Showing papers on "Organic semiconductor published in 1977"

Polymeric compositions for manufacture of secondary electron multiplier tubes and method for manufacture thereof

Abstract: Disclosed are polymeric compositions for manufacture of secondary electron multiplier tubes. The polymeric compositions may be provided by combinations of (1) insulating polymers having a high secondary yield, (2) conductive particles such as carbon black, graphite or metal particles which may be granularly dispersed into the insulating polymers and (3) organic semiconductors soluble in and compatible with the insulating polymers and adapted to be molecularly dispersed therein. The organic semiconductors may be organic semiconducting polymers wherein the polymers themselves are conductive.

Purification apparatus for **copper phthalocyanine

Abstract: PURPOSE:A purification apparatus capable of forming beta-copper phthalocyanine which is an organic semiconductor material, with simplifity at a moderate temperature zone after the sublimation at a high temperature zone in the same apparatus.

Organic conductors and semiconductors : proceedings of the international conference, Siófok, Hungary 1976

Abstract: Summary remarks.- Quantum solitons in one-dimensional conductors.- Infrared problems and phase transitions of continuous order in low-dimensional systems.- Scaling. Theory of a one-dimensional fermi gas model with two characteristic energies.- On the Efetov-Larkin model of a strongly interacting one-dimensional system.- Cluster expansion methods applied to a I-d Fermion system.- Magnetic susceptibility of a one-dimensional Fermion-system.- Excitations in the antiferromagnetic Heisenberg chain.- Displacement correlation of classical ions in the incommensurate Frohlich model of a one-dimensional metal.- High temperature structural instability in quasi-one-dimensional conductors.- On the charge distribution and the lattice distortion of quasi-one-dimensional systems.- Quasi-one-dimensional systems.- The role of interchain coupling in linear conductors.- Three-dimensional ordering in the system of weakly coupled chains.- Order in coupled metallic chains.- The two-chain problem: A model of TTF-TCNQ.- On the problem of phase transitions in quasi-id metallic systems.- The exciton model of superconductivity in linear chains - revisited.- Excitonic "superfluidity" in low-dimensional crystals.- The impurity effect on the phase transitions in the quasi-one-dimensional conductors.- Singularity of the electronic density of states due to impurities in the ID-systems with the half-filled zone.- Conductivity of quasi-one-dimensional metal systems with random impurities at T=O.- Impurity pinning of charge density wave in the Peierls-Frohlich state.- Disordered quasi-one-dimensional materials.- The effect of phonons on localization and electroconductivity in ld conductors.- Symmetry changes and phase transitions in TTF-TCNQ.- Perpendicular phase dependence in (TTF) (TCNQ).- A model for the metal-insulator transition in TSeF-TCNQ.- Chiral charge density waves in quasi one-dimensional organic conductors.- The Peierls instability in the ID metal TTF-TCNQ.- Organic conductors derived from substituted tetraselenafulvalenes.- Chemical trends in organic conductors: Stabilization of the nearly one-dimensional metallic state.- Optical properties of hexamethylene-tetraselenafulvalinium tetracyanoquinodi-methanide (HMTSF-TCNQ).- X-ray scattering of TSeF-TCNQ and HMTSeF-TCNQ.- Observation of a large hall effect in HMTSF-TCNQ below room temperature.- Nuclear spin relaxation studies of one-dimensional organic conductors, TTF-TCNQ and HMTSF-TCNQ.- Magnetic properties of one-dimensional charge transfer conductors: Pressure effects.- Some remarks on the microwave permittivity measurements of organic semiconductors.- Organic alloys.- Organic conductors with low-symmetric acceptors.- Neutron and X-ray diffuse scattering study of tetrathiofulvalene tetracyanoouinodimethane (TTF-TCNQ).- Optical evidence for coulomb interactions in TTF-TCNQ.- Anisotropy in the critical behavior of TTF-TCNQ and TSeF-TCNQ.- Magnetic susceptibility of TTF-TCNQ single crystals in the phase transition region.- New, highly conductive, organic solids.- The new class of the quasi-one-dimensional organic metals - The cation-radical salts of the TTT.- Physical properties of a charge transfer complex with TCNQ and iodine: Evidence of a latttice distortion.- Structure, physical properties and phase transition of a TCNQ salt of 1 : 2 stoichiometry : DECA (TCNQ)2.- Phase transition in Py(TCNQ)2.- Dynamic nuclear polarization in TTF-TCNQ and K. TCNQ.- Electrical and magnetic properties of complexes of 2,2?,6,6?-tetramethyl--4,4?-bipyrylene (TMBP) and 2,2?,6,6?--tetramethyl-4,4?-bithiopyrylene (TMBTP) with hexacyanobenzene (HCNB).- Intensities of the infrared absorption in TCNQ salts.- Triplet excitons in simple TCNQ salts.- Interchain coupling and disorder in complex tcnq salts with aromatic donors.- TCNQ salts with symmetric and asymmetric donors.- Investigations of high conductivity of dipyranylidene and dithiadipyranylidene - TCNQ complexes.- Electronic properties of organic and polymeric metals.- Electronic structure and optical properties of polysulfur nitride, (SN)x.- Acoustic phonons of polymeric sulfur nitride, (SN)x.- X-ray and ultraviolet photoemission of polymeric sulfur nitride (SN)x.- Superconducting properties of (SN)x.- Quantum chemical studies on (SN)x.- Galvanomagnetic effects in polymeric sulfur nitride, (SN)x.- Experimental evidence for solitary-wave excitations in GCP.- Synthesis of linear chain transition metal complexes.- Phonon-assisted mobilities in organic molecular crystals (anthracene).- On the possible mechanisms of conductivity in biopolymers and charge transfer molecular crystals.- On the conductivity of some organic dyes.

Organic semiconductor heat sensitive material

Abstract: PURPOSE:To obtain heat sensitive material having PTC property and high hysteresis temperature, by using specific tetra-cyanoquino-ji methane (TCNQ) compound.