Plextronics, Inc. | Date: 2014-03-14
Compositions for use in hole transporting layers (HTLs) or hole injection layers (HILs) are provided, as well as methods of making the compositions and devices fabricated from the compositions. OLED devices can be made. The compositions comprise at least one conductive conjugated polymer, at least one semiconducting matrix component that is different from the conductive conjugated polymer, and an optional dopant, and are substantially free of an insulating matrix component.
Plextronics, Inc. | Date: 2013-01-04
An organic optoelectronic device includes a substrate, an anode, a cathode, an active region comprising an organic material, an encapsulation that isolates the active region from an ambient environment, wherein the encapsulation comprises a housing, and a first hermetically sealed electrical path through the housing.
Plextronics, Inc. | Date: 2013-09-05
A device, such as an electroluminescent device, comprising (i) a transparent conductor; (ii) a metal grid disposed on said transparent conductor; and (iii) said metal grid is not covered by an insulator, but by a hole injection layer comprising at least one conjugated polymer and at least one matrix polymer. Methods for making the electroluminescent device are also disclosed.
Plextronics, Inc. | Date: 2014-02-10
Compositions comprising at least one hole transport material, such as a conjugated polymer, and at least one dopant, providing improved thermal stability. Compositions can be applied to substrates and used in HIL and HTL layers and organic electronic devices such as light emitting devices such as OLEDs or OPVs. The conjugated polymer can be a polythiophene, including a 3,4-substituted polythiophene or a regioregular polythiophene. The dopant can be a silver salt such as silver tetrakis(pentafluorophenyl)borate. Improved methods of making dopant are provided.
Plextronics, Inc. | Date: 2013-05-28
[Problem] To provide a conductive polymer for solid electrolyte capacitor having outstanding solubility in solvents or dispersibility in solvents and which can produce a capacitor having outstanding capacitor characteristics in high-temperature environments. [Means Used to Resolve the Problem] A conductive polymer (A) for solid electrolyte capacitor containing substituted polythiophene (P) having thiophene repeating units (D) substituted by a least one type of group (s) selected from a group made up of a polyether group (a) indicated in general formula (1); an alkoxy group (b) having 1 to 15 carbon atoms; an alkoxy alkyl group (c) indicated in general formula (2); an alkyl group (d) having 1 to 15 carbon atoms; and a group (e) indicated in general formula (3); as well as thiophene repeating units (E) wherein the hydrogen atoms at position 3 and position 4 on the thiophene ring have been substituted by group (s) and sulfo group (SO_(3)H) (f). (OR^(1))_(k)OR^(2 )(1) R^(3)OR^(4 )(2) R^(5)(OR^(6))_(m)OR^(7 )(3)
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 221.72K | Year: 2013
Organic Light Emitting Diode (OLED) is a new emerging technology that is energy efficient and environment friendly lighting replacement for current lighting technologies such as incandescent bulbs and fluorescent tubes. As performance of OLEDs has improved over the last several years it has demonstrated the potential to reach parity with LED lighting. However cost remains a major obstacle for main stream adoption and commercialization. According to DOE SSL road map, 40% of material cost is the cost of integrated substrates which include glass, ITO with metal grids and light-out-coupling (LOC) layers. As panel size increases, conductivity of ITO will not be sufficient to ensure brightness uniformity and power efficiency. Current best commercially available ITO substrates have sheet resistance & gt; ~5 ohms/sq. This is insufficient for large area panel with pixel size & gt; ~ 3x3 cm. Metal grids are needed in order to reduce sheet resistance of anode and hence reduce power consumption and improve luminance uniformity of OLED. In this proposal we demonstrate large area OLED panels on low cost anode structure by using inkjet printed grids using a novel high conductivity reactive silver ink and integrate the grids with Plextronics hole-injection layer (HIL). In order to reduce both material cost as well as increase thru-put by minimizing number of photolithography steps, inkjet printing will be used to fabricate anode structure. Printing offers direct patterning as well as high material utilization and thus potential for significant cost reduction. By process development and process integration of grids and HIL we demonstrate low cost printed anode structure that enables large area OLED panel manufacturing. Our proposal supports the development of affordable, large OLED lighting required for commercial applications such as custom lighting used in retail displays.
Plextronics, Inc. and Nano-c, Inc. | Date: 2014-02-19
Photovoltaic cells comprising an active layer comprising, as p-type material, conjugated polymers such as polythiophene and regioregular polythiophene, and as n-type material at least one fullerene derivative. The fullerene derivative can be C60, C70, or C84. The fullerene also can be functionalized with indene groups. Improved efficiency can be achieved.
Plextronics, Inc. | Date: 2013-05-14
The composition described here comprises at least one hole-transporting compound, wherein the hole-transporting compound comprises a core covalently bonded to at least two arylamine groups, wherein the arylamine group optionally comprises one or more intractability groups. The composition can provide good film formation and stability when coated onto hole injection layers. Solution processing of hole transporting layers of OLEDs can be achieved with the composition described here. Good mobility can be achieved.
Cambrios Technologies and Plextronics, Inc. | Date: 2013-03-28
Organic electronic devices, compositions, and methods are disclosed that employ electrically conductive nanowires and conducting materials such as conjugated polymers such as sulfonated regioregular polythiophenes which provide high device performance such as good solar cell efficiency. Devices requiring transparent conductors that are resilient to physical stresses can be fabricated, with reduced corrosion problems.
Plextronics, Inc. | Date: 2013-04-23
A composition comprising: at least one compound comprising a hole transporting core, wherein the core is covalently bonded to a first arylamine group and also covalently bonded to a second arylamine group different from the first, and wherein the compound is covalently bonded to at least one intractability group, wherein the intractability group is covalently bonded to the hole transporting core, the first arylamine group, the second arylamine group, or a combination thereof, and wherein the compound has a molecular weight of about 5,000 g/mole or less. Blended mixtures of arylamine compounds, including fluorene core compounds, can provide good film formation and stability when coated onto hole injection layers. Solution processing of OLEDs is a particularly important application.