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 its higher spectral region which has little absorption, so yellow and red radiation cannot be converted into other radiations that are more efficiently utilized by photovoltaic cells

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