KR20170056677A - 하이브리드 코팅을 갖는 인광체 및 제조 방법 - Google Patents
하이브리드 코팅을 갖는 인광체 및 제조 방법 Download PDFInfo
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- KR20170056677A KR20170056677A KR1020177010397A KR20177010397A KR20170056677A KR 20170056677 A KR20170056677 A KR 20170056677A KR 1020177010397 A KR1020177010397 A KR 1020177010397A KR 20177010397 A KR20177010397 A KR 20177010397A KR 20170056677 A KR20170056677 A KR 20170056677A
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Abstract
Description
도 1은 조명 디바이스를 개략적으로 도시한다.
도 2a는 졸-겔 제1 코팅을 갖는 발광 분말 입자를 개략적으로 도시한다. 도 2b-2d는 미립자 발광 물질의 몇가지 추가의 측면을 개략적으로 도시한다.
도 3a-3b는 단일 그레인의 표면 구조를 나타내는 건조 후 SiO2 코팅된 분말의 SEM 이미지를 나타낸다. 도 3c는 하이브리드 코팅된 입자의 TEM 사진을 나타낸다.
도 4a는 ALD 코팅 (SiO2 상 Al2O3) 전(SiO2 단독) 및 후에 인광체 분말에 대한 분해 시간(시)의 함수로서 상대 광 출력 (LO)을 나타낸다; 분해 조건: 60℃/100% 상대 습도: ALD-1: 인광체 상 20 nm Al2O3; ALD-2: 인광체 상 40 nm Al2O3; ALD-3: SiO2 코팅 상에 침착된 20 nm Al2O3; SiO2-1: 인광체 상 졸-겔 SiO2 코팅 (ALD-3의 기반);
도 4b는 시간으로 제공된 분해 시간의 함수로서 상대 광 출력 (LO)(85℃/100%RH)을 나타낸다; ALD-3: SiO2 코팅 상 20 nm Al2O3; ALD-4: 20 nm Al2O3/Ta2O5 나노라미네이트; 얇은 SiO2 층(<10 nm) 상에 침착됨; ALD-5: 20 nm Al2O3/Ta2O5 나노라미네이트; SiO2 코팅 상에 침착됨; ALD-6: 20 nm Al2O3/HfO2 나노라미네이트; SiO2 코팅 상에 침착됨.
도 4c는 시간으로 제공된 분해 시간의 함수로서 상대 광 출력 (LO)(85℃/100%RH)을 나타낸다: 상기 기재된 바와 같은 ALD-3 및 ALD-6 샘플; ALD-7: 얇은 SiO2 층(<10 nm) 상 20 nm Al2O3/HfO2 나노라미네이트, 나노라미네이트 설계: 4 x [1.5 nm Al2O3 / 3.5 nm HfO2]; ALD-8: 얇은 SiO2 층(<10 nm) 상 10 nm Al2O3/HfO2 나노라미네이트, 나노라미네이트 설계: 2 x [1.5 nm Al2O3 / 3.5 nm HfO2]. 졸-겔 SiO2 코팅은 일반적으로 달리 지시되지 않는 한, 150-200 nm 범위의 층 두께를 갖는다. <10 nm의 두께로 지시된 얇은 SiO2 층은 일반적으로 약 1-10 nm 범위의 평균 층 두께를 가질 것이다.
개략도는 반드시 일정한 비율은 아니다.
Claims (16)
- 하이브리드 코팅을 갖는 발광 입자(100)를 제공하는 방법으로서,
(i) 상기 발광 입자(100) 상에 졸-겔 코팅 방법의 적용에 의해 제1 코팅 층(110)을 제공하여 코팅된 발광 입자(100a)를 제공하는 단계; 및
(ii) 코팅된 발광 입자(100a) 상에 원자층 증착 방법의 적용에 의해 제2 코팅 층(120)을 제공하는 단계
를 포함하며, 여기서 상기 제2 코팅 층(120)은 상이한 화학 조성을 갖는 층들(1121)을 갖는 다중층(1120)을 포함하고, 원자층 증착 방법에서, 금속 산화물 전구체는 Al, Hf, Ta, Zr, Ti 및 Si로 이루어진 군으로부터 선택된 금속들의 금속 산화물 전구체들의 군으로부터 선택되는 것인, 방법. - 제1항에 있어서,
(i) 상기 졸-겔 코팅 방법의 적용에 의해 발광 입자(100) 상에 20-500 nm 범위의 제1 코팅 층 두께(d1)를 갖는 제1 코팅 층(110)을 제공하여 상기 코팅된 발광 입자(100a)를 제공하는 단계; 및
(ii) 상기 원자층 증착 방법의 적용에 의해 상기 코팅된 발광 입자(100a) 상에 5-250 nm 범위의 제2 코팅 층 두께(d2)를 갖는 제2 코팅 층(120)을 제공하는 단계
를 포함하는 방법. - 제1항 또는 제2항에 있어서, 발광 입자(100)가 니트라이드 발광 물질, 옥시니트라이드 발광 물질, 할로게나이드 발광 물질, 옥시할로게나이드 발광 물질, 술피드 발광 물질, 옥시술피드 발광 물질 중 하나 이상, 및 CdS, CdSe, ZnS 및 ZnSe로 이루어진 군으로부터 선택된 1종 이상의 코어 물질(102)을 포함하는 발광 양자점을 포함하는 것인 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 발광 입자(100)가 SrLiAl3N4:Eu2+ 부류로부터 선택된 발광 물질을 포함하는 것인 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 졸-겔 코팅 방법이
ia) 알콜, 암모니아, 물, 발광 입자(100) 및 금속 알콕시드 전구체의 혼합물을 혼합물 교반 하에 제공하고, 제1 코팅이 발광 입자(100) 상에 형성되게 하며, 여기서 금속 알콕시드 전구체는 티타늄 알콕시드, 규소 알콕시드 및 알루미늄 알콕시드로 이루어진 군으로부터 선택되는 것인 단계; 및
ib) 혼합물로부터 발광 입자(100)를 회수하고, 발광 입자(100)를 열 처리하여 상기 코팅된 발광 입자(100a)를 제공하는 단계
를 포함하는 것인 방법. - 제1항 내지 제6항 중 어느 한 항에 있어서, 원자층 증착 방법에서 금속 산화물 전구체가 Hf, Ta 및 Zr로 이루어진 군으로부터 선택된 금속의 금속 산화물 전구체의 군으로부터 선택되는 것인 방법.
- 제6항 또는 제7항에 있어서, 규소 알콕시드 전구체가
, , 및 로 이루어진 군으로부터 선택되고, 원자층 증착 방법에서 Al(CH3)3, HAl(CH3)2, Hf(N(CH3)2)4, Hf(N(CH2CH3)2)4, Hf[N(CH3)(CH2CH3)]4, TaCl5, Ta(N(CH3)2)5, Ta{[N(CH3)(CH2CH3)]3N(C(CH3)3)}, ZrCl4, Zr(N(CH3)2)4, TiCl4, Ti(OCH3)4, Ti(OCH2CH3)4, SiCl4, H2N(CH2)3Si(OCH2CH3)3 및 Si(OCH2CH3)4로 이루어진 군으로부터 선택된 금속 산화물 전구체 및 H2O 및 O3으로 이루어진 군으로부터 선택된 산소 공급원이 사용되는 것인 방법. - 제1항 내지 제8항 중 어느 한 항에 있어서, 원자층 증착 방법에서 상이한 화학 조성을 갖는 층들(1121)을 갖는 다중층(1120)이 제공되고, 하나 이상의 층(1121)이 Ta2O5를 포함하는 것인 방법.
- 제1항 내지 제9항 중 어느 한 항에 따른 방법에 의해 수득가능한 발광 입자(100)를 포함하는 발광 물질(1).
- 발광 코어(102), 5-500 nm 범위의 제1 코팅 층 두께(d1)를 갖는 제1 코팅 층(110) 및 5-250 nm 범위의 제2 코팅 층 두께(d2)를 갖는 제2 코팅 층(120)을 포함하는 발광 입자(100)를 포함하며, 여기서 제2 코팅 층(120)은 상이한 화학 조성을 갖는 층들(1121)을 갖는 다중층(1120)을 포함하고, 다중층(1120)은 Al, Hf, Ta, Zr, Ti 및 Si 중 하나 이상의 산화물을 포함하는 하나 이상의 층을 포함하는 것인 발광 물질(1).
- 제11항 또는 제12항에 있어서, 발광 코어(102)가 비-산화물을 포함하고, 발광 코어(102)와 제1 코팅 층(110) 사이에 중간 산화물 층(105)이 존재하는 것인 발광 물질(1).
- 제11항 내지 제13항 중 어느 한 항에 있어서, 하나 이상의 층(1121)이 Al2O3, HfO2, Ta2O5, ZrO2, TiO2 및 SiO2 중 하나 이상을 포함하는 것인 발광 물질.
- 제11항 내지 제13항 중 어느 한 항에 있어서, 제2 코팅 층(120)이 상이한 화학 조성을 갖는 층들(1121)을 갖는 다중층(1120)을 포함하고, 하나 이상의 층(1121)이 Ta2O5, HfO2 및 ZrO2 중 하나 이상을 포함하고, 하나 이상의 층이 Al2O3을 포함하는 것인 발광 물질.
- 제11항 내지 제14항 중 어느 한 항에 있어서, 제2 코팅 층(120)이 상이한 화학 조성을 갖는 층들(1121)을 갖는 다중층(1120)을 포함하고, 하나 이상의 층(1121)이 Ta2O5를 포함하고, 하나 이상의 층이 Al2O3을 포함하는 것인 발광 물질.
- 광원 방사선(11)을 발생시키도록 구성된 광원(10) 및 제1항 내지 제10항 중 어느 한 항에 따라 수득가능한 또는 제11항 내지 제15항 중 어느 한 항에 정의된 발광 물질(1)을 포함하는 파장 전환기(30)를 포함하며, 여기서 파장 전환기(30)는 광원 방사선(11)의 적어도 일부를 파장 전환기 광(31)으로 전환시키도록 구성된 것인 조명 디바이스(20).
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| PCT/EP2015/070707 WO2016041838A1 (en) | 2014-09-17 | 2015-09-10 | Phosphor with hybrid coating and method of production |
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| EP (2) | EP3194528B1 (ko) |
| JP (2) | JP2017531068A (ko) |
| KR (1) | KR102577454B1 (ko) |
| CN (1) | CN107075356B (ko) |
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| KR20230027288A (ko) * | 2020-06-29 | 2023-02-27 | 루미레즈 엘엘씨 | 인광체 입자 코팅 |
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| JP2017531068A (ja) | 2017-10-19 |
| TW201619349A (zh) | 2016-06-01 |
| TWI711684B (zh) | 2020-12-01 |
| CN107075356A (zh) | 2017-08-18 |
| US20180230376A1 (en) | 2018-08-16 |
| JP2020045494A (ja) | 2020-03-26 |
| EP3778829A1 (en) | 2021-02-17 |
| CN107075356B (zh) | 2020-12-22 |
| EP3194528B1 (en) | 2020-11-11 |
| WO2016041838A1 (en) | 2016-03-24 |
| US11142683B2 (en) | 2021-10-12 |
| EP3194528A1 (en) | 2017-07-26 |
| KR102577454B1 (ko) | 2023-09-12 |
| JP7048559B2 (ja) | 2022-04-05 |
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