摘要:
There is provided a fluoride phosphor composite including: fluoride phosphor core particles that may be expressed by the empirical formula AxMFy:Mn4+, wherein A may be at least one selected from the group consisting of Li, Na, K, Rb, and Cs, M may be at least one selected from the group consisting of Si, Ti, Zr, Hf, Ge, and Sn, the composition ratio (x) of A may satisfy 2≦x≦3, the composition ratio (y) of F may satisfy 4≦y≦7, each fluoride phosphor composite particle may be coated with a Mn-free fluoride coating. The Mn-free fluoride coating may have a thickness less than or equal to 35% of the size of each fluoride phosphor composite particle.
摘要:
A method of manufacturing a fluoride phosphor, the method comprising: preparing a hydrofluoric (HF) solution in which a first source material and a fluoride containing Mn4+ are dissolved; and forming fluoride particles by introducing a second source material to the HF solution in each of a plurality of instances.
摘要:
A fluoride phosphor may include: a fluoride represented by a composition formula: AxMFy:Mnz4+, where A is at least one selected from among Li, Na, K, Rb, and Cs, M is at least one selected from among Si, Ti, Zr, Hf, Ge and Sn, a composition ratio (x) of A satisfies 2≦x≦3, a composition ratio (y) of F satisfies 4≦y≦7, and a composition ratio (z) of Mn satisfies 0
摘要:
A fluoride phosphor includes fluoride particles represented by AxMFy:Mnz4+ where A is at least one selected from lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs), M is at least one selected from silicon (Si), titanium (Ti), zirconium (Zr), hafnium (Hf), germanium (Ge) and tin (Sn), a compositional ratio x of A satisfies 2≦x≦3, and a compositional ratio y of F satisfies 4≦y≦7; and an organic material physically adsorbed onto surfaces of the fluoride particles to allow the fluoride particles to have hydrophobicity. The fluoride particles have a concentration of Mn4+ gradually reduced from respective centers to respective surfaces of the fluoride particles.
摘要:
There is provided a method of manufacturing a light emitting device which includes preparing a light emitting element emitting excitation light and a substrate on which the light emitting element is disposed. A fluoride phosphor is provided to absorb excitation light emitted from the light emitting element to emit visible light, and is represented by Chemical Formula (1). The fluoride phosphor is disposed on at least one of the light emitting element and the substrate, wherein Chemical Formula (1): AxMFy:Mn4+ (wherein 2≦x≦3 and 4≦y≦7, A is at least one element selected from the group consisting of Li, Na, K, Rb, and Cs, and M is at least one element selected from the group consisting Si, Ti, Zr, Hf, Ge, and Sn).
摘要:
There is provided a method of manufacturing a light emitting device which includes preparing a light emitting element emitting excitation light and a substrate on which the light emitting element is disposed. A fluoride phosphor is provided to absorb excitation light emitted from the light emitting element to emit visible light, and is represented by Chemical Formula (1). The fluoride phosphor is disposed on at least one of the light emitting element and the substrate, wherein Chemical Formula (1): AxMFy:Mn4+ (wherein 2≦x≦3 and 4≦y≦7, A is at least one element selected from the group consisting of Li, Na, K, Rb, and Cs, and M is at least one element selected from the group consisting Si, Ti, Zr, Hf, Ge, and Sn).
摘要:
A solenoid valve for a slip control system in a vehicle is disclosed. A flow passage is provided in which working fluid such as oil that generates a break hydraulic pressure flows from the side of a solenoid valve through a filter, flows to the front of a plunger through a side hole formed in a valve body of the solenoid valve, and then flows along the side of valve body, that is, is discharged out of an outlet through a side space between valve body and a valve seat. Therefore, linear pressure control is easy because working fluid flows into toward the front of valve plunger through a side inlet of solenoid valve and the entire size is reduced because a special channel for guiding working fluid to the front of the valve plunger is not needed in a pump housing case.
摘要:
A breaking hydraulic circuit for linear pressure reduction of a front/rear wheel breaking liquid pressure in a vehicle includes a liquid pressure return line formed between wheel cylinders and a master cylinder, and a two-system liquid pressure control circuit separately passing liquid pressures to be discharged from the wheel cylinders and then unifies the liquid pressures. The breaking hydraulic circuit has normal open type solenoid valves and normal close type solenoid valves. In the breaking hydraulic circuit, linear control of a front/rear wheel breaking liquid pressure is realized at a time of implementation of ABS (Antilock Brake System) or TCS (Traction Control System), and a difference in pressure intensification gradient according to a difference in generation time between the front and rear wheels is eliminated.