The present invention includes a fused polycyclic aromatic compound represented by general formula (1), where in formula (1), one among R.sub.1 and R.sub.2 is represented by general formula (2) and represents a substituent having three to five ring structures, and the other among R.sub.1 and R.sub.2 represents a hydrogen atom, where in formula (2), n represents an integer of 0-2.sub.R. —R.sub.3 represents a divalent linking group obtained by removing two hydrogen atoms from benzene or naphthalene, R.sub.4 represents a divalent linking group obtained by removing two hydrogen atoms from an aromatic ring of an aromatic hydrocarbon, and when n is 2, a plurality of R.sub.4's may be the same as or different from each other, R.sub.5 represents an aromatic hydrocarbon group.

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There are provided a photoelectric conversion film containing a quantum dot of a compound semiconductor that contains an Ag element, at least one element selected from an Sb element or a Bi element, and at least one element selected from an Se element or a Te element; a dispersion liquid that is used in the formation of the photoelectric conversion film; a photodetector element including the photoelectric conversion film; and an image sensor including the photodetector element.

A flexible infrared irradiation and temperature sensor is provided. The sensor includes a substantially cubic deformable rubber substrate and a conductive layer embedded in the rubber substrate, wherein the conductive layer comprises a middle portion comprising a composite film of carbon nanotubes (CNTs) and nickel phthalocyanine (NiPc); and one or more exterior portions comprising carbon nanotubes, wherein the one or more exterior portions do not include NiPc.

Described herein are electrochemical cells that include composite gel positioned between the first electrode and second electrode, wherein the composite gel comprises an electrolyte, a polyaryl amine, and an oxidant. The composite gels described herein are easy to produce at a low-cost, which makes them suitable in a number of different applications electrochromic devices, supercapacitors, solar cells, and hybrid photoactive supercapacitors.

Disubstituted diaryloxybenzoheterodiazole compound of general formula (I): ##STR00001##
in which: Z represents a sulfur atom, an oxygen atom, a selenium atom; or an NR.sub.5 group in which R.sub.5 is selected from linear or branched C.sub.1-C.sub.20, or from optionally substituted aryl groups; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined in the claims. The disubstituted diaryloxybenzoheterodiazole compound of general formula (I) can advantageously be used as a spectrum converter in luminescent solar concentrators (LSCs) which are in turn capable of improving the performance of photovoltaic devices (or solar devices) selected, for example, from photovoltaic cells (or solar cells), photovoltaic modules (or solar modules) on either a rigid substrate or a flexible substrate.

A multi-junction photovoltaic device comprising a layer of metal oxynitride between a first sub-cell and a second sub-cell is disclosed, the first sub-cell having a layer comprising a perovskite light absorber material. In addition, a method of manufacturing said multi junction photovoltaic device is disclosed. The metal oxynitride is preferably titanium oxynitride. Advantageously, the device may be produced in a simple, fast, consistent and inexpensive manner, whilst the properties of the titanium oxynitride layer may be tuned to avoid the occurrence of local shunt paths and to reduce reflection losses.

The invention is in the field of semiconductors. The invention is directed to a composition, a method for producing a layer, a layer, a photoconducting device and a photovoltaic device. The composition of the invention comprises a matrix comprising a polymer, and dispersed in said matrix one or more perovskite materials.

An optoelectronic component, including: a bottom electrode, a top electrode, a layer system having at least one photoactive layer, the layer system being disposed between the bottom electrode and the top electrode, a planarization layer disposed on a side of the bottom electrode and/or top electrode facing away from the layer system, at least one barrier layer disposed on the planarization layer, and at least one busbar, the at least one busbar being disposed on the at least one barrier layer, wherein: the planarization layer has electrically conductive particles the electrically conductive particles being introduced into the planarization layer, and the electrically conductive particles electrically conductively bridge the planarization layer through the at least one barrier layer such that the bottom electrode and/or the top electrode electrically conductively contacts the at least one busbar.

This application provides a solar cell, a method for preparing the solar cell, smart glasses, and an electronic device. The solar cell includes a first conductive layer, a second conductive layer, a first conductive lattice, a second conductive layer, and a functional layer. The functional layer is disposed between the first conductive layer and the second conductive layer, the functional layer is configured to absorb light and generate a photocurrent, and both the first conductive layer and the second conductive layer are configured to receive the photocurrent. The first conductive lattice is in contact with a surface that is of the first conductive layer. The second conductive lattice is in contact with the second conductive layer, and the first conductive lattice and the second conductive lattice are configured to output the photocurrent to the target device. This application can mitigate impact of a sheet resistance on cell efficiency.

A method for preparing photoactive perovskite materials. The method comprises the step of preparing a germanium halide precursor ink. Preparing a germanium halide precursor ink comprises the steps of: introducing a germanium halide into a vessel, introducing a first solvent to the vessel, and contacting the germanium halide with the first solvent to dissolve the germanium halide. The method further comprises depositing the germanium halide precursor ink onto a substrate, drying the germanium halide precursor ink to form a thin film, annealing the thin film, and rinsing the thin film with a second solvent and a salt.