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1. (WO2012111929) FLUORESCENT SUBSTANCE AND A PRODUCTION METHOD THEREFOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/111929    International Application No.:    PCT/KR2012/000844
Publication Date: 23.08.2012 International Filing Date: 06.02.2012
IPC:
C09K 11/64 (2006.01), C09K 11/80 (2006.01), C09K 11/79 (2006.01)
Applicants: SAMSUNG ELECTRONICS CO., LTD. [KR/KR]; 129, Samsung-ro, Yeongtong-gu Suwon-si Gyeonggi-do 443-742 (KR) (For All Designated States Except US).
WON, Hyong Sik [KR/KR]; (KR) (For US Only).
KIM, Seong Min [KR/KR]; (KR) (For US Only).
MIN, Chan Suk [KR/KR]; (KR) (For US Only).
YOON, Chul Soo [KR/KR]; (KR) (For US Only)
Inventors: WON, Hyong Sik; (KR).
KIM, Seong Min; (KR).
MIN, Chan Suk; (KR).
YOON, Chul Soo; (KR)
Agent: MUHANN PATENT & LAW FIRM; 2, 5, 6th Floor, Myeonglim Building 51-8 Nonhyeon-dong, Gangnam-gu Seoul 135-814 (KR)
Priority Data:
10-2011-0012712 14.02.2011 KR
Title (EN) FLUORESCENT SUBSTANCE AND A PRODUCTION METHOD THEREFOR
(FR) SUBSTANCE FLUORESCENTE ET SON PROCÉDÉ DE FABRICATION
(KO) 형광체 및 이의 제조방법
Abstract: front page image
(EN)The fluorescent substance according to one embodiment of the present invention has the following compositional formula (1): [Compositional formula 1] SrySi(6-z)AlzOzN(8-z):Rex. Here, x, y and z are respectively 0.005 ≤ x ≤ 0.05, 0.05 ≤ y ≤ 0.5, 0.001 ≤ z ≤ 0.50, and Re is a rare earth element. As a result, the fluorescent substance according to one embodiment of the present invention can exhibit a short wavelength of between 525 nm and 537 nm when the concentration of strontium is between 0.05 moles and 0.5 moles. Also, the fluorescent substance can exhibit a short wavelength of between 525 nm and 537 nm by the addition of barium in a range of between 0.003 moles and 0.125 moles when the concentration of aluminium is high. Also, the fluorescent substance can exhibit a short wavelength of between 525 nm and 537 nm by adjusting the oxygen concentration by the addition not only of AlN but also of Al2O3 as an aluminium precursor when the concentration of aluminium is high. Ultimately, since the fluorescent substance according to one embodiment of the present invention can exhibit a short wavelength of between 525 nm and 537 nm, it is possible to prevent dropoff in colour reproduction and the colour rendering index.
(FR)Selon un mode de réalisation de la présente invention, la substance fluorescente répond à la formule suivante (1) : [Formule 1] SrySi(6-z)AlzOzN(8-z):Rex. Ici, x, y et z sont respectivement 0,005 ≤ x ≤ 0,05, 0,05 ≤ y ≤ 0,5, 0,001 ≤ z ≤0,50, et Re est un élément du groupe des terres rares. Il en résulte que la substance fluorescente selon un mode de réalisation de la présente invention peut montrer une longueur d'onde courte comprise entre 525 nm et 537 nm lorsque la concentration en strontium est comprise entre 0,05 mole et 0,5 mole. De même, la substance fluorescente peut montrer une longueur d'onde courte comprise entre 525 nm et 537 nm par l'ajout de baryum dans une plage comprise entre 0,003 mole et 0,125 mole lorsque la concentration en aluminium est élevée. De même, la substance fluorescente peut montrer une longueur d'onde courte comprise entre 525 nm et 537 nm en ajustant la concentration en oxygène par l'ajout non seulement d'AlN, mais aussi d'Al2O3 en tant que précurseur de l'aluminium lorsque la concentration en aluminium est élevée. Pour finir, étant donné que la substance fluorescente selon un mode de réalisation de la présente invention peut montrer une longueur d'onde courte comprise entre 525 nm et 537 nm, il est possible de prévenir une diminution de la reproduction des couleurs et l'indice de rendu des couleurs.
(KO)본 발명의 일 실시예에 따른 형광체는, 하기의 조성식(1)을 갖는다: [조성식 1] SrySi(6-z)AlzOzN(8-z):Rex 여기서, x, y 및 z는 각각 0.005 ≤ x ≤ 0.05, 0.05 ≤ y ≤ 0.5, 0.001 ≤ z ≤ 0.50이고, Re은 희토류 원소임. 따라서, 본 발명의 일 실시예에 따른 형광체에서는 스트론튬의 농도가 0.05 몰 ~ 0.5 몰인 경우 525 nm ~ 537 nm의 단파장을 나타낼 수 있다. 또한, 알루미늄의 농도가 높은 경우에는 바륨을 0.003 몰 ~ 0.125 몰 범위로 첨가하여 525 nm ~ 537 nm의 단파장을 나타낼 수 있다. 또한, 알루미늄의 농도가 높은 경우에는 알루미늄 전구체로서 AlN 뿐만 아니라 Al2O3를 첨가하여 산소의 농도를 조절하여 525 nm ~ 537 nm의 단파장을 나타낼 수 있다. 결국, 본 발명의 일 실시예에 따른 형광체는 525 nm ~ 537 nm의 단파장을 나타낼 수 있기 때문에, 색재현성 및 연색지수가 떨어지는 것을 방지할 수 있다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)