Luminescent solar concentrator comprising disubstituted benzoselenadiazole compounds

Abstract

Luminescent solar concentrator (LSC) comprising at least one disubstituted benzoselenadiazole compound having general formula (I): R1, R2, R3, R4 and R5, equal to or different from each other, represent a hydrogen atom; or they are selected from linear or branched C1-C20, preferably C1-C10, alkyl groups, cycloalkyl groups optionally substituted, aryl groups optionally substituted, linear or branched C1-C20, preferably C1-C10, alkoxyl groups, optionally substituted; or R1 and R2, can be possibly bound to each other so as to form, together with the carbon atoms to which they are bound, a cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, possibly containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; or R3 and R4, can be possibly bound to each other so as to form, together with the carbon atoms to which they are bound, a cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, possibly containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; or R4 and R5, can be possibly bound to each other so as to form, together with the carbon atoms to which they are bound, a cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, possibly containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium.(img file=DPA0000183055600000011.tif wi=970 he=408/).

Description

technical field [0001] The present invention relates to a luminescent concentrator (LSC) comprising at least one disubstituted benzoselenodiazole compound. [0002] The invention also relates to the use of at least one disubstituted benzoselenodiazole compound for the construction of luminescent concentrators (LSCs). [0003] The invention also relates to a photovoltaic device selected from, for example, a photovoltaic cell, a photovoltaic module, a solar cell, a solar module on a rigid substrate and a flexible substrate, the photovoltaic device comprising a luminescent solar concentrator (LSC), The luminescent solar concentrator (LSC) comprises at least one disubstituted benzoselenadiazole compound. Background technique [0004] It is known that single junction photovoltaic cells cannot efficiently utilize all solar radiation. In fact, single-junction photovoltaic cells have maximum efficiency only in a certain spectral range (including a part of visible radiation and a p...

AI Technical Summary

Problems solved by technology

[0016] Although 4,7-bis-(thiophen-2'-yl)-2,1,3-benzothiadiazole (DTB) absorbs most of the solar spectrum, however, in contrast to yellow radiation and Red radiation corresponds to

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