Abstract: The invention relates to purely organic molecules according to formula A without metal center and their use as emitters in organic light-emitting diodes (OLEDs) and in other optoelectronic devices with Y is independently selected from the group consisting of C, PR, S, and S(?O); W is independently selected from the group consisting of C(CN)2, NR, O, and S; X is selected from the group consisting of CR2, C?C(CN)2, NR, O, and S; Ar is a substituted aryl or heteroaryl group with 5 to 40 aromatic ring atoms, which is substituted with m same or different radicals R* and with n same or different donor groups D with electron-donating properties, wherein m+n equals the number of substitutable ring atoms and wherein D comprises a structure of formula I: wherein A and B are independently selected from the group consisting of CRR?, CR, NR, and N, wherein there is a single of a double bond between A and B and a single or a double bond between B and Z; Z is a direct bond or a divalent organic bridge group sele

Abstract: The present invention relates to a method for preparing a perovskite compound usable as a light absorber of a solar cell, and provides a method for preparing a light absorber of a solar cell in which the crystallinity of a perovskite compound is increased, resulting in an increase in the stability and efficiency of the solar cell.

Abstract: An image sensor may include an organic photo-sensing device configured to selectively sense first visible light and a photo-sensing device array including a first photo-sensing device configured to selectively sense second visible light, a second photo-sensing device configured to selectively sense third visible light, and a third photo-sensing device configured to selectively sense mixed light of the second visible light and the third visible light. The image sensor may include a color filter array including a first color filter configured to selectively transmit the second visible light, a second color filter configured to selectively transmit the third visible light, and a third color filter configured to transmit mixed light of the second visible light and the third visible light. At least the first photo-sensing device and the second photo-sensing device may be at different depths in a substrate and may be laterally offset from each other.

Abstract: A method of making high quality insulating single crystalline In2Se3 films by (1) depositing at least one quintuple layer (QL) of Bi2Se3 on a substrate layer at a temperature below which only the Se adheres to the substrate; (2) depositing a plurality of In2Se3 QL's on the deposited Bi2Se3 layer or layers at a temperature between about 200° C. and about 330° C. to form a hetero-structure; and (3) heating the hetero-structure to a temperature between about 400° C. and about 700° C. so that the Bi2Se3 layer is diffused through the In2Se3 layer and evaporated away.

Abstract: Provided is a photoelectric conversion element including a first electrode, a hole blocking layer, an electron transport layer, a first hole transport layer, and a second electrode, wherein the first hole transport layer includes at least one of basic compounds represented by general formula (1a) and general formula (1b) below: where in the formula (1a) or (1b), R1 and R2 represent a substituted or unsubstituted alkyl group or aromatic hydrocarbon group and may be identical or different, and R1 and R2 may bind with each other to form a substituted or unsubstituted heterocyclic group containing a nitrogen atom.

Abstract: Embodiments of the present invention provides compounds, compositions, and methods for their preparation that provide efficient intramolecular fission, such that local order and strong nearest neighbor coupling is no longer a design constraint. Inventive materials include organic oligomers and polymers designed to exhibit strong intrachain donor-acceptor interactions and provide intramolecular singlet fission, whereby triplet populations can be generated in very high yields of, e.g., 170% or more.

Abstract: According to one embodiment, a photoelectric conversion element includes a photoelectric conversion layer, a first layer and an intermediate layer. The photoelectric conversion layer includes a material having a perovskite structure. The first layer includes a first substance and a second substance. The intermediate layer is provided between the photoelectric conversion layer and the first layer. A concentration of the second substance in the first layer is lower than a concentration of the first substance in the first layer.

Abstract: A pixel array in a solid-state imaging device includes first and second signal lines provided for each column. A pixel belongs to a first or second group on a row-by-row basis and includes a photoelectric conversion film, a FD line for accumulating signal charge, and an amplifier transistor for providing a voltage according to the signal charge. The pixel in the first group further includes a selection transistor for proving output voltage of the amplifier transistor to the first signal line, and the pixel in the second group further includes a selection transistor for proving output voltage of the amplifier transistor to the second signal line. The first signal line is disposed between the FD line in the first group and the second signal line, and the second signal line is disposed between the FD line in the second group and the first signal line.

Abstract: Embodiments relate to functional test methods useful for fabricating products containing Light Emitting Diode (LED) structures. In particular, LED arrays are functionally tested by injecting current via a displacement current coupling device using a field plate comprising of an electrode and insulator placed in close proximity to the LED array. A controlled voltage waveform is then applied to the field plate electrode to excite the LED devices in parallel for high-throughput. A camera records the individual light emission resulting from the electrical excitation to yield a function test of a plurality of LED devices. Changing the voltage conditions can excite the LEDs at differing current density levels to functionally measure external quantum efficiency and other important device functional parameters.

Abstract: A method for preparing polymers by direct heteroarylation or arylation polycondensation is described herein. The method includes preparing a reaction mixture including at least a monomer to be polymerized, a catalyst and a ligand; heating the reaction mixture; and, optionally, end-capping the reaction mixture.

Abstract: Photocatalyst microparticles are provided in a photocatalyst layer coming into contact with a base film, the photocatalyst microparticles are irradiated with ultraviolet rays, and voids are formed in a boundary region between a protective layer and the photocatalyst layer.

Abstract: The present invention concerns fluorescent boron thienyldipyrromethene type compounds, their preparation process, as well as their use as an electron donor in the field of organic electronics, in particular for the production of a photoactive layer in photovoltaic cells of the bulk heterojunction type or for the production of field effect transistors.

Abstract: In an image sensor comprising a plurality of imaging pixels, each pixel includes: a microlens for guiding incident light into a corresponding one of the plurality of imaging pixels, a color filter transmitting light of a predetermined wavelength band, a first photoelectric conversion unit for photoelectrically converting the light transmitted through the color filter, and a second photoelectric conversion unit provided below the first photoelectric conversion unit with a predetermined space therebetween. The first photoelectric conversion unit is provided with a first electrode provided to acquire a first signal from a first region of the first photoelectric conversion unit and a second electrode provided to acquire a second signal from a second region different from the first region. A light transmittance of the first photoelectric conversion unit with respect to the predetermined wavelength band is higher than 50%.

Abstract: An imaging device includes at least one unit pixel cell including a photoelectric converter that converts incident light into electric charges. The photoelectric converter includes: a first electrode; a light-transmitting second electrode; a first photoelectric conversion layer disposed between the first electrode and the second electrode and containing a first material having an absorption peak at a first wavelength; and a second photoelectric conversion layer disposed between the first photoelectric conversion layer and the second electrode and containing a second material having an absorption peak at a second wavelength different from the first wavelength. The absolute value of the ionization potential of the first material is larger by at least 0.2 eV than the absolute value of the ionization potential of the second material.

Abstract: The present invention provides a carbon dioxide absorbent comprising a primary amine and a dialkylene glycol dialkyl ether or trialkylene glycol dialkyl ether. The carbon dioxide absorbent according to the present invention has an excellent carbon dioxide absorptivity, absorption rate and regeneration property.

Abstract: A quantum dot device including an anode and a cathode facing each other, a quantum dot layer between the anode and the cathode and electron auxiliary layer between the quantum dot layer and the cathode, wherein the electron auxiliary layer includes at least one nanoparticle represented by Chemical Formula 1 and at least one metal halide represented by Chemical Formula 2, and a display device.

Abstract: An object of the present invention is to provide a transparent electrode including a substrate having thereon a conductive layer containing silver as a main component, wherein the transparent electrode has an organic functional layer between the substrate and the conductive layer; and the organic functional layer contains a first organic compound represented by Formula (1) and a second organic compound having a different structure from a structure of the first organic compound,

Abstract: A photoelectric conversion element includes: a first electrode; a photoelectric conversion layer provided on the first electrode, and including an organic semiconductor with quantum efficiency of 1% or less; and a second electrode provided on the photoelectric conversion layer.

Abstract: The present invention provides a light emitting element using a charge generating layer formed through a solution process and a method for manufacturing the same. The present invention provides a light emitting element comprising a positive electrode, a negative electrode, a light emitting layer, and a charge generating layer, the light emitting element being characterized in that the charge generating layer has a p-type layer, which comprises an organic semiconductor, and an n-type layer, which comprises an oxide semiconductor, formed in a layer-by-layer structure through a solution process.

Abstract: A composition for forming an organic semiconductor film that is excellent in printing properties makes it possible to prepare an organic thin film transistor excellent in mobility and insulation reliability. The composition may be used with an organic thin film transistor, electronic paper, and a display device. The composition for forming an organic semiconductor film contains an organic semiconductor material, a phenolic reductant, a polymer compound having a weight-average molecular weight of equal to or greater than 500,000, a surfactant, and an organic solvent having a standard boiling point of equal to or higher than 150° C. A ratio of a content of the organic semiconductor material to a content of the polymer compound is 0.02 to 10 based on mass, and a ratio of a content of the phenolic reductant to the content of the polymer compound is 0.1 to 5 based on mass.

Abstract: An organic photoelectronic device includes a first electrode and a second electrode facing each other, and first and second photoelectronic conversion layers between the first electrode and the second electrode. The first and second photoelectronic conversion layers include a p-type semiconductor and an n-type semiconductor. The first photoelectronic conversion layer has a first composition ratio (p1/n1) of the p-type semiconductor relative to the n-type semiconductor, the second photoelectronic conversion layer has a second composition ratio (p2/n2) of the p-type semiconductor relative to the n-type semiconductor, and the first composition ratio (p1/n1) is greater than the second composition ratio (p2/n2).

Abstract: The present invention provides a manufacturing method of an OLED display panel and an OLED display panel. The manufacturing method of the OLED display panel of the present invention utilizes an inverted OLED element and manufactures an interface modification layer between the cathode of the OLED element and the light emitting layer by ink jet printing with an interface modification printing liquid. The interface modification printing liquid comprises an electron transporting material, metal nanoparticles which are surface-modified, a surface tension modifier and a viscosity modifier. The interface modification layer is a material layer comprising the electron transporting material and the metal nanoparticles. The electron transporting material can enhance the injection and transport of carriers from the cathode. The strong local electric field generated by the metal nanoparticles with the surface plasma resonance can enhance the injection efficiency of the electrons.

Abstract: A dye-sensitized solar cell module (1) has at least two dye-sensitized solar cell units (2a-c) arranged adjacent each other and connected in series. Each dye-sensitized solar cell module has a porous insulating substrate (7), a first porous conducting layer (4) formed on one side of the porous insulating substrate (7) and a second porous conducting layer (5) formed on an opposite side of the porous insulating substrate (7). A series connecting element (6) penetrates through the porous insulating substrate (7) and extends between the first porous conducting layer (4) of one of the cell units and the second porous conducting layer (5) of the adjacent cell unit. Each of the cell units is surrounded by an ion barrier (12) in the form of a non-porous layer penetrating through the porous insulating substrate (7) to prevent the electrolyte from leaking to an adjacent cell unit.

Abstract: The present specification relates to a solar cell.

Abstract: An apparatus and method pertaining to a perpetual energy harvester. The harvester absorbs ambient infrared radiation and provides continual power regardless of the environment. The device seeks to harvest the largely overlooked blackbody radiation through use of a semiconductor thermal harvester.

Abstract: A display device including a pixel electrode, a counter electrode, and an organic layer arranged between the pixel electrode and the counter electrode, wherein the organic layer includes a hole injection layer in contact with the pixel electrode, a hole transport layer above the hole injection layer, a light emitting layer and an electron transport layer, the hole injection layer includes an inorganic material, and the inorganic material has a work function of 4.4 eV or less and includes one element or a plurality of elements selected from Na, Mg, K, Rb, Sr, Cs, Ba, Fr, Ca, Yb, Li, Al, Sm, Er and Ho, or a fluoride or an oxide of the elements.

Abstract: In one aspect, single-junction organic photovoltaic devices are provided exhibiting high Voc values while employing single-junction architecture. A single-junction photovoltaic device described herein comprises an anode, a cathode and an active layer residing between the anode and cathode, the active layer comprising an organic electron donor and an organic electron acceptor, wherein the photovoltaic device generates a Voc of at least 1.4 V. Uniquely, high Voc photovoltaic devices described herein can be transparent to the majority of visible and/or infrared spectral irradiation in some embodiments.

Abstract: An organic dye for a dye-sensitized solar cell (DSSC) comprising at least one electron-acceptor unit and at least one ?-conjugated unit is described. Said organic dye is particularly useful in a dye-sensitized photoelectric transformation element which, in its turn, can be used in a dye-sensitized solar cell (DSSC).

Abstract: The present disclosure provides a photoelectric conversion element including a lower electrode, a photoelectric conversion layer, and an upper electrode in this order; a voltage is applied between the lower electrode and the upper electrode; the photoelectric conversion layer contains a first organic compound and a second organic compound; the first organic compound has a lower oxidation potential than the second organic compound, and ?E represented by the following formula (A) satisfies the following formula (B); where ?E=oxidation potential of first organic compound?reduction potential of second organic compound (A) ?E?1.79[V]??(B).

Abstract: The present invention provides an organic light emitting device including a light emitting layer comprising a compound represented by Chemical Formula 1 and an electron transport layer comprising a compound represented by Chemical Formula 2, and having improved driving voltage and efficiency.

Abstract: The present disclosure relates to an image pickup device that inhibits color mixture or noise, and an electronic apparatus. The image pickup device of the present disclosure includes an image plane phase difference detection pixel for image plane phase difference AF. The image plane phase difference detection pixel includes: a first photoelectric conversion section; an upper electrode section that is one of electrodes disposed facing each other, the upper electrode section being formed on a light incident side first photoelectric conversion section; and a lower electrode section that is another of the electrodes disposed facing each other, the lower electrode section being formed on an opposite side of the first photoelectric conversion section, the lower electrode section being multiple-divided at a position that avoids a center of the incident light. The present disclosure is applicable to image sensors.

Abstract: The invention relates to a process for producing a conjugated polymer blend. The process for producing the conjugated polymer blend comprises the mixture of: a polymer A (X-Y), where X is and Y is and h is a substituent, a polymer B (X-Y?) where X is Y? is and j is a substituent, and an acceptor. In this process h and j are different substituents and independently selected from each other.

Abstract: Disclosed are a dye-sensitized solar cell including a polymer/graphene composite gel electrolyte and methods of preparing the dye-sensitized solar cell.

Abstract: A solar cell in a stack structure having no step may include a solar cell, and an electrode formed on one surface of the solar cell, in which the solar cell is/are stacked on a center portion of a substrate with the electrode interposed therebetween, and the electrode is/are in contact with an electrode line coated on an edge portion of the substrate.

Abstract: The present invention relates to an organic charge transport layer having a low refractive index, and to an organic EL device, an organic semiconductor device, and an organic photoelectric device which are provided with the organic charge transport layer. An object of the present invention is to provide an organic semiconductor thin film having a dramatically reduced refractive index without impairing conductivity, by mixing a predetermined amount of an electret material into an organic semiconductor material. The organic charge transport layer according to the present invention is characterized by containing an organic semiconductor material and an electret material. It is preferable that the organic semiconductor material is a hole transport material and the electret material has a refractive index of 1.5 or lower.

Abstract: A molecular complex comprising wherein X1 and X2 are independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, ester, ketone, amide and aryl groups; R1, R2, R1? and R2? are side chains independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, alkylthio, ester, ketone and aryl groups; G is an aryl group; and wherein the thiophene groups are unsymmetrical.

Abstract: The present specification relates to a heterocyclic compound and an organic solar cell including the same.

Abstract: The present invention relates to new semiconducting compounds having at least one optionally substituted dithieno[1,2,3]thiadiazole moiety. The compounds disclosed herein can exhibit high carrier mobility and/or efficient light absorption/emission characteristics, and can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.

Abstract: A composition of matter, in particular a photovoltaic cell, comprising: at least one core semiconductor nanowire on a graphitic substrate, said at least one core nanowire having been grown epitaxially on said substrate wherein said nanowire comprises at least one group III-V compound or at least one group II-VI compound or at least one group IV element; a semiconductor shell surrounding said core nanowire, said shell comprising at least one group III-V compound or at least one group II-VI compound or at least one group IV element such that said core nanowire and said shell form a n-type semiconductor and a p-type semiconductor respectively or vice versa; and an outer conducting coating surrounding said shell which forms an electrode contact.

Abstract: Perovskite hybrid solar cells utilize a bulk heterojunction (BHJ) active layer that is formed as a composite of an organometal halide perovskite and a water soluble fullerene, such as A10C60. In alternative embodiments, the BHJ active layer may be formed as a composite of an organometal halide perovskite material and a fullerene, such as PC61BM. Thus, the fullerene acts as an electron extraction acceptor within the BHJ, allowing such solar cells to more efficiently transport the electrons from the fullerene/perovskite interface to a fullerene-based electron transport layer (ETL). As a result, increased fill factor (FF), as well as improvements in the short-circuit current density (JSC) and power conversion efficiency (PCE) are achieved by the solar cells.

Abstract: A thin film semiconductor comprising a compound of formula I or II wherein: R1 and R2, at each occurrence, independently are selected from a C1-30 alkyl group, a C2-30 alkenyl group, a C2-30 alkynyl group and a C1-30 haloalkyl group, R3, R4, R5, and R6 independently are H or an electron-withdrawing group, wherein at least one of R3, R4, R5, and R6 is an electron-withdrawing group; and a non-conductive polymer.

Abstract: The present invention provides a dye-sensitized solar cell module having a plurality of dye-sensitized solar cells connected in series, wherein this module has at least one power generation unit in which at least one bypass diode is connected in parallel to n number (where n represents an integer of 1 to 4) of dye-sensitized solar cells among the plurality of dye-sensitized solar cells.

Abstract: An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0×102 ?cm.

Abstract: The present invention relates to a conductive polymer, the organic photovoltaic cell comprising the same, and the synthesis method of the same. The novel polymer, according to the present invention, displays more excellent optical properties and higher photoelectric conversion efficiency than the conventional RRa (regiorandom) polymer due to its symmetrical structure of quaterthiophene and benzothiadiazole substituted with fluorine.

Abstract: Solar dye cells having a plastic housing, and methods of construction such solar dye cells.

Abstract: Monolithic tandem chalcopyrite-perovskite photovoltaic devices and techniques for formation thereof are provided. In one aspect, a tandem photovoltaic device is provided. The tandem photovoltaic device includes a substrate; a bottom solar cell on the substrate, the bottom solar cell having a first absorber layer that includes a chalcopyrite material; and a top solar cell monolithically integrated with the bottom solar cell, the top solar cell having a second absorber layer that includes a perovskite material. A monolithic tandem photovoltaic device and method of formation thereof are also provided.

Abstract: One embodiment provides a structure, comprising: a display; at least one structural component disposed over a portion of the display, wherein the at least on structural component comprises at least one amorphous alloy; and wherein a portion of the display is foldable.

Abstract: A solar cell element includes a semiconductor substrate, a passivation layer and a protective layer. The semiconductor substrate includes a p-type semiconductor region on one surface side thereof. The passivation layer is located on the p-type semiconductor region and contains aluminum oxide. The protective layer is located on the passivation layer and includes polysiloxane layer which contains an alkyl group.

Abstract: This invention relates to a method and system for predictively evaluating a water-insoluble material even without solubility measurement experiments.

Abstract: A method and apparatus for calibrating a reflector in a solar array. A switch device is switched from a first state to a second state. A calibration voltage is applied to each of a set of actuation devices associated with the reflector in response to the switch device switching to the second state when the calibration circuit is electrically connected to the set of actuation devices.