Luminescent graphene quantum dots (GQDs) are encapsulated and stabilized in Zeolitic Imidazolate Framework (ZIF-8) nanocrystals. The GQDs are well confined due to the adsorption on the growing face of the ZIF-8 nanocrystals and have a profound effect on the shape of the nanocrystals from rhombic dodecahedron to spherical. Stabilizing GQDs inside the ZIF-8 nanocrystals results in tailoring of th...

Solvent-dependent luminescence of Eu(III) complexes composed of oxo-linked bidentate phosphine oxide ligands, 4,5-bis(diphenylphosphoryl)-9,9-dimethylxanthene (xantpo), 4,5-bis(di-tert-butylphosphoryl)-9,9-dimethylxanthene (tBu-xantpo) and low-vibrational frequency hexafluoroacetylacetonato (hfa) ligands is reported. The Eu(III) complexes, Eu(hfa)2(xantpo)2 and Eu(hfa)3(tBu-xantpo), exhibit eig...

This paper deals with the use of Whispering Gallery Modes to measure six components an homogeneous strain tensor within a sphere undergoing uniform field. The device is silica in which WGMs resonate, describing circles positioned on sphere’s surface planes perpendicular normals dodecahedron. direct model relating resonant wavelength variation established for one circle and then linearised accor...