4 results about "Carbon group" patented technology

To provide a photoresponsive material that solves at least one of the problems of conventional technology. [Solution] The material has a crystalline structure formed by crosslinking at least one lanthanide with an organic group having 1 to 3 carbon atoms, wherein the organic group contains at least carbon atoms which may be partially or entirely substituted with other nonmetallic carbon group elements, and oxygen atoms which may be partially or entirely substituted with other nonmetallic oxygen group elements. A photoresponsive material having a peak component in the range of 533 eV to 534 eV in the O1s spectrum obtained by hard X-ray photoelectron spectroscopy.

The present invention discloses a method for preparing a hollow graphene@Group IVA oxide composite material, comprising the following steps: S1: mixing a template and phthalocyanine; S2: pyrolyzing the material obtained in step S1 at high temperature, followed by cooling to room temperature; S3: adding an alcohol solvent and a surfactant to the material obtained in step S2, mixing them uniformly, then adding a carbon group element source and stirring, and then adding water for hydrolysis, washing the reaction product with an organic solvent and drying to obtain a composite powder; S4: pyrolyzing the composite powder in step S3, followed by washing and drying to obtain the hollow graphene@Group IVA oxide composite material. The composite material can be used to prepare a porous negative electrode material for lithium-ion batteries, exhibiting good electrochemical performance in a half-cell and effectively mitigating the volume expansion of tin dioxide and silicon oxide during charge and discharge.

An organic electroluminescent element (1) has an anode (3), a cathode (4), a first light-emitting layer (51), and a second light-emitting layer (52) disposed between the first light-emitting layer (51) and the cathode (4). The first light-emitting layer (51) contains a first compound having at least one group represented by the following general formula (11) as a first host material, and the second light-emitting layer (52) contains a second compound represented by the following general formula (2) as a second host material. The first light-emitting layer (51) and the second light-emitting layer (52) are directly connected. 101 Ar is a single bond or a substituted or unsubstituted cyclic aryl group with 6 to 50 carbon atoms. 101 The aryl group is a substituted or unsubstituted cyclic carbon group with 6 to 50 carbon atoms, and mx is 0, 1, 2, 3, 4 or 5.

Provided in the present disclosure are a core-shell quantum dot and a preparation method therefor, and a quantum dot device. The core-shell quantum dot comprises a quantum dot core and a first shell layer structure that coats the outer surface of the quantum dot core, wherein the first shell layer structure is zero-dimensional perovskite, and has a chemical formula of A4BX6, where A comprises at least one of an amine organic group and an inorganic metal, B is a carbon group element, and X is a halogen element.