摘要:
The production of photocatalytic color switching of redox imaging nanomaterials for rewritable media is disclosed. The new color switching system is based on photocatalytic redox reaction enabling reversible and considerably fast color switching in response to light irradiation. In accordance with an exemplary embodiment, the color switching system can include a photocatalyst and an imaging media. With the assistance of photocatalyst, UV light irradiation can rapidly reduce the redox imaging nanomaterials accompany with obvious color changing, while the resulting reduced system can be switched back to original color state through visible light irradiation or heating in air condition. The excellent performance of the new color switching system promises their potential use as an attractive rewritable media to meet increasing needs for sustainability and environmental protection.
摘要:
Die Erfindung betrifft einen optischen Aufzeichnungsträger vom Reflexionstyp, wobei die das Licht absorbierende Schicht als den das Licht absorbierenden Stoff Polypyrrol enthält.
摘要:
Method of forming patterns utilizing a photosensitive chalcogenide thin film comprising a lamination layer of amorphous chalcogenide thin film (2) and silver thin film (3). The amorphous chalcogenide thin film (22) of regions which are not exposed to light (6) or an accelerated particle beam and consequently are not doped with silver are removed by means of plasma etching with fluorine gas. According to this process, desired patterns of the amorphous chalcogenide thin film (21) doped with silver are left on a substrate. The remaining patterns are used as an etching mask to form the desired patterns on a substrate layer by a plasma etching method by removing a substrate layer (1 C).
摘要:
A composition for use in constructing a photosensitive film (10) for recording an image. The composition comprises first, second, and third particles (12-14). Each particle type comprises a crystalline base material having a trap dopant and a color dopant deposited therein. Each color dopant has a different spectral sensitivity. In one embodiment, each of the trap dopants has a different activation energy for releasing electrons traps therein into the conduction band of the crystalline base material. In another embodiment, the base material is applied as a thin film and the dopant atoms (101-103) deposited therein in a pattern provide the equivalent of the three particle types (100-112).
摘要:
The manufacture of printed circuit boards on substrate material with a thermosetting adhesive layer. The adhesive layer is roughened by spraying with a suspension of hard particles. Thereafter the surface is provided with a layer of uniformly distributed particles of a light-sensitive, semiconductive metal oxide by spraying with a suspension of said oxide particles, which oxide after exposure to light is capable of releasing copper and / or a metal which is nobler than copper from a solution of the relevant metal salt the layer is exposed to light and is sprayed prior to and/or after the exposure with a solution of the afore-said metal salt, so that metal nuclei are formed in the exposed areas. Both operations are effected by spraying and that in such a way that the semiconductive oxide and the metal salt, respectively are substantially dry when they reach the surface. After exposure, the nuclei are intensified by means of an electroless copper plating bath. The method may be a semi-additive or an additive method. The invented method makes it possible to manufacture products which are free from blisters in the copper pattern, in holes through the printed circuit board.
摘要:
The manufacture of printed circuit boards on substrate material with a thermosetting adhesive layer. The adhesive layer is roughened by spraying with a suspension of hard particles. Thereafter the surface is provided with a layer of uniformly distributed particles of a light-sensitive, semiconductive metal oxide by spraying with a suspension of said oxide particles, which oxide after exposure to light is capable of releasing copper and / or a metal which is nobler than copper from a solution of the relevant metal salt the layer is exposed to light and is sprayed prior to and/or after the exposure with a solution of the afore-said metal salt, so that metal nuclei are formed in the exposed areas. Both operations are effected by spraying and that in such a way that the semiconductive oxide and the metal salt, respectively are substantially dry when they reach the surface. After exposure, the nuclei are intensified by means of an electroless copper plating bath. The method may be a semi-additive or an additive method. The invented method makes it possible to manufacture products which are free from blisters in the copper pattern, in holes through the printed circuit board.
摘要:
A holographic recording medium comprising an amorphous host material which undergoes a phase change from a first to a second thermodynamic phase in response to a temperature rise above a predetermined transition temperature; a plurality of photo-sensitive molecular units embedded in the host material and which can be orientated in response to illumination from a light source; whereby said molecular units may be so orientated when said host material is at a temperature equal to or above said transition temperature but retain a substantially fixed orientation at temperatures below said transition temperature.