摘要:
White light-emitting electrophosphorescent polymeric light-emitting diodes (PLEDs) are demonstrated using semiconducting polymers blended with organometallic emitters as emissive materials in a common region. These materials may be cast from solution. The CIE coordinates, the color temperatures and the color rendering indices of the white emission are insensitive to the brightness, applied voltage and applied current density.
摘要:
White light-emitting electrophosphorescent polymeric light-emitting diodes (PLEDs) are demonstrated using semiconducting polymers blended with organometallic emitters as emissive materials in a common region. These materials may be cast from solution. The CIE coordinates, the color temperatures and the color rendering indices of the white emission are insensitive to the brightness, applied voltage and applied current density.
摘要:
Multilayer polymer light-emitting diodes (PLEDs) are demonstrated using semiconducting polymers blended with organometallic emitters as the emissive layer and one or both of an electron transport layer and a hole transparent layer on the appropriate electron injection and hole injection sides of the emissive layer. The transport layers reduce energy potential gaps between the hole injection electrode and the emissive polymer and between the electron injection electrode and the emissive polymer. A solvent-processing based procedure for preparing these devices is also disclosed It uses nonpolar solvent-based solutions of emissive polymers to form the emissive layer and polar solvent-based solutions to form the transport layers to minimize etching and other undesirable interactions as the multiple layers are being laid down. Illumination quality white light can be obtained with stable Commission Internationale de l'Eclairage coordinates, stable color temperatures, and stable color rendering indices, all close to those of “pure” white light. These multilayer white light-emitting PLEDs are useful as backlights for liquid crystal displays and for solid state lighting applications.
摘要:
Organic FETs are produced having high mobilities in the accumulation mode and in the depletion mode. Significantly higher mobility is obtained from FETs in which RR-P3HT film is applied by dip-coating to a thickness of only about 20 Å to 1 μm. It was found that the structural order of the semiconducting polymer at the interface between the semiconducting polymer and the SiO2 gate-insulator is important for achieving high carrier mobility. Heat-treatment under an inert atmosphere also was found to increase the on/off ratio of the FET.
摘要:
Multilayer polymer light-emitting diodes (PLEDs) are demonstrated using semiconducting polymers blended with organometallic emitters as the emissive layer and one or both of an electron transport layer and a hole transparent layer on the appropriate electron injection and hole injection sides of the emissive layer. The transport layers reduce energy potential gaps between the hole injection electrode and the emissive polymer and between the electron injection electrode and the emissive polymer. A solvent-processing based procedure for preparing these devices is also disclosed It uses nonpolar solvent-based solutions of emissive polymers to form the emissive layer and polar solvent-based solutions to form the transport layers to minimize etching and other undesirable interactions as the multiple layers are being laid down. Illumination quality white light can be obtained with stable Commission Internationale de l'Eclairage coordinates, stable color temperatures, and stable color rendering indices, all close to those of “pure” white light. These multilayer white light-emitting PLEDs are useful as backlights for liquid crystal displays and for solid state lighting applications.
摘要:
Improved processing methods for enhanced properties of conjugated polymer films are disclosed, as well as the enhanced conjugated polymer films produced thereby. Addition of low molecular weight alkyl-containing molecules to solutions used to form conjugated polymer films leads to improved photoconductivity and improvements in other electronic properties. The enhanced conjugated polymer films can be used in a variety of electronic devices, such as solar cells and photodiodes.
摘要:
Organic FETs are produced having high mobilities in the accumulation mode and in the depletion mode. Significantly higher mobility is obtained from FETs in which RR-P3HT film is applied by dip-coating to a thickness of only about 20 Å to 1 μm. It was found that the structural order of the semiconducting polymer at the interface between the semiconducting polymer and the SiO2 gate-insulator is important for achieving high carrier mobility. Heat-treatment under an inert atmosphere also was found to increase the on/off ratio of the FET.
摘要:
An improved garment hanger is provided, in several embodiments, that reduces the likelihood of the hanger being dislocated from the supporting hanger rack when the hanger is moving vertically as a result of the release of stored energy when garments are removed from the hanger. Various individual blocking members are provided on the different embodiments with several of the embodiments being particularly drawn to applications on typical plastic and wire hangers. Some blocking member configurations are particularly suited for reducing the degree of pivot by the hanger when supported by a hook-shaped hanger rack.
摘要:
A neutron detector, and method for fabricating same, having an active layer comprised of organic and inorganic materials such as polymers and/or small molecules. These materials function as a semiconductor host matrix that transports carriers excited by neutron absorption. The active layer is comprised of host semiconductor materials, composites of the host semiconductor materials with other polymers molecules, and particles, or multi-layer structures of the host semiconductor materials with other materials. The host semiconductor materials include in their molecular structure neutron capturing atoms such as 10B, 6Li, 157Gd, 235U, 239Pu, 51V, and 103Rh, or alternatively are blended with molecules or particles that contain the above atoms in addition to electron accepting molecules or particles. Using these materials allows for the simplified fabrication of inexpensive, large area, relatively lightweight, and flexible neutron detectors via film casting from solution, thermal evaporation, inkjet printing, and film laminate, or film extrusion.
摘要:
The present invention is directed to a blackjack wagering game including the steps of: wagering a first amount on an underlying blackjack game involving a player playing against a dealer; wagering a second amount on a side bet bonus game integrated with the underlying blackjack game, wherein the wager includes selecting at least one particular suit; providing one or more cards to the player and the dealer to form a player's initial hand and a dealer's initial hand; determining the outcome of the side bet bonus game wager, wherein the outcome depends on at least one of card of one of the initial hands including one or more cards of the at least one selected suit; and playing the underlying blackjack card game to determine a final outcome for the blackjack wager.