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Fluoride phosphor including sheet-like crystal and manufacturing method and application thereof

一种制造方法、氟化物的技术，应用在化学仪器和方法、发光材料、半导体器件等方向，能够解决氟化物荧光粉量子效率下降、出光效率下降等问题

Inactive Publication Date: 2018-04-27
LEXTAR ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the junction tube core of the general fluoride phosphor is granular (bulk shape), and its surface defects will lead to a decrease in the quantum efficiency of the fluoride phosphor, and cause light to scatter in the phosphor, resulting in a decrease in light extraction efficiency.

Method used

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  • Fluoride phosphor including sheet-like crystal and manufacturing method and application thereof
  • Fluoride phosphor including sheet-like crystal and manufacturing method and application thereof
  • Fluoride phosphor including sheet-like crystal and manufacturing method and application thereof

Examples

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Embodiment Construction

[0090] The embodiment of this disclosure proposes a fluoride phosphor, its manufacturing method and application. Fluoride phosphors have excellent luminous efficacy.

[0091] It should be noted that the present invention does not show all possible embodiments, and other implementations not presented in the present invention may also be applicable. Furthermore, the size ratios on the drawings are not drawn to the same scale as the actual product. Therefore, the specification and illustrations are only used to describe the embodiments, not to limit the protection scope of the present invention. In addition, the descriptions in the embodiments, such as detailed structures, manufacturing process steps and material applications, etc., are for illustration purposes only, and are not intended to limit the protection scope of the present invention. The details of the steps and structures of the embodiments can be changed and modified according to the needs of the actual application ...

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Abstract

A fluoride phosphor including a sheet-like crystal and a manufacturing method and an application therefore are disclosed. The fluoride phosphor has a chemical formula A2[MF6]:Mn4+, with Mn4+ as an activator. The A is Li, Na, K, Rb, Cs, NH4 or a combination thereof. The M is Ge, Si, Sn, Ti, Zr or a combination thereof.

Description

technical field [0001] The present invention relates to a fluoride fluorescent powder and its manufacturing method and application, and in particular to a fluoride fluorescent powder containing flaky crystals and its manufacturing method and application. Background technique [0002] Light Emitting Diode (LED for short) is the current mainstream white light source and backlight module source. To realize white LED, the main methods include blue LED chip with yellow phosphor, or blue LED chip with red phosphor and green phosphor, or ultraviolet LED chip with blue phosphor, red phosphor and green phosphor. Among them, blue LEDs paired with yellow phosphors lack the red spectrum. If the color temperature needs to be adjusted, red phosphors can be added if necessary. [0003] A 2 [MF 6 ]:Mn 4+ Fluoride can be used as red phosphor material for LED, where A is Li, Na, K, Rb, Cs, NH 4 Or the above combination, M is Ge, Si, Sn, Ti, Zr or the above combination. However, the junc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/67H01L33/50
CPCC09K11/675H01L33/502H01L33/06H01L33/46
Inventor 王仁宏周文理刘如熹陈静仪戴文婉李育群蔡宗良
Owner LEXTAR ELECTRONICS CORP
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