Nanocomposite materials containing Cadmium Telluride (CdTe) nanocrystals and [Fe(H-trz)2(trz)]BF4 nanoparticles were synthesized and investigated for the coupling between their photoluminescent and spin crossover properties. The bright CdTe emission around 550 nm was found to decrease reversibly when switching the ferrous complex from the high spin (HS) to the low spin (LS) state, which was att...

Novel citric acid based photoluminescent dyes and biodegradable polymers are synthesized via a facile "one-pot" reaction. A comprehensive understanding of the fluorescence mechanisms of the resulting citric acid-based fluorophores is reported. Two distinct types of fluorophores are identified: a thiozolopyridine family with high quantum yield, long lifetime, and exceptional photostability, and ...

Crystal engineering is discussed, along with its three key concepts: crystal packing; the design of solids; and physical and chemical properties.

Photoluminescent (PL) properties related to Te(4+) species in zinc borate glasses are examined. Broad emission was observed by the excitation of the PL excitation peak of Te(4+) present at the optical absorption edge. The emission intensity of Te(4+) in 5TeO(2)-50ZnO-45B(2)O(3) glass was thermally quenched in a temperature region over 100 K, suggesting that concentration quenching preferentiall...

Objective(s): Graphene as two-dimensional (2D) materials have attracted wide attention in different fields such as biomedical imaging. Ultra-small graphene nano-sheets (UGNSs) have been designated as low dimensional graphene sheets with lateral dimensions less than few nanometres (≤ 500 nm) in one, two or few layers. Several studies have proven that the process of acidic exfoliation and oxidati...

This Minireview presents and discusses recent developments in photoactive/photoluminescent N-heterocyclic carbene (NHC) transition metal complexes their viability as catalysts bond-forming photocatalysis. Specifically, we summarise key structural motifs adopted by photoactive NHC highlight some of photophysical properties. Representative examples applications photochemical reactions are also sh...

GaSxSe1−x solid solutions are layered semiconductors with a band gap between 2.0 and 2.6 eV. Their single crystals formed by planar packings of S/Se-Ga-Ga-S/Se type, weak polarization bonds them, which allows obtaining, splitting, plan-parallel lamellae atomically smooth surfaces. By heat treatment in normal or water vapor-enriched atmosphere, their plates covered layer consisting β–Ga2O3 nanow...