54 results about "Ionic crystal" patented technology

The present invention describes nanophotonic materials and devices for both classical and quantum optical signal processing, transmission, amplification, and generation of light, which are based on a set of quantum systems having a discrete energy levels, such as atoms, molecules, or quantum dots, embedded in a frequency bandgap medium, such as artificial photonic crystals (photonic bandgap materials) or natural frequency dispersive media, such as ionic crystals, molecular crystals, or semiconductors, exhibiting a frequency (photonic) bandgap for propagating electromagnetic modes coupled to optical transitions in the quantum systems. If the frequency of one of optical transitions, called the working transition, lies inside the frequency bandgap of the medium, then spontaneous decay of the working transition into propagating photon modes is completely suppressed. Moreover, the excitation of the working transition and a photon form a photon-quantum system bound state lying inside the photonic bandgap of the medium, in which radiation is localized in the vicinity of the quantum system. In a quantum system “wire” or a quantum system “waveguide”, made of spatially disordered quantum systems, or in a chain quantum system waveguide made of a periodically ordered identical quantum systems, wave functions of the photon-quantum system bound states localized on different quantum systems overlap each other and develop a photonic passband lying inside bandgap of the photonic bandgap medium.

The invention provides a thin film device where ionic crystals are epitaxially grown on a Si single crystal substrate through a proper buffer layer, and its for fabrication method. A ZnS layer is first deposited on a Si single crystal substrate. Ionic crystal thin films (an n-GaN layer, a GaN layer, and a p-GaN layer) are deposited thereon. The ZnS thin film is an oriented film excellent in crystallinity and has excellent surface flatness. When ZnS can be once epitaxially grown on the Si single crystal substrate, the ionic crystal thin films can be easily epitaxially grown subsequently. Therefore, ZnS is formed to be a buffer layer, whereby even ionic crystals having differences in lattice constants from Si can be easily epitaxially grown in an epitaxial thin film with few lattice defects on the Si single crystal substrate. The characteristics of a thin film device utilizing it can be enhanced.

The invention relates to microcrystalline glass with a hydrophobic and oleophobic composite coating on the surface as well as a preparation method and application of the microcrystalline glass, and the coated glass is microcrystalline glass or glass ceramic with a hydrophobic and oleophobic composite coating on the surface. The coated microcrystalline glass is characterized in that from the outermost surface of the glass, the microcrystalline glass comprises a hydrophobic and oleophobic layer, a middle layer, a priming layer and microcrystalline glass body or glass ceramic, the middle layer is formed by ionic crystals with the lattice energy of 700-3000kJ / mol, and the priming layer comprises a compound containing Si-O bonds or a mixed silicon oxide layer. According to the invention, a firm, durable and excellent-performance hydrophobic and oleophobic coating can be formed even if a coating interface of the microcrystalline glass has a few Si-O structures, and excellent hydrophobicity and oleophobicity can be generated no matter whether ion exchange is carried out on high-crystallinity glass or not.

The invention relates to solid electrolyte for a dye sensitization solar battery based on ion crystal. The solid electrolyte comprises the following components by weight percent: 70 to 90 percent of ion crystal, 5 to 15 percent of elemental iodine and 5 to 15 percent of additives, wherein the chemical structural formula of the ion crystal is as follows, s is an integer of 1 to 12, and q is an integer of 0 to 5. The electrolyte is solid, so that the leakage problem in the application process can be effectively overcome, and the high stability of the dye sensitization solar battery can be maintained; and meanwhile, cyan biphenylyl groups are introduced in the ion crystal, so that the light scattering phenomenon can be increased, and high battery performance and photoelectric conversion efficiency can be maintained.

The invention discloses a method used for increasing the stability of a water phase quantum dot. According to the method, an ionic liquid and the water phase quantum dot are subjected to ligand exchange so as to obtain a modified quantum dot ionic liquid, wherein the boiling point of the obtained modified quantum dot ionic liquid is high, is usually higher than 200 DEG C, and the stability of the modified quantum dot ionic liquid is always better than that of small molecular ligands, such as mercaptoacetic acid, mercaptopropionic acid, and glutathione, used for conventional water phase quantum dot preparation. The ligand exchange of the ionic liquid with the water phase quantum dot is adopted, so that the ionic liquid is converted into a quantum dot coated by a ligand, and the stability of single quantum dot is improved; the ionic liquid is an ionic crystal, an inorganic salt crystal is also ionic crystal, the ionic liquid modified quantum dot is capable of matching growth process of inorganic salt crystal, after mixing with inorganic salt, agglomeration among quantum dot is not easily caused, and uniform dispersed solid state quantum dot with high stability is obtained; the particle size of the solid state quantum dot can be adjusted via grinding, so that solid state quantum dot of different optical properties can be obtained.