JP6058126B2 - 高反射剤を用いた量子収量の向上 - Google Patents
高反射剤を用いた量子収量の向上 Download PDFInfo
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- JP6058126B2 JP6058126B2 JP2015513295A JP2015513295A JP6058126B2 JP 6058126 B2 JP6058126 B2 JP 6058126B2 JP 2015513295 A JP2015513295 A JP 2015513295A JP 2015513295 A JP2015513295 A JP 2015513295A JP 6058126 B2 JP6058126 B2 JP 6058126B2
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- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/62—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing gallium, indium or thallium
- C09K11/621—Chalcogenides
- C09K11/623—Chalcogenides with zinc or cadmium
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- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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Description
本出願は、2012年5月22日に出願された仮出願第61/650,238号の正規の出願であって、当該仮出願の優先権を主張する。引用を以て、当該仮出願の全ての内容を、本明細書に組み込んだものとする。
本発明は、概して、高発光材料の組成に関する。本発明は、より詳細には、発光特性を向上させたナノ粒子組成物に関する。
量子ドット(InP/ZnS)を、2009年9月15日に発行された米国特許第7,588,828号で説明されているようにして調製した。当該米国の特許の内容は、引用を以て、本明細書の一部となる。トルエン中のQD(6.6光学濃度(Optical Density)QDs/mlで0.5ml)の量子収量を、ハママツ社製積分球を用いて測定して、57%のQYを得た。5mgのBaSO4を、0.5mlの20ODQDs/mlトルエン溶液に加えて、撹拌し、ハママツで測定すると、63%のQYを示した。故に、QDのQYは、BaSO4を加えることによって、6%改善した。これらの測定の結果を、下表に纏める。
2009年9月15日に発行された米国特許第7,588,828に記載されている方法に従って、InP/ZnSのQDを調製した。QD樹脂は、ラウリルメタクリレート(LMA)/トリメチロールプロパントリメタクリレート(TMPMA)中のQDを用いて調製された(10、20、30、及び40OD)。ポリ(ブタジエン)ジアクリレート共作用剤(サートマー SR307)とQDとを、トルエン中で、一晩撹拌した。トルエンを除去して、混合物を、LMA、光重合開始剤(イルガギュア Irg819)及びTMPMAと混合した。0乃至5%w/vのBaSO4を組み込んでいる樹脂のQYを、UV硬化後に測定した。その結果を、下表に示す。
下の表は、上述したように調製した、10OD/3mlであるInP/ZnSのQDの樹脂について、ラブスフェア測定値を表にしたものである。表に示す全てのEQEデータは、3回の測定の平均値である。
上述したようにして、InP/ZnSのQDを調製し、反射材料である酸化チタンと共に、樹脂に添加した。下表は、TiO2の添加量に応じた20ODフィルムのQYとEQEを示す。
上述したようにして、InP/ZnSのQDを調製し、反射材料である様々な量のケイ酸アルミニウムと共に樹脂に加えた。下表は、ケイ酸アルミニウムの添加量に応じた20ODQDフィルムのQYとEQEを示す。
Claims (5)
- アクリル樹脂中に懸濁しているコア/シェル量子ドットの集団と硫酸バリウムの粒子とを備えており、コア/シェル量子ドットは、InPを含むコアと、ZnSを含むシェルとを有している発光組成物。
- 前記組成物の外部量子効率は、硫酸バリウムの粒子を含んでいない点を除いて同じである組成物の外部量子効率よりも大きい、請求項1に記載の発光組成物。
- 前記組成物のフォトルミネセンス波長は、硫酸バリウムの粒子を含んでいない点を除いて同じである組成物よりも短い、請求項1に記載の発光組成物。
- 前記組成物のフォトルミネセンス放射ピークの半値全幅は、硫酸バリウムの粒子を含んでいない点を除いて同じである組成物よりも小さい、請求項1に記載の発光組成物。
- 前記組成物の量子収量は、硫酸バリウムの粒子を含んでいない点を除いて同じである組成物よりも大きい、請求項1に記載の発光組成物。
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2013
- 2013-05-22 US US13/900,388 patent/US20130313595A1/en not_active Abandoned
- 2013-05-22 CN CN201380038900.9A patent/CN104487540B/zh active Active
- 2013-05-22 JP JP2015513295A patent/JP6058126B2/ja active Active
- 2013-05-22 KR KR1020147033623A patent/KR101803039B1/ko active IP Right Grant
- 2013-05-22 EP EP13770705.5A patent/EP2852654B1/en active Active
- 2013-05-22 KR KR1020177030624A patent/KR101931621B1/ko active IP Right Grant
- 2013-05-22 WO PCT/IB2013/001816 patent/WO2013175317A1/en active Application Filing
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- 2015-05-29 HK HK15105129.6A patent/HK1204646A1/xx unknown
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KR20170122290A (ko) | 2017-11-03 |
US20130313595A1 (en) | 2013-11-28 |
KR101803039B1 (ko) | 2017-11-29 |
KR101931621B1 (ko) | 2018-12-24 |
JP2015522668A (ja) | 2015-08-06 |
CN104487540B (zh) | 2017-06-20 |
EP2852654B1 (en) | 2017-07-26 |
HK1204646A1 (en) | 2015-11-27 |
EP2852654A1 (en) | 2015-04-01 |
WO2013175317A1 (en) | 2013-11-28 |
CN104487540A (zh) | 2015-04-01 |
KR20150016291A (ko) | 2015-02-11 |
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