243results about "Lead organic compounds" patented technology

Silane compounds as a constituent material of luminescent device are described, which are represented by formula (1), luminescent device materials which comprise said compounds and luminescent devices which comprise said materials to acquire high luminous efficiency and high durability:wherein R1 represents an alkyl group, an aryl group, a heteroaryl group or an alkynyl group, and each of Ar11, Ar12 and Ar13 represents a heteroaryl group.

This invention provides a class of androgen receptor targeting agents (ARTA). The agents define a new subclass of compounds, which are selective androgen receptor modulators (SARM). Several of the SARM compounds have been found to have an unexpected androgenic and anabolic activity of a nonsteroidal ligand for the androgen receptor. Other SARM compounds have been found to have an unexpected antiandrogenic activity of a nonsteroidal ligand for the androgen receptor. The SARM compounds, either alone or as a composition, are usefull for a) male contraception; b) treatment of a variety of hormone-related conditions, for example conditions associated with Androgen Decline in Aging Male (ADAM), such as fatigue, depression, decreased libido, sexual dysfunction, erectile dysfunction, hypogonadism, osteoporosis, hair loss, anemia, obesity, sarcopenia, osteopenia, osteoporosis, benign prostate hyperplasia, alterations in mood and cognition and prostate cancer; c) treatment of conditions associated with Androgen Decline in Female (ADIF), such as sexual dysfunction, decreased sexual libido, hypogonadism, sarcopenia, osteopenia, osteoporosis, alterations in cognition and mood, depression, anemia, hair loss, obesity, endometriosis, breast cancer, uterine cancer and ovarian cancer; d) treatment and/or prevention of acute and/or chronic muscular wasting conditions; e) preventing and/or treating dry eye conditions; f) oral androgen replacement therapy; and/or g) decreasing the incidence of, halting or causing a regression of prostate cancer.

The invention provides a coordination polymer material with a multistage pore passage structure and a preparation method thereof. The coordination polymer material with a multistage pore passage structure is internally provided with the multistage pore passage structure, the multistage pore passage structure is a microporous and/or mesoporous and/or macroporous multistage pore passage structure which is formed by the self assembly between the metal ion and the organic ligand, the apertures of the micropores are less than or equal to 2nm, the apertures of the mesopores are from 2nm to 50nm, and the apertures of the macropores are more than 50nm. The coordination polymer material with a multistage pore passage structure is large in specific surface, the large-size organic ligand does not need to be synthesized, and the coordination polymer material with larger porous sizes can be obtained without the template agent and the pore assisting agent, so that the invention is simple in preparation method, and low in cost.

The invention discloses an azotetrazole-based energetic compound with the composition of M(ATZ)(L)n question mark mH2O, wherein, M refers to Mn, Co, Ni, Cu, Zn or Pb; ATZ refers to 5, 5'-azotetrazole ion, L refers to 1, 10-o-phenanthroline or 2, 2'-dipyridyl, n refers to 1 or 2, and m refers to an integer or a decimal between 0 and 10. In the invention, the 1, 10-o-phenanthroline or the 2, 2'-dipyridyl is introduced into the M(ATZ) as an ancillary ligand to obtain a novel compound, thus integrating the characteristics of high efficiency, insensibility and environmental protection of a catalyst on the premise of the combustibility improvement of composite propellants. The azotetrazole-based energetic compound has the advantages of simple preparation method and accessible raw materials.

A metal compound represented by general formula (I):

wherein R¹, R², R³, and R⁴ each represent an alkyl group having 1 to 4 carbon atoms; A represents an alkanediyl group having 1 to 8 carbon atoms; M represents a lead atom, a titanium atom or a zirconium atom; n represents 2 when M is a lead atom or 4 when M is a titanium or zirconium atom. The metal compound has a low melting point and is therefore deliverable in a liquid state, has a high vapor pressure and is therefore easy to vaporize, and, when mixed with other metal compound, undergoes no denaturation due to a chemical reaction. The metal compound is suitable as a material of thin film formation processes involving vaporization of a metal compound, such as CVD.

The invention discloses a conjugated ligand-based perovskite quantum dot, and a preparation method and an application thereof. The perovskite quantum dot comprises an organic conjugated ligand and a perovskite quantum dot main body from outside to inside; the molecule of the organic conjugated ligand is an organic amine molecule having an all-conjugated structure; and the composition of the perovskite quantum dot is ABX3. Electrons in the organic all-conjugated molecule have delocalization characteristics, and the mobility of the electrons in the conjugated system is significantly higher than the mobility of the electron only existing in covalent single-bonded long chain molecules, so the mobility of carriers in a whole perovskite quantum dot luminescence layer is improved, and the improvement of the luminous efficiency is promoted.

A binuclear organometallic complex enabling highly efficient phospholuminescence and an organic electroluminescent device using the same. The binuclear organometallic complex, which can be suitably used to form an organic layer of an organic electroluminescent device, produces luminescence in the wavelength range of 430-650 nm, and induces white electroluminescence when combined with green and red luminescent materials.

Provided is a precursor of an inorganic/organic hybrid perovskite compound, and the precursor of the precursor of the inorganic/organic hybrid perovskite compound according to an exemplary embodiment of the present invention includes an organic positive ion, a metal positive ion, a halogen negative ion, and a guest molecule (GM).

The invention relates to a method for preparing a 2D perovskite quantum well film with a high gain property. The method comprises the following steps: dissolving AX and PbX2 into a precursor solvent according to a mole ratio of 2 to 1, performing heating ultrasonic treatment till the solids are completely dissolved so as to obtain a precursor solution of 2D perovskite A2PbX4; dissolving BX and PbX2 into the precursor solvent according to the identical mole ratio so as to obtain a precursor solution of 3D perovskit BPbX3; performing isopyknic mixing on the two precursor solutions of perovskit according to a mole ratio of 1 to n-1 so as to obtain a precursor solution of a 2D perovskite quantum well material; dropping the precursor solution of the 2D perovskite quantum well material onto a substrate by using a pipette, and after the solution spreads off and is retained for 2-10 minutes on the substrate, performing spinning filming, removing the precursor solvent, so as to obtain the 2D perovskite quantum well film. By adopting the method, the optical and thermal stability and the gain properties of the 2D perovskite quantum well film can be improved.

A method for making a carbon nanotube metal composite includes the following steps. A number of carbon nanotubes is dispersed in a solvent to obtain a suspension. Metal powder is added into the suspension, and then the suspension agitated. The suspension containing the metal powder is allowed to stand for a while. The solvent is reduced to obtain a mixture of the number of carbon nanotubes and the metal powder.

Provided are an organic-inorganic-hybrid perovskite nanocrystal particle light-emitter having a two-dimensional structure, a method for producing the same, and a light emitting device using the same. The organic-inorganic-hybrid perovskite nanocrystal particle light-emitter having a two-dimensional structure comprises an organic-inorganic-hybrid perovskite nanocrystal structure having a two-dimensional structure which can be dispersed in an organic solvent. Accordingly, the nanocrystal particle light-emitter comprises an organic-inorganic-hybrid perovskite nanocrystal having a crystal structure combining FCC and BCC; forms a lamellar structure where organic planes and inorganic planes are accumulated in an alternating manner; and can exhibit high color purity by confining excitons in the inorganic planes. In addition, since the exciton diffusion distance decreases and exciton binding energy increases, it is possible to prevent exciton annihilation caused by thermal ionization and delocalization of charge carriers, such that the nanocrystal particle light-emitter can have high luminescence efficiency at room temperature.

The present invention relates to methods for preparing sensitized solar cells using organic-inorganic perovskites as sensitizers.

The invention relates to a metal organic framework material based on lead nitrate and application thereof. The technical scheme is that metal salt Pb(NO3)2, ligand H4BPTC and a solvent N,N-dimethylacetamide are placed in a container, ultrasonic oscillation is performed until the metal salt and the ligand are evenly scattered into the solvent; the solvent is sealed and then placed in an oven to stand for 72 h at 85 DEG C, white cube blocky crystal is obtained, washed, filtered and dried, and a target product is obtained. A method for preparing the metal organic framework material is simple, the metal organic framework material is stable in structure and has a good three-dimensional pore structure, the silicon cyanation can be catalyzed efficiently, reaction substrate aromatic aldehyde has size selectivity, and the catalytic reaction is performed on the anhydrous and oxygen-free conditions.

Metal halide perovskite crystals, composite materials that include metal halide perovskite crystals and a polymeric matrix material, devices that include metal halide perovskite crystals, and methods of forming metal halide perovskite crystals, composite materials, and devices. The devices may include optoelectronic devices, such as light-emitting diodes. The light-emitting diodes may emit red light.

The present invention relates to a process for producing a layer of a crystalline material, which process comprises disposing on a substrate: a first precursor compound comprising a first cation and a sacrificial anion, which first cation is a metal or metalloid cation and which sacrificial anion comprises two or more atoms; and a second precursor compound comprising a second anion and a second cation, which second cation can together with the sacrificial anion form a first volatile compound. The invention also relates to a layer of a crystalline material obtainable by a process according to the invention. The invention also provides a process for producing a semiconductor device comprising a process for producing a layer of a crystalline material according to the invention. The invention also provides a composition comprising: (a) a solvent; (b) NH₄X; (c) AX; and (d) BY₂ or MY₄; wherein X, A, M and Y are as defined herein.