq)(C ⁇ CtBu)}2{μ-(N-N)}] (1a-5a), ditopic dinitrogen connector ligands (N-N) and trinuclear ligands [{Pt(pq)(C ⁇ CtBu)}3(μ-L)] (6a) with a central core of 1,3,5-tris(pyridine-4ylethynyl)benzene. Particular attention in this chapter is devoted...
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