Luminescent solar concentrator comprising tetra-substituted benzoheterodiazole compounds

Abstract

A luminescent solar concentrator (LSC) comprising at least one tetra-substituted benzoheterodiazole compound having general formula (I): wherein: Rand R, equal to or different from each other, are selected from: C-C, preferably C-Caryl groups, optionally substituted; C-C, preferably C-C, heteroaryl groups, optionally substituted; Rand R, equal to or different from each other, are selected from: halogen atoms such as, for example, fluorine, chlorine, bromine, iodine, preferably fluorine; linear or branched C1-C30, preferably C-C, trihalogenated alkyl groups; C-C, preferably C-C, aryloxyl groups optionally substituted; linear or branched C-C, preferably C-C, alkoxyl groups optionally substituted; C-C, preferably C-C, heteroaryloxyl groups optionally substituted; Z represents a sulfur atom, an oxygen atom or a selenium atom; a NRgroup wherein Rrepresents a hydrogen atom, or it is selected from linear or branched C-C, preferably C-C, alkyl groups, optionally containing heteroatoms; a CRRgroup wherein Rand R, equal to or different from each other, represent a hydrogen atom, or they are selected from linear or branched C-C, preferably C-C, alkyl groups, optionally containing heteroatoms, linear or branched C-C, preferably C-C, alkoxyl groups, optionally substituted, C-C, preferably C-C, cycloalkyl groups, optionally substituted, or, Rand Rcan be optionally bound to each other to form, together with the other atoms to which they are bound, a cycle containing from 3 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally substituted with linear or branched C-C, preferably C-C, alkyl groups, said cycle optionally containing heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium.