公开(公告)号：US20100032645A1

公开(公告)日：2010-02-11

申请号：US12360514

申请日：2009-01-27

申请人： Won Kook CHOI ,  Dong Hee PARK ,  Sang Yub IE ,  Dong Ick SON ,  Ji Won CHOI

发明人： Won Kook CHOI ,  Dong Hee PARK ,  Sang Yub IE ,  Dong Ick SON ,  Ji Won CHOI

IPC分类号： H01L51/54 ,  H01L51/56

CPC分类号： H01L51/5036 ,  C09K11/02 ,  C09K11/883 ,  H01L2251/5369 ,  H01L2251/564 ,  H05B33/10

摘要： The present invention relates to an AC voltage-driven light emitting device having a single active layer of a core-shell structure (p-i-n structure) in which intrinsic semiconductor nanocrystals, exciton combination centers, are uniformly and isotropically distributed around p-type polymer particles, and n-type small molecular particles surround the semiconductor nanocrystals and p-type polymer, and a manufacturing method thereof. An active layer of a core-shell structure using a polymer-semiconductor nano hybrid in the light-emitting device has an inversion symmetry characteristic showing the same current-voltage characteristic during application of a voltage in a forward direction and a reverse direction. Therefore, due to this inversion symmetry characteristic, the light emitting can be driven by even an AC voltage. Also, since the device can be driven by an AC voltage, limitations of an existing DC voltage-driven organic light emitting diode, that is, destruction or a defect of the device by an overcurrent and generation of a dark spot by degradation of local constituent organic materials are solved.

摘要翻译： 本发明涉及一种AC电压驱动的发光器件，其具有核 - 壳结构（pin结构）的单个有源层，其中本征半导体纳米晶体，激子组合中心在p型聚合物颗粒周围均匀且各向同性地分布， 和n型小分子颗粒包围半导体纳米晶体和p型聚合物及其制造方法。 在发光装置中使用聚合物半导体纳米混合物的核 - 壳结构的有源层具有在向正方向和相反方向施加电压期间显示相同电流 - 电压特性的反转对称特性。 因此，由于这种反转对称特性，发光可以通过甚至交流电压驱动。 此外，由于该装置可以由AC电压驱动，所以现有的直流电压驱动的有机发光二极管的限制，即通过过度电流的破坏或装置的缺陷以及通过局部成分的降解产生暗点 有机材料得到解决。

公开(公告)号：US20120308468A1

公开(公告)日：2012-12-06

申请号：US13193777

申请日：2011-07-29

申请人： Won Kook CHOI ,  Dong Hee PARK ,  Byoung Wook KWON ,  Dong Ick SON

发明人： Won Kook CHOI ,  Dong Hee PARK ,  Byoung Wook KWON ,  Dong Ick SON

IPC分类号： C01B31/00 ,  C01B31/04 ,  B82Y30/00

CPC分类号： C01B31/0446 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/184 ,  C01B32/23 ,  C01B2204/02

摘要： Disclosed are a method for preparing pure graphene using chemical bonding between graphite oxide and metal oxide nanoparticles, and graphene and nanoparticles having a quasi metal oxide-graphene core-shell prepared therefrom.The disclosed method for preparing graphene allows chemical bonding and separation through a simple acid treatment process using inexpensive materials. Also, because the reaction can be carried out at low temperature, the processing cost is low. And, pure graphene with few impurities can be prepared quickly in large scale.

摘要翻译： 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，以及由其制备的具有准金属氧化物 - 石墨烯核 - 壳的石墨烯和纳米颗粒。 所公开的制备石墨烯的方法允许通过使用廉价材料的简单酸处理方法进行化学键合和分离。 此外，由于反应可以在低温下进行，所以加工成本低。 而且，可以大量快速制备纯净的石墨烯杂质少。