18394693. METHOD OF PRODUCING NITRIDE FLUORESCENT MATERIAL AND NITRIDE FLUORESCENT MATERIAL simplified abstract (NICHIA CORPORATION)
Contents
METHOD OF PRODUCING NITRIDE FLUORESCENT MATERIAL AND NITRIDE FLUORESCENT MATERIAL
Organization Name
Inventor(s)
Sadakazu Wakui of Anan-shi (JP)
Kohei Kunimoto of Osaka-shi (JP)
Hiroyuki Watanabe of Itano-gun (JP)
METHOD OF PRODUCING NITRIDE FLUORESCENT MATERIAL AND NITRIDE FLUORESCENT MATERIAL - A simplified explanation of the abstract
This abstract first appeared for US patent application 18394693 titled 'METHOD OF PRODUCING NITRIDE FLUORESCENT MATERIAL AND NITRIDE FLUORESCENT MATERIAL
The method described in the patent application involves producing a nitride fluorescent material by preparing a calcined product with a fluorescent material core and a first film containing fluoride on the surface of the core. This product is then brought into contact with a solution containing a metal alkoxide with an element M2, such as Si, Al, Ti, Zr, Sn, or Zn, and hydrolyzed and condensation-polymerized to form a second film containing an oxide with the element M2. Finally, a heat treatment is performed at a specific temperature range.
- Preparation of a nitride fluorescent material with specific composition and structure
- Utilization of metal alkoxide solution for film formation on the fluorescent material core
- Heat treatment process to enhance the properties of the nitride fluorescent material
- Inclusion of elements like Sr, Ca, Ba, Mg, Li, Na, K, Eu, Ce, Tb, Mn, Al, N in the composition
- Potential for improved fluorescence and stability of the material
Potential Applications: - Lighting industry for high-performance fluorescent lamps - Display technology for vibrant and long-lasting colors - Medical imaging for enhanced contrast and visibility
Problems Solved: - Enhancing the fluorescence and stability of nitride materials - Improving the efficiency and performance of fluorescent devices
Benefits: - Brighter and more stable fluorescence - Longer lifespan of fluorescent materials - Enhanced performance in various applications
Commercial Applications: Title: Advanced Nitride Fluorescent Material for High-Performance Lighting and Display Technology This technology can be utilized in the production of high-quality fluorescent lamps, display screens, and medical imaging devices, leading to improved performance and durability in various commercial applications.
Questions about Nitride Fluorescent Material: 1. How does the heat treatment process impact the properties of the nitride fluorescent material? The heat treatment process helps to enhance the fluorescence and stability of the material by optimizing its structure and composition.
2. What are the key elements included in the composition of the nitride fluorescent material? The composition includes elements like Sr, Ca, Ba, Mg, Li, Na, K, Eu, Ce, Tb, Mn, Al, N, and optionally Si, which contribute to its fluorescence and stability.
Original Abstract Submitted
A method of producing a nitride fluorescent material includes preparing a calcined product including a fluorescent material core, and a first film containing fluoride on a surface of the fluorescent material core, bringing the calcined product into contact with a solution containing a metal alkoxide containing an element M2 being at least one element selected from the group consisting of Si, Al, Ti, Zr, Sn, and Zn at a temperature equal to or lower than an ambient temperature and hydrolyzing and condensation-polymerizing the metal alkoxide to form a second film containing an oxide containing the element M2, and performing a heat-treatment at a temperature higher than 250° C. and equal to or lower than 500° C. The nitride fluorescent material includes the fluorescent material core having a composition containing an element Mbeing at least one element selected from the group consisting of Sr, Ca, Ba, and Mg, an element Mbeing at least one element selected from the group consisting of Li, Na, and K, an element Mbeing at least one element selected from the group consisting of Eu, Ce, Tb, and Mn, Al, N, and optionally Si.
