PHOSPHOR COMPOSITION AND PREPARATION METHOD THEREFOR

Title:

PHOSPHOR COMPOSITION AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2022/145750

Kind Code:

A1

Abstract:

The present application relates to a phosphor and a preparation method therefor, and disclosed is a phosphor, which is represented by the chemical formula of ABCDO6:Cr3+,Yb3 comprising Cr3+ and Yb3+ and has a down conversion property, wherein A is at least one from among Li, Na, K and Rb, B is at least one from among Gd, La and Y, C is Mg, and D is W and/or Mo.

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Inventors:

IM WON BIN (KR)
KIM HA JUN (KR)
OH HYUN JIN (KR)
CHOI IL HOON (KR)
KIM HONG KEON (KR)
KIM HYUN JUN (KR)
NOOLU SRINIVASA MANIKANTA VISWANATH (KR)

Application Number:

PCT/KR2021/017941

Publication Date:

July 07, 2022

Filing Date:

December 01, 2021

Export Citation:

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Assignee:

IUCF HYU (KR)
KOMSCO KOREA MINTING SECURITY PRINTING & ID CARD OPERATING CORP (KR)

International Classes:

C09K11/08; C09K11/77

Foreign References:

KR20140056639A	2014-05-12
KR20190090051A	2019-07-31
KR20190114133A	2019-10-10

Other References:

KUMAR K. NAVEEN, VIJAYALAKSHMI L., CHOI JUNGWOOK: "Investigation of Upconversion Photoluminescence of Yb 3+ /Er 3+ :NaLaMgWO 6 Noncytotoxic Double-Perovskite Nanophosphors", INORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY, EASTON , US, vol. 58, no. 3, 4 February 2019 (2019-02-04), Easton , US , pages 2001 - 2011, XP055948407, ISSN: 0020-1669, DOI: 10.1021/acs.inorgchem.8b02990
CHENG YUAN, SUN KANGNING, GE PINGHUI: "Yb3+ and Er3+ co-doped ZnGa2O4:Cr3+ powder phosphors: Combining green up-conversion emission and red persistent luminescence", OPTICAL MATERIALS, ELSEVIER SCIENCE PUBLISHERS B.V. AMSTERDAM., NL, vol. 83, 1 September 2018 (2018-09-01), NL , pages 13 - 18, XP055948408, ISSN: 0925-3467, DOI: 10.1016/j.optmat.2018.05.048

Attorney, Agent or Firm:

IPS PATENT FIRM (KR)

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