公开(公告)号：US20070075294A1

公开(公告)日：2007-04-05

申请号：US10543185

申请日：2004-01-23

Applicant: Norio Murase ,  Chunliang Li

Inventor： Norio Murase ,  Chunliang Li

IPC: C09K11/08

CPC classification number: C09K11/02 ,  C09K11/883 ,  G02F1/133617

Abstract: The present invention provides a novel fluorescent material which has a luminance higher than that of the conventional rare earth ion-dispersed fluorescent materials and is excellent in light resistance and long-term stability, and also an optical device, such as a high-luminance display panel or lighting equipment, which uses such a fluorescent material. Semiconductor ultrafine particles are characterized by maintaining 50% or more fluorescence quantum yield of photoluminescence when they are kept dispersed in water at 10° C. to 20° C. in air for 5 days. The fluorescent material is obtained by dispersing such semiconductor ultrafine particles in a glass matrix using a sol-gel process.

Abstract translation: 本发明提供了一种新颖的荧光材料，其亮度高于常规稀土离子分散荧光材料，并且具有优异的耐光性和长期稳定性，并且还提供了诸如高亮度显示器 面板或照明设备，其使用这种荧光材料。 半导体超细颗粒的特征在于当将其在10℃至20℃的水中分散在空气中5天时，保持50％或更多的荧光量子产率的光致发光。 通过使用溶胶 - 凝胶法将这种半导体超细颗粒分散在玻璃基质中来获得荧光材料。

公开(公告)号：US08287758B2

公开(公告)日：2012-10-16

申请号：US10543185

申请日：2004-01-23

Applicant: Norio Murase ,  Chunliang Li

Inventor： Norio Murase ,  Chunliang Li

IPC: C09K11/02 ,  C09K11/54 ,  C09K11/56 ,  C09K11/70 ,  C09K11/72 ,  C09K11/77

CPC classification number: C09K11/02 ,  C09K11/883 ,  G02F1/133617

Abstract: The present invention provides a novel fluorescent material which has a luminance higher than that of the conventional rare earth ion-dispersed fluorescent materials and is excellent in light resistance and long-term stability, and also an optical device, such as a high-luminance display panel or lighting equipment, which uses such a fluorescent material. Semiconductor ultrafine particles are characterized by maintaining 50% or more fluorescence quantum yield of photoluminescence when they are kept dispersed in water at 10° C. to 20° C. in air for 5 days. The fluorescent material is obtained by dispersing such semiconductor ultrafine particles in a glass matrix using a sol-gel process.

Abstract translation: 本发明提供了一种新颖的荧光材料，其亮度高于常规稀土离子分散荧光材料，并且具有优异的耐光性和长期稳定性，并且还提供了诸如高亮度显示器 面板或照明设备，其使用这种荧光材料。 半导体超细颗粒的特征在于当将其在10℃至20℃的水中分散在空气中5天时，保持50％或更多的荧光量子产率的光致发光。 通过使用溶胶 - 凝胶法将这种半导体超细颗粒分散在玻璃基质中来获得荧光材料。

公开(公告)号：US20090108235A1

公开(公告)日：2009-04-30

申请号：US11992403

申请日：2006-09-21

Applicant: Masanori Ando ,  Norio Murase ,  Chunliang Li ,  Ping Yang

Inventor： Masanori Ando ,  Norio Murase ,  Chunliang Li ,  Ping Yang

IPC: C09K11/56 ,  C09K11/54 ,  B05D5/06 ,  G01J3/30 ,  C09K11/06 ,  C09K11/08

CPC classification number: C09K11/883 ,  C09K11/02 ,  C09K11/565 ,  G01N21/6489 ,  G01N2021/6439

Abstract: The present invention provides semiconductor-nanoparticle-dispersed small silica glass particles that emit bright fluorescent light with high fluorescence quantum yield and high density, compared to the conventional semiconductor-nanoparticle-dispersed small glass particles, and that have excellent fluorescence intensity stability over time; and a process for preparing the same. The semiconductor-nanoparticle-dispersed silica glass particles have a mean particle size of not less than 10 nanometers and not more than 5 micrometers, and contain a hydrolyzed alkoxide and semiconductor nanoparticles at a concentration of not less than 2×10−5 mol/l and not more than 1×10−2 mol/l. The particles emit fluorescent light with a fluorescence quantum yield (quantum yield) of 25% or more (and 60% or more), when dispersed in a solution.

Abstract translation: 本发明提供与传统的半导体纳米颗粒分散的小玻璃微粒相比发射具有高荧光量子产率和高密度的明亮荧光的半导体纳米颗粒分散小二氧化硅玻璃颗粒，并且随时间具有优异的荧光强度稳定性; 及其制备方法。 半导体纳米颗粒分散石英玻璃颗粒的平均粒度不小于10纳米且不大于5微米，并且含有浓度不小于2×10 -5 mol / l的水解的醇盐和半导体纳米颗粒，而不是 大于1×10 -2 mol / l。 当分散在溶液中时，粒子发射荧光量子产率（量子产率）为25％以上（和60％以上）的荧光。

公开(公告)号：US20090315446A1

公开(公告)日：2009-12-24

申请号：US12427138

申请日：2009-04-21

Applicant: Norio MURASE ,  Chunliang LI ,  Masanori ANDO

Inventor： Norio MURASE ,  Chunliang LI ,  Masanori ANDO

IPC: H01J1/62 ,  C23C18/14 ,  B32B5/02 ,  C09K11/08 ,  C09K11/56 ,  C09K11/54 ,  C09K11/70

CPC classification number: C09K11/70 ,  B82Y30/00 ,  C09K11/02 ,  C09K11/565 ,  C23C18/122 ,  C23C18/1254 ,  C23C18/14 ,  Y10S977/778 ,  Y10S977/815 ,  Y10S977/816 ,  Y10S977/818 ,  Y10S977/819 ,  Y10S977/82 ,  Y10S977/826 ,  Y10S977/834 ,  Y10T428/268

Abstract: The present invention provides nanoparticles having a core/shell structure consisting of a core comprising a Group III element and a Group V element at a molar ratio of the Group III element to the Group V element in the range of 1.25 to 3.0, and a shell comprising a Group II element and a Group VI element and having a thickness of 0.2 nm to 4 nm, the nanoparticles having a photoluminescence efficiency of 10% or more and a diameter of 2.5 to 10 nm; a method of producing the water-dispersible nanoparticles comprising bringing a dispersion of III-V semiconductor nanoparticles in an organic solvent into contact with an aqueous solution of a Group II element-containing compound and a Group VI element-containing compound to thereby transfer the III-V semiconductor nanoparticles of the organic solvent dispersion to the aqueous solution, and then irradiating the aqueous solution with light; and a method of producing a glass matrix having the nanoparticles dispersed therein.The present invention provides III-V semiconductor nanoparticles having a high photoluminescence efficiency in an aqueous solution, and a method of producing the nanoparticles. The invention further provides a fluorescent material with high PL efficiency containing the III-V semiconductor nanoparticles retained in a glass matrix, a method of producing the fluorescent material, and a light-emitting device containing the fluorescent material.

Abstract translation: 本发明提供具有由包含III族元素和V族元素的芯组成的核/壳结构的纳米颗粒，其中III族元素与V族元素的摩尔比在1.25至3.0的范围内，壳体 包含II族元素和VI族元素，并且具有0.2nm至4nm的厚度，所述纳米颗粒的光致发光效率为10％以上，直径为2.5〜10nm; 制备水分散性纳米颗粒的方法包括使III-V族半导体纳米颗粒在有机溶剂中的分散体与含有II族元素的化合物和含VI族元素的化合物的水溶液接触，从而将III -V半导体纳米颗粒的有机溶剂分散到水溶液中，然后用光照射水溶液; 以及制备其中分散有纳米颗粒的玻璃基质的方法。 本发明提供了在水溶液中具有高光致发光效率的III-V族半导体纳米粒子，以及制造纳米粒子的方法。 本发明还提供一种含有保留在玻璃基质中的III-V族半导体纳米粒子的PL效率高的荧光材料，荧光材料的制造方法以及含有荧光体的发光元件。

公开(公告)号：US08585927B2

公开(公告)日：2013-11-19

申请号：US11992403

申请日：2006-09-21

Applicant: Masanori Ando ,  Norio Murase ,  Chunliang Li ,  Ping Yang

Inventor： Masanori Ando ,  Norio Murase ,  Chunliang Li ,  Ping Yang

IPC: C09K11/08

CPC classification number: C09K11/883 ,  C09K11/02 ,  C09K11/565 ,  G01N21/6489 ,  G01N2021/6439

Abstract: The present invention provides semiconductor-nanoparticle-dispersed small silica glass particles that emit bright fluorescent light with high fluorescence quantum yield and high density, compared to the conventional semiconductor-nanoparticle-dispersed small glass particles, and that have excellent fluorescence intensity stability over time; and a process for preparing the same. The semiconductor-nanoparticle-dispersed silica glass particles have a mean particle size of not less than 10 nanometers and not more than 5 micrometers, and contain a hydrolyzed alkoxide and semiconductor nanoparticles at a concentration of not less than 2×10−5 mol/l and not more than 1×10−2 mol/l. The particles emit fluorescent light with a fluorescence quantum yield (quantum yield) of 25% or more (and 60% or more), when dispersed in a solution.

Abstract translation: 本发明提供与传统的半导体纳米颗粒分散的小玻璃微粒相比发射具有高荧光量子产率和高密度的明亮荧光的半导体纳米颗粒分散小二氧化硅玻璃颗粒，并且随时间具有优异的荧光强度稳定性; 及其制备方法。 半导体纳米颗粒分散石英玻璃颗粒的平均粒度不小于10纳米且不大于5微米，并且含有浓度不小于2×10 -5摩尔/升的水解醇盐和半导体纳米颗粒 不超过1×10-2 mol / l。 当分散在溶液中时，粒子发射荧光量子产率（量子产率）为25％以上（和60％以上）的荧光。

公开(公告)号：US08221651B2

公开(公告)日：2012-07-17

申请号：US12427138

申请日：2009-04-21

Applicant: Norio Murase ,  Chunliang Li ,  Masanori Ando

Inventor： Norio Murase ,  Chunliang Li ,  Masanori Ando

IPC: C09K11/08

CPC classification number: C09K11/70 ,  B82Y30/00 ,  C09K11/02 ,  C09K11/565 ,  C23C18/122 ,  C23C18/1254 ,  C23C18/14 ,  Y10S977/778 ,  Y10S977/815 ,  Y10S977/816 ,  Y10S977/818 ,  Y10S977/819 ,  Y10S977/82 ,  Y10S977/826 ,  Y10S977/834 ,  Y10T428/268

Abstract: Nanoparticles having a core/shell structure consisting of a core comprising a Group III element and a Group V element at a molar ratio of the Group III element to the Group V element in the range of 1.25 to 3.0, and a shell comprising a Group II element and a Group VI element and having a thickness of 0.2 nm to 4 nm, the nanoparticles having a photoluminescence efficiency of 10% or more and a diameter of 2.5 to 10 nm; a method of producing the water-dispersible nanoparticles and a method of producing a glass matrix having the nanoparticles dispersed therein.

Abstract translation: 具有由包含III族元素和V族元素的芯构成的核/壳结构的纳米颗粒与III族元素与V族元素的摩尔比在1.25至3.0的范围内，以及包含II族的壳 元素和VI族元素，并且具有0.2nm至4nm的厚度，所述纳米颗粒的光致发光效率为10％以上，直径为2.5〜10nm; 水分散性纳米粒子的制造方法以及分散有纳米粒子的玻璃基体的制造方法。