Samsung Electronics Co., Ltd.

Ji Ho You

Tae Hoon Kim

Jong Won Park

Chul Soo Yoon

In Hyung Lee

Chi Woo Lee

Woon Seok Kim

Chan Suk Min

Jeong Rok Oh

There is provided a fluoride phosphor composite including: fluoride phosphor core particles that may be expressed by the empirical formula AMF:Mn, 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&#x2264;x&#x2264;3, the composition ratio (y) of F may satisfy 4&#x2264;y&#x2264;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.

Fluoride phosphor composite, method of manufacturing fluoride phosphor composite, white light emitting apparatus, display apparatus, lighting device, and electronic device

A fluoride phosphor includes fluoride particles represented by AMF:Mnwhere 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&#x2264;x&#x2264;3, and a compositional ratio y of F satisfies 4&#x2264;y&#x2264;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 Mngradually reduced from respective centers to respective surfaces of the fluoride particles.

Fluoride phosphor, method of manufacturing the same, and light emitting device

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 Mnare dissolved; and forming fluoride particles by introducing a second source material to the HF solution in each of a plurality of instances.

Method of manufacturing fluoride phosphor, white light emitting apparatus, display apparatus, and lighting device

A fluoride phosphor may include: a fluoride represented by a composition formula: AMF:Mn, 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&#x2266;x&#x2266;3, a composition ratio (y) of F satisfies 4&#x2266;y&#x2266;7, and a composition ratio (z) of Mn satisfies 0&#x3c;z&#x2266;0.17.

Fluoride phosphor and light emitting device, and methods of manufacturing the same

There is provided a fluoride phosphor composite including: fluoride phosphor core particles that may be expressed by the empirical formula AMF:Mn, 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&#x2266;x&#x2266;3, the composition ratio (y) of F may satisfy 4&#x2266;y&#x2266;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.

Growing community of inventors

Seoul, South Korea

Ji Ho You