Title:
PHOSPHOR, MANUFACTURING METHOD THEREFOR, AND LIGHT EMITTING DEVICE USING SAID PHOSPHOR
Document Type and Number:
WIPO Patent Application WO/2016/129594
Kind Code:
A1
Abstract:
The present embodiment provides a phosphor having an improved retention rate of light emitting intensity without reducing the light emitting intensity of the phosphor, and a light emitting device using said phosphor. The phosphor has a basic structure containing: at least one element selected from the group consisting of potassium, sodium, and calcium; at least one element selected from the group consisting of silicon and titanium; and fluorine. The phosphor is activated by manganese. In the infrared absorption spectrum of the phosphor, the intensity ratio of a peak between 3570-3610 cm-1 with respect to a peak between 1200-1240 cm-1 is 0.1 or less.
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Inventors:
HIRAMATSU RYOSUKE (JP)
ALBESSARD KEIKO (JP)
ISHIDA KUNIO (JP)
HATTORI YASUSHI (JP)
KATO MASAHIRO (JP)
ALBESSARD KEIKO (JP)
ISHIDA KUNIO (JP)
HATTORI YASUSHI (JP)
KATO MASAHIRO (JP)
Application Number:
PCT/JP2016/053826
Publication Date:
August 18, 2016
Filing Date:
February 09, 2016
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
TOSHIBA MATERIALS CO LTD (JP)
International Classes:
C09K11/61; C09K11/08; C09K11/59; C09K11/62; C09K11/64; C09K11/67; C09K11/79; C09K11/80; H01L33/50
Domestic Patent References:
| WO2014141851A1 | 2014-09-18 |
Foreign References:
| JP2010209311A | 2010-09-24 | |||
| JP2010251621A | 2010-11-04 |
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
Hiroyuki Nagai (JP)
Hiroyuki Nagai (JP)
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