30 results about "Molecular axis" patented technology

Disclosed is an apparatus and method for embodying mirror function in a portable terminal by which a user can use an LCD of the portable terminal as a mirror, with a rear polarizer of the LCD constructed to allow the LCD to reflect incident light and to perform as a mirror when powered off, and to perform the original function of LCD when powered on. The LCD may further comprise a front polarizer for polarizing the external incident light to a certain direction, a liquid crystal for deflecting the incident light from the front polarizer about a molecular axis in the liquid crystal and arraying the light parallel to the direction of an electric field to pass the light along the molecular axis, and a rear polarizer for reflecting incident light from the liquid crystal when power is not applied and allowing the incident light to pass by the liquid crystal when power is applied.

The invention relates to an organic light-emitting device (OLED) comprising at least: a first electrode (102); a second electrode (105); an organic light emissive layer (104) arranged between said first electrode and said second electrode; and an organic charge transport layer (103) arranged between said first electrode and said emissive layer, wherein i) the charge transport layer is patterned or provided with a periodic surface structure on a surface of the charge transport layer facing the emissive layer, and / or ii) an alignment layer (406) which allows for charge transport to the emissive layer is provided between said charge transport layer and said emissive layer, which alignment layer promotes alignment of the optical dipoles of molecules of said light emissive layer towards a common preferred direction of the molecular axes. The use of the patterned or structured charge transport layer and / or the alignment layer provides improved light out coupling from the OLED layer stack, i.e. increased external quantum efficiency.

The invention discloses double-alkyl-terminated cyclohexylbiphenyl derivative with lateral difluoromethylene ether bridge bonds and a preparation method and application thereof; a structural formula of the compound is as shown in formula I that is shown in the description; in the formula I, both R and R' are C1-C10 linear or branched alkyl; difluoromethylene ether group is introduced to cyclohexylbiphenyl ring structure; under electronegative accumulative action of C-F bonds in the group and the group being in lateral position of the molecular long axis, these molecules have great dielectric constant (epsilon T) perpendicular to the molecular axis and negative dielectric anisotropy (Delta<epsilon><0); due to the introduction of the difluoromethylene ether group, conjugation of the biphenyl structure is broken, great anisotropy (Delta<epsilon><0) is imparted; this compound has low melting point and improved solubility and is a high-performance liquid crystal display material.

The invention relates to an organic molecular line. The molecular line comprises tetrathiafulvalene, derivative thereof and a substrate, the tetrathiafulvalene and the derivative thereof are accumulated along the lowest-system energy direction Pi-Pi on the surface of the substrate, the intermolecular distance of the organic molecular line is 0.5nm to 0.8nm, and the organic molecular line is 40nm to 400nm long and 0.8nm to 1.2nm wide; the organic molecular line has a single-layered double-molecular line structure or a single-line structure on the surface of the substrate; and the molecular line makes the included angle of 60 degrees or 120 degrees with the molecular axis. A method for preparing the molecular line has the following steps that: TTFs is dispersed and dissolved in tetradecane,so that the tetradecane solution of TTFs is obtained; the tetradecane solution of TTFs is dripped to a clean, even highly oriented pyrolytic graphite (HOPG) surface, and after the solution is dispersed and stabilized on the surface, the one-dimensional ordered TTFs molecular line is obtained. The invention utilizes the solution method to realize the self-assembling growth of TTFs molecules on thesolid surface, a molecular line which is tens to hundreds of nanometers long can be obtained, and the preparation technique is simple, and is applicable to various TTFs molecules.

The invention discloses a method for generating an extreme ultraviolet coherent light source with approximate circular deflection. The method comprises the following steps of (S1) enhancing linear polarization incident laser until the intensity level of the linear polarization incident laser reaches 1013-1014W / CM(2); (S2) performing interaction on the enhanced incident laser and diatomic gas molecules to generate a harmonic; adjusting an included angle between the polarization direction of the linear polarization incident laser and a molecular axis until a harmonic stage required for generation of the light source is acquired; and (S3) converting spectra of two harmonic components of which the energy intensities are equal to each other and the relative phases are 90 degrees in the harmonic stage into two attosecond pulses, and synthesizing the two attosecond pulses to obtain the extreme ultraviolet coherent light source with approximate circular deflection. A harmonic spectrum has two components in two different directions; the energy intensities of the components of the harmonic spectrum in the harmonic stage are equal to each other; and the relative phases are 90 degrees. By the method for generating the extreme ultraviolet coherent light source with approximate circular deflection, the generated extreme ultraviolet coherent light source with approximate circular deflection is high in harmonic efficiency and short in pulse width.

A thin film transistor of the present invention is a thin film transistor (100) having a semiconductor layer (14), a source region (15) and a drain region (16) provided to be isolated from each other so as to mutually oppose the semiconductor layer. The semiconductor layer has π-conjugated organic semiconductor molecules as its main component. The π-conjugated organic semiconductor molecules are oriented so that π orbitals substantially oppose each other and that the molecular axis of the main chains is oriented to be inclined with respect to a direction of electric field in a channel formed in the semiconductor layer.