6 results about "Rhodamine 6G" patented technology

The application relates to a surface enhanced Raman detection technology, in particular to a spherical composite SERS substrate and a preparation method and application thereof. The method comprises the following steps: adopting a micro flow injection pump to drop a solution containing silver nanowires and gold nanorods into liquid nitrogen, and then performing freeze drying; wherein, a gun head of the micro flow injection pump is a hydrophobic gun head; the concentration of the silver nanowires in the solution containing the silver nanowires and the gold nanorods is 15-40 mg / mL. The spherical composite SERS substrate prepared by the method has a spherical structure formed by silver nanowires and metal nanorods, the spherical skeleton structure is formed by interweaving silver nanowires into a net, and the metal nanorods are loaded on the silver nanowires, and the spherical composite SERS substrate can realize detection of rhodamine 6G without introducing a modifier.

The application belongs to the field of organic chemistry, material science and corrosion engineering, and discloses synthesis and application of a corrosion inhibitor based on rhodamine 6G. The fluorescent corrosion inhibitor LDS is obtained by synthesizing rhodamine 6G and hydrazine hydrate through a Schiff base reaction and salicylaldehyde. The corrosion inhibitor LDS not only has an inhibiting effect on carbon steel, but also can realize detection functions of corrosion iron ions and environment pH through a fluorescent signal, and further early warning of metal corrosion.

This invention relates to the field of X-ray imaging technology and discloses an X-ray imaging scintillator screen based on chiral perovskite nanocrystals and its fabrication process. The screen comprises: a flexible transparent substrate made of polyethylene terephthalate or polyimide film; a chiral perovskite nanocrystal composite layer; an inorganic oxide protective layer composed of SiO₂ or Al₂O₃; and a composite reflective layer comprising: a TiO₂ nanorod array layer located on the substrate surface; and a reflectance enhancement layer doped with 1-10 vol% rhodamine 6G or coumarin derivatives covering the surface of the TiO₂ nanorod array layer. By using a high-transmittance, low-roughness polyester or polyimide material on the flexible transparent substrate, combined with the surface-grown TiO₂ nanorod array and chiral perovskite nanocrystal composite layer, the light reflection efficiency and imaging contrast are significantly improved. Furthermore, the optimized light extraction path, achieved through a microprism structure, enhances the efficiency of X-ray conversion to visible light.

The application discloses an artificial light capturing system and a construction method and application thereof, and belongs to the technical field of agricultural light regulation and functional materials, wherein the artificial light capturing system comprises a donor and an acceptor, the donor is a complex formed by a compound DBI and a metal cation, and the acceptor is a fluorescent dye capable of receiving the energy of the donor and emitting fluorescence. The application constructs the artificial light capturing system by taking the complex formed by the small-molecule compound DBI and the metal cation as the donor and taking rhodamine 6G as the acceptor, and has the characteristics of simple synthesis, low cost, excellent light conversion capacity (converting short-wavelength light into long-wavelength light) and adjustable donor-acceptor ratio; the artificial light capturing system is used for preparing a light conversion film, and can promote the growth of legume plants such as Dutch beans.

This invention relates to the field of room temperature phosphorescent coating technology, specifically to the preparation and visual anti-counterfeiting application of a cellulose-based long-life room temperature phosphorescent carbon quantum dot composite coating. The preparation method of the room temperature phosphorescent carbon quantum dot composite coating uses cellulose as the carbon source and rhodamine 6G, rhodamine B, sulfonyl rhodamine B, or riboflavin as the nitrogen source, to prepare carbon quantum dots through a hydrothermal reaction in an aqueous medium. After purification, the obtained carbon quantum dots are heat-treated with boric acid to obtain boric acid-modified carbon quantum dot powder. This powder is then compounded with sodium lignosulfonate and an aqueous acrylic emulsion to obtain a cellulose-based long-life room temperature phosphorescent carbon quantum dot composite coating. The coating can be applied by brushing, rolling, or spraying to form a room temperature phosphorescent coating, exhibiting adjustable color, long average phosphorescence lifetime, and excellent resistance to ultraviolet aging.