摘要:
Organic semiconductor solution contains a polyacene compound and a solvent where >=1 part can dissolve the polyacene compound. The polyacene compound-soluble solvent is an aromatic halogenated hydrocarbon, aliphatic halogenated hydrocarbon, aromatic hydrocarbon, lactone compound and/or carbonate compound. Independent claims are included for: (1) an organic semiconductor thin film containing the polyacene compound; (2) the manufacture of this thin film by doping electron donating atoms or electron receiving atoms which can form a charge transfer complex with the polyacene compound into the organic semiconductor thin film formed by vaporizing the solvent from the solution; (3) an organic semiconductor element; (4) a transistor composed by the organic semiconductor film; (5) the manufacture of the organic semiconductor element; (6) a display device having many pixels including the semiconductor elements or transistors; and (7) the manufacture of the display device.
摘要:
A huge single crystal of a complex, such as an organic carboxylic acid metal complex, which is useful as, e.g., an adsorbent for various gases and vapors of organic solvents or a hydrogen-occluding material; and a process for producing the single crystal. A two-layer system is formed which is composed of an upper layer which is either a solution comprising a metal salt and an organic carboxylic acid having a conjugated system or a solution of a metal salt of an organic carboxylic acid having a conjugated system and a lower layer which is a solvent immiscible with the solvent of that solution. The vapor of (substituted) pyrazine generated from a solution of (substituted) pyrazine is introduced into the upper-layer solution in that state to cause a reaction and thereby yield a single crystal of a complex of the organic carboxylic acid with the metal at the interface between the two layers. Thus, a single crystal of the organic carboxylic acid metal complex is grown to a huge size of 0.8 mm or larger in terms of longer-side length.
摘要:
The method for producing a piece made of sintered silica comprises the following steps: a) casting a slurry, which is based on an amorphous silica powder and on a liquid, between the inner (14) and outer (12) parts of a mold (10) in such a manner as to delimit a wall (38) of said piece (40); b) evacuating, at least in part, the liquid; c) removing the piece from the mold whereby obtaining a green piece; d) additionally drying the green piece, and; e) sintering the green piece. This method is characterized in that in step b), the solvent is evacuated through a single inner (14) and outer (12) part of the mold (10) in at least one are delimiting a useful portion of the wall (38), the impermeable part having a deformable lining (30).
摘要:
The present invention provides an improved process for preparing modafinil, whereby it may be isolated in high purity by a single crystallization. The process produces modafinil free of sulphone products of over-oxidation and other byproducts. The invention further provides new crystalline Forms II-VI of modafinil and processes for preparing them. Each of the new forms is differentiated by a unique powder X-ray diffraction pattern. The invention further provides pharmaceutical compositions containing novel modafinil Forms II-IV and VI.
摘要:
The short-pulse laser light 9 emitted from the short-pulse laser light source 1 is focused on and caused to irradiate an organic crystal 8 contained in a sample container 6 via a shutter 2, intensity adjusting element 3, irradiation position control mechanism 4, and focusing optical system 5. The sample container 6 is carried on a stage 7, and can be moved in three dimensions along the x axis, y axis and z axis in an x-y-z orthogonal coordinate system with the direction of the optical axis being taken as the z axis; furthermore, the sample container 6 can be rotated about the z axis. Working of the organic crystal 8 is performed by means of short-pulse laser light that is focused on and caused to irradiate the surface of the organic crystal 8. Prior to working, nitrogen is caused to jet onto the sample container 6 by a low-temperature gas jet device C that is a cooling device; consequently, the organic crystal 8 is cooled to -150°C or below. As a result, it is possible to work the object of working in a fixed state, and to increase the working efficiency by means of the short-pulse laser light that is used.
摘要:
Noble crystal of 4-dimethylamino-4-stilbazolium tosylate (DAST) useful as an electro-optical element. DAST with a size effective for use as an electro-optical element could be provided by a twin crystal of DAST. The twin crystal of DAST could be obtained according to the seed crystallization method or slant crystal growing method.
摘要:
Comprising a first step of supporting a substrate formed with a scintillator on at least three protrusions of a target-support element disposed on a vapor deposition table so as to keep a distance from said vapor deposition table; a second step of introducing said vapor deposition table having said substrate supported by said target-support element into a vapor deposition chamber of a CVD apparatus; and a third step of depositing an organic film by CVD method onto all surfaces of said substrate, provided with said scintillator, introduced into said vapor deposition chamber.
摘要:
This invention relates to a novel system for making uniform crystals. The system, by virtue of the nature of its crystal product, is useful in various chemical, pharmaceutical, agricultural, and biotechnology applications. The invention features physically separated and controlled crystal nucleation and growth zones useful in industrially scaled crystallization processes. The invention also provides a method to preferentially nucleate and crystallize a desired category of crystal structure (enantiomer, solvate, polymorph) of non-chiral and chiral compounds.
摘要:
A method of organic deposition comprises a first step of supporting a substrate on which a scintillator is formed using at least three sample support needles rising from a turntable, a second step of introducing the turntable supporting the substrate into a CVD chamber, and a third step of depositing organic CVD film over the entire surface of the substrate including the scintillator formed on it.