公开(公告)号：WO2012165753A1

公开(公告)日：2012-12-06

申请号：PCT/KR2012/001433

申请日：2012-02-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  CHOI, Won-Kook ,  PARK, Dong Hee ,  KWON, Byoung Wook ,  SON, Dong Ick

Inventor： CHOI, Won-Kook ,  PARK, Dong Hee ,  KWON, Byoung Wook ,  SON, Dong Ick

IPC: C01B31/02 ,  C01G9/02 ,  B82B3/00

CPC classification number: C01B31/0446 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/184 ,  C01B32/23 ,  C01B2204/02

Abstract: Disclosed are a method for preparing pure graphene using chemical bonding between graphite oxide and a metal oxide nanoparticle, graphene prepared thereby, and a nanoparticle having a quasi metal oxide-graphene core-shell structure. The disclosed method for preparing graphene is advantageous in that the source materials are inexpensive, chemical bonding and separation can be achieved through the simple acid treatment process, and the processing facility does not require high cost since the reaction can be performed at low temperature. Furthermore, pure graphene with less defect can be produced quickly in large quantities because the processing time is short.

Abstract translation: 公开了使用石墨氧化物和金属氧化物纳米颗粒之间的化学键合制备纯石墨烯的方法，由此制备的石墨烯和具有准金属氧化物 - 石墨烯核 - 壳结构的纳米颗粒。 所公开的制备石墨烯的方法的优点在于，源材料便宜，通过简单的酸处理工艺可以实现化学键合和分离，并且加工设备不需要高成本，因为反应可以在低温下进行。 此外，由于处理时间短，因此可以快速大量生产具有较少缺陷的纯石墨烯。

公开(公告)号：WO2013051895A2

公开(公告)日：2013-04-11

申请号：PCT/KR2012/008095

申请日：2012-10-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： CHOI, Won-Kook ,  PARK, Dong Hee ,  SON, Dong Ick ,  KWON, Byoung Wook

IPC: B82B3/00 ,  H01L31/042 ,  B82Y40/00

CPC classification number: H01L31/035218 ,  B01J13/02 ,  B82Y40/00 ,  H01G9/204

Abstract: Disclosed is a method of preparing metal oxide semiconductor-nanocarbon core-shell consolidated quantum dots by chemically linking nanocarbon having superior electrical properties to a metal oxide semiconductor and a method of fabricating a UV photovoltaic cell device by using the same. In case of applying such a new type of quantum dots to a photovoltaic cell as a light absorbing layer, the rate of electron flow is accelerated and that of hole flow is inhibited. Thus, the methods of the present invention can prepare the core-shell consolidated quantum dots having excellent power conversion efficiency and the photovoltaic cell using the same.

Abstract translation: 公开了一种通过将具有优异电性能的纳米碳与金属氧化物半导体化学连接来制备金属氧化物半导体 - 纳米碳核 - 壳固结量子点的方法，以及通过使用制备UV光伏电池装置的方法 一样。 在将这种新型量子点作为光吸收层应用于光伏电池的情况下，电子流动速率加快，空穴流动速度受到抑制。 因此，本发明的方法可以制备具有优异功率转换效率的核 - 壳固结量子点和使用其的太阳能电池。

公开(公告)号：WO2013065956A1

公开(公告)日：2013-05-10

申请号：PCT/KR2012/008096

申请日：2012-10-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： CHOI, Won-Kook ,  SON, Dong Ick ,  KWON, Byoung Wook ,  PARK, Dong Hee

IPC: C09K11/54

CPC classification number: H01L33/06 ,  C09K11/54 ,  H01L33/005 ,  H01L33/26 ,  H01L51/0003 ,  H01L51/0045 ,  H01L51/502 ,  H05B33/10 ,  H05B33/14

Abstract: Disclosed is a method of preparing metal oxide semiconductor-graphene core-shell quantum dots by chemically linking graphenes with superior electrical properties to a metal oxide semiconductor, and a method of fabricating a light emitting diode by using the same. The light emitting diode according to the present invention has the advantages that it shows excellent power conversion efficiency, the cost for materials and equipments required for its fabrication can be reduced, its fabricating process is simple, and it is possible to mass-produce and enlarge the size of display based on a quantum dot light emitting diode. Further, the present invention relates to core-shell quantum dots that can be used in fabricating a light emitting diode with a different wavelength by using various multi-component metal oxide semiconductors and a fabricating method thereof.

Abstract translation: 公开了通过化学连接具有优异电性能的金属氧化物半导体的金属氧化物半导体 - 石墨烯核 - 壳量子点的方法，以及通过使用该方法制造发光二极管的方法。 根据本发明的发光二极管具有优异的功率转换效率，可以降低其制造所需的材料和设备的成本，其制造工艺简单，并且可以批量生产和扩大 基于量子点发光二极管的显示器的尺寸。 此外，本发明涉及可以通过使用各种多组分金属氧化物半导体制造具有不同波长的发光二极管的核 - 壳量子点及其制造方法。

公开(公告)号：WO2006115318A1

公开(公告)日：2006-11-02

申请号：PCT/KR2005/004281

申请日：2005-12-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  CHOI, Won-Kook ,  JUNG, Yeon-Sik ,  KANG, Dong-Heon ,  LEE, Kyung-Ju

Inventor： CHOI, Won-Kook ,  JUNG, Yeon-Sik ,  KANG, Dong-Heon ,  LEE, Kyung-Ju

IPC: B01J37/08

CPC classification number: B01J35/004 ,  B01J21/063 ,  B01J27/22 ,  B01J27/24 ,  B01J37/34 ,  B01J37/347

Abstract: The present invention provides for titanium oxide-based photocatalysts having a general formula of TiO 2-x-Ō C X N Ō and self-cleaning materials that are prepared by substituting O of pure TiO2 with C and N. A preparation method comprising a process for forming thin films of TiO 2-x-Ō C X N Ō by using gases such as Ar, N 2 , CO 2 , CO and O are used for reactive sputtering, and a process of heat treating at around 500°C, thereby crystallizing, is provided. The titanium oxide-based photocatalysts having a general formula of TiO 2-x-Ō C X N Ō and self-cleaning materials according to the present invention have a smaller optical bandgap compared to pure titanium oxides, and therefore, the photocatalysts can be activated under the visible light range. In addition, they comprise only pure anatase crystallization phase, and since the crystallized particles are small in size, the efficiency and self-cleaning effect of the photocatalysts are very high.

Abstract translation: 本发明提供了具有通式TiO 2氧化钛的光催化剂和自清洁材料，其特征在于， 通过用C和N代替纯TiO 2来制备。一种制备方法，包括用于形成TiO 2-x O x N O N的薄膜的方法， 通过使用诸如Ar，N 2，CO 2，CO和O的气体用于反应性溅射，并且在约500℃下进行热处理 ，从而结晶。 具有通式TiO 2氧化钛的光催化剂和根据本发明的自清洁材料 与纯钛氧化物相比具有更小的光学带隙，因此，光催化剂可以在可见光范围内被活化。 此外，它们仅包含纯锐钛矿结晶相，并且由于结晶粒子的尺寸小，因此光催化剂的效率和自清洁效果非常高。

公开(公告)号：EP1874466B1

公开(公告)日：2014-11-19

申请号：EP05822177.1

申请日：2005-12-14

Applicant: Korea Institute of Science and Technology

Inventor： CHOI, Won-Kook ,  JUNG, Yeon-Sik ,  KANG, Dong-Heon ,  LEE, Kyung-Ju

IPC: B01J37/08 ,  B01J35/00

CPC classification number: B01J35/004 ,  B01J21/063 ,  B01J27/22 ,  B01J27/24 ,  B01J37/34 ,  B01J37/347

公开(公告)号：EP1874466A1

公开(公告)日：2008-01-09

申请号：EP05822177.1

申请日：2005-12-14

Applicant: Korea Institute of Science and Technology

Inventor： CHOI, Won-Kook ,  JUNG, Yeon-Sik ,  KANG, Dong-Heon ,  LEE, Kyung-Ju

IPC: B01J37/08

CPC classification number: B01J35/004 ,  B01J21/063 ,  B01J27/22 ,  B01J27/24 ,  B01J37/34 ,  B01J37/347

Abstract: The present invention provides for titanium oxide-based photocatalysts having a general formula of TiO2-x-Ō C XN Ō and self-cleaning materials that are prepared by substituting O of pure TiO2 with C and N. A preparation method comprising a process for forming thin films of TiO2-x-Ō C XN Ō by using gases such as Ar, N2, CO2, CO and O are used for reactive sputtering, and a process of heat treating at around 500°C, thereby crystallizing, is provided. The titanium oxide-based photocatalysts having a general formula of TiO2-x-Ō C XN Ō and self-cleaning materials according to the present invention have a smaller optical bandgap compared to pure titanium oxides, and therefore, the photocatalysts can be activated under the visible light range. In addition, they comprise only pure anatase crystallization phase, and since the crystallized particles are small in size, the efficiency and self-cleaning effect of the photocatalysts are very high.