公开(公告)号：US20100044697A2

公开(公告)日：2010-02-25

申请号：US11918442

申请日：2006-04-13

申请人： Jie LIU ,  Jianye LI ,  Henry EVERITT ,  Hongying PENG ,  John FOREMAN

发明人： Jie LIU ,  Jianye LI ,  Henry EVERITT ,  Hongying PENG ,  John FOREMAN

IPC分类号： H01L33/00 ,  C09K11/54 ,  C09K11/56

CPC分类号： C01G9/02 ,  B82Y30/00 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/16 ,  C09K11/54 ,  C09K11/565 ,  H01B1/08 ,  H01B1/10 ,  H01L33/18

摘要： Luminescent nanostructures (e.g., nanowires) and devices are provided which are capable of emitting bright visible light. The luminescent nanowires are most preferably in the form of a doped ZnO having a spectrally integrated ratio of visible to UV light of at least about 1000 or greater. The dopant for the ZnO luminescent nanowires may be at least one of sulfur, selenium, oxygen, zinc, magnesium, aluminum, with sulfur being especially preferred. The doped ZnO luminescent nanowires may be provided in devices for emitting visible light whereby visible light is emitted by the doped ZnO luminescent nanowires in response to excitation by UV light provided by a UV light source. The device may preferably comprise a transparent or translucent lens covering the UV light source, wherein the doped ZnO luminescent nanowires are present as a coating on a surface of the lens. In some embodiments, the device will comprise multiple UV light sources. Devices of the present invention may be provided with a flat panel lens which is positioned adjacent the multiple UV light sources and has a coating of the doped ZnO luminescent nanowires thereon.

摘要翻译： 提供发光纳米结构（例如，纳米线）和能够发出明亮可见光的器件。 发光纳米线最优选为具有至少约1000或更大的可见光与紫外光的光谱积分比的掺杂ZnO的形式。 用于ZnO发光纳米线的掺杂剂可以是硫，硒，氧，锌，镁，铝中的至少一种，特别优选硫。 掺杂的ZnO发光纳米线可以设置在用于发射可见光的装置中，由此可见光由掺杂的ZnO发光纳米线发射，以响应由UV光源提供的UV光的激发。 该装置可以优选地包括覆盖UV光源的透明或半透明透镜，其中掺杂的ZnO发光纳米线作为透镜表面上的涂层存在。 在一些实施例中，该装置将包括多个UV光源。 本发明的装置可以设置有与多个UV光源相邻并且在其上具有掺杂的ZnO发光纳米线的涂层的平板透镜。