4 results about "Ionic crystal" patented technology

A method for manufacturing a perovskite quantum dot composite material that easily forms core-shell particles through a one-stage synthesis step is provided, along with the perovskite quantum dot composite material and an ink containing the perovskite quantum dot composite material. This perovskite quantum dot composite material suppresses surface defects of the perovskite quantum dots by forming an ionic crystal layer comprising halides in the shell layer and exhibits a very high PLQY (Power Level Quality). The perovskite quantum dot composite material comprises core particles and a shell layer surrounding the core particles. The core particles are composed of metal halide perovskites, and the shell layer comprises an organic halide compound with an ionic crystal structure having the same halogen composition as the core particles. The PLQY is greater than 75%, and the change in emission wavelength is less than 5 nm over a period of 10,000 minutes at room temperature.

A wave gear device (1) is lubricated with non-hydrophobized powder (10A) enclosed in an internal space (9) before the end of running-in (aging), and the non-hydrophobized powder (10A) forms a firm lubricating film by transferring and adhering to each contact surface of the contact portions (B, C). During load running, the wave gear device (1) is lubricated with hydrophobized powder (10B) enclosed in the internal space (9) instead of the non-hydrophobized powder (10A). The powders (10A, 10B) used are powders of ionic crystal compounds (MoS2, WS2, etc.) having a layered crystal structure. By lubricating the wave gear device (1) during load running with the hydrophobized powder (10B), temporary efficiency reduction at the start of running can be suppressed, and stable running of the wave gear device (1) can be maintained.

A composite electrolyte comprising an inorganic solid electrolyte and a plastic ionic crystal containing an alkali metal ion.

The application provides a crystal structure high-throughput design method based on molecular or ion configuration, which comprises the following steps: obtaining candidate ion structure data and performing quantum chemistry calculation and electrostatic potential analysis, combining ion crystal density empirical formula calculation to predict the crystal density, and screening ion combinations with high predicted density; further generating multiple initial crystal structure models based on space group theory and Wyckoff position symmetry analysis, and realizing efficient optimization of the crystal structure through two-level optimization steps of pre-optimization by a machine learning potential model and fine optimization by first principles; and performing bonding state analysis, protonation phenomenon detection and energy and density data extraction on the optimized structure, and screening the crystal structure meeting the performance index, so as to solve the problem that it is difficult to efficiently screen and generate high-density metastable crystal structures.