The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
Jun. 01, 2011
Tae-gon Kim, Seoul, KR;
Tae-hyung Kim, Seoul, KR;
Seoung-jae Im, Seoul, KR;
Seung-joo Kim, Suwon-si, KR;
Tae-gon Kim, Seoul, KR;
Tae-hyung Kim, Seoul, KR;
Seoung-jae Im, Seoul, KR;
Seung-joo Kim, Suwon-si, KR;
Abstract
A green phosphor, has an orthorhombic structure of a Pnma space group and the Formula 1:(MD)MOA  [Formula 1]wherein Mis magnesium, calcium, strontium, barium, and any combination thereof, D is at least one of metal selected from the group consisting of europium, manganese, antimony, cerium, praseodymium, neodymium, samarium, terbium, dysprosium, erbium, ytterbium, bismuth, and any combination thereof, Mis at least one selected from the group consisting of silicon, germanium, aluminum, gallium, and any combination thereof, A is at least one selected from the group consisting of chlorine, fluorine, bromine, iodine, and any combination thereof, and 2.7≦p≦3.3, 0.7≦q≦1.3, 3.5≦r≦4.5, 1.7≦s≦2.3, and 0<x≦0.1. A method of preparing the green phosphor is disclosed, and a white light-emitting device including the green phosphor. The white light-emitting device has good thermal stability.