Abstract: Described are organic photovoltaic devices comprising an anode; a cathode; and a photoactive organic material in a layer disposed between the anode and the cathode, the energy difference between the triplet energy state (T1) and the singlet energy state (S1) (?EST) in the photoactive organic material is less than about 300 meV; and when the organic photovoltaic device is illuminated with light having an AM1.5 spectrum, the organic photovoltaic device has an open circuit voltage of greater than 0.9 V, a power conversion efficiency of greater than 22%, and an EL external quantum efficiency >5%.

Abstract: Provided are compounds of Formula (I). Also provided are formulations comprising these compounds. Further provided are optoelectronic devices that utilize these compounds.

Abstract: The present invention relates in part to an asymmetric non-fullerene acceptor compound for use in organic photovoltaic (OPV) devices. The invention also relates in part to an OPV device comprising an asymmetric non-fullerene acceptor compound.

Abstract: A method of making a photovoltaic cell comprises the steps of providing a substrate in a vacuum, depositing an anode over the substrate, depositing a first heterojunction layer over the anode layer, depositing a second heterojunction layer over the first heterojunction layer, depositing a cathode over the second heterojunction layer, and releasing the vacuum. A photovoltaic cell is also described.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency.

Abstract: A memory device includes a memory array and a sense amplifier. The sense amplifier operates with a first supply voltage and be enabled, in response to an enable signal, to receive first and second current signals from the memory array through first and second nodes, and includes a pull-up circuit and a latch circuit. The pull-up circuit is coupled between a first supply voltage terminal and the first to second nodes, and couples, in response to a first control signal having a low logic state, the first supply voltage terminal to the first and second nodes. The latch circuit generates, in response to the first and second current signals received from the first and second nodes, first and second output signals for determining a data stored in a memory cell in the memory array when the first supply voltage terminal is coupled to the first and second nodes.

Abstract: Provided are compounds of Formula I. Also provided are formulations comprising these compounds. Further provided are optoelectronic devices that utilize these compounds.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency. One example of a non-fullerene acceptor is (4,4,10,10-tetrakis(4-hexylphenyl)-5,11-(2-ethylhexyloxy)-4,10-dihydro-dithienyl[1,2-b:4,5b?]benzodi-thiophene-2,8-diyl) bis(2-(3-oxo-2,3-dihydroinden-5,6-dichloro-1-ylidene) malononitrile.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency. One example of a non-fullerene acceptor is (4,4,10,10-tetrakis(4-hexylphenyl)-5,11-(2-ethylhexyloxy)-4,10-dihydro-dithienyl[1,2-b:4,5b?] benzodi-thiophene-2,8-diyl) bis(2-(3-oxo-2,3-dihydroinden-5,6-dichloro-1-ylidene) malononitrile.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency.

Abstract: A photovoltaic cell comprises an anode, a cathode, a first subcell positioned between the anode and the cathode, the first subcell comprising a first donor material and a first acceptor material, and a second subcell positioned between the first subcell and the cathode, the second subcell comprising a second donor material and a second acceptor material. A method of fabricating a photovoltaic cell is also described.

Abstract: The present invention relates in part to an asymmetric non-fullerene acceptor compound for use in organic photovoltaic (OPV) devices. The invention also relates in part to an OPV device comprising an asymmetric non-fullerene acceptor compound.

Abstract: A method of making a photovoltaic cell comprises the steps of providing a substrate in a vacuum, depositing an anode over the substrate, depositing a first heterojunction layer over the anode layer, depositing a second heterojunction layer over the first heterojunction layer, depositing a cathode over the second heterojunction layer, and releasing the vacuum. A photovoltaic cell is also described.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the OPV or solar cell includes an anode; a cathode; a first active layer positioned between the anode and the cathode, the first active layer configured to absorb light in a first wavelength spectrum; a second active layer positioned between the anode and the cathode, the second active layer configured to absorb light in a second wavelength spectrum; and a recombination zone positioned between the first active layer and the second active layer.

Abstract: An organic optoelectronic device comprises a first electrode, a first infrared photovoltaic subcell positioned over the first electrode, a second infrared photovoltaic subcell positioned over the first near-infrared subcell, and a first visible photovoltaic subcell positioned over the second near-infrared subcell, a second electrode positioned between the second near-infrared photovoltaic subcell and the first visible photovoltaic subcell, and a third electrode positioned over the first visible photovoltaic subcell, wherein the first electrode and the third electrode are held at the same potential relative to the second electrode.

Abstract: Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the acceptor with an active layer of an OPV includes is a non-fullerene acceptor. Such non-fullerene acceptors may provide improved OPV performance characteristics such as improved power conversion efficiency, open circuit voltage, fill factor, short circuit current, and/or external quantum efficiency. One example of a non-fullerene acceptor is (4,4,10,10-tetrakis(4-hexylphenyl)-5,11-(2-ethylhexyloxy)-4,10-dihydro-dithienyl[1,2-b:4,5b?] benzodi-thiophene-2,8-diyl) bis(2-(3-oxo-2,3-dihydroinden-5,6-dichloro-1-ylidene) malononitrile.

Abstract: An organic photovoltaic cell comprises a first electrode, a second electrode, an active layer comprising at least one donor material and at least one acceptor material, positioned between the first electrode and the second electrode, an outcoupling layer positioned on a surface of the first electrode such that the first electrode is positioned between the outcoupling layer and the active layer, and an anti-reflective coating positioned over a surface of the second electrode such that the second electrode is positioned between the anti-reflective coating and the active layer, wherein the organic photovoltaic cell is at least semi-transparent to at least one wavelength range. A method of fabricating an organic device is also described.

Abstract: An ultra-high temperature (UHT) rigidity seal ball valve that includes an upper cover, a valve cover, a valve body, a valve rod and a ball body. The valve seat is arranged in the valve body; the valve rod penetrates the upper cover and the valve cover sequentially and connects to the ball body; a sealing element is arranged between the upper cover and the valve rod and between the valve cover and the valve rod; the ball body includes a medium channel; a hermetically-sealed cooling cavity encircles the outside of the medium channel of the ball body; a through hole allowing cooling liquid to pass through to the cooling cavity is formed in the valve rod. An accommodating cavity is arranged in the ball body; the through communicates with the accommodating cavity, so that cooling liquid can be introduced to a product when the valve operates at an ultra-high temperature.