Visible Colloidal Nanocrystal Silicon Light-Emitting Diode
Visible Colloidal Nanocrystal Silicon Light-Emitting Diode
复制标题
DOI：
10.1021/nl1044583
复制
发表时间：
2011-04-01
期刊：
影响因子：
10.8
通讯作者：
Lu, Zhenghong
中科院分区：
文献类型：
--
作者：
Puzzo, Daniel P.;Henderson, Eric J.;Lu, Zhenghong
我们在此展示了混合硅量子点有机发光二极管形式的胶体硅的可见电致发光。硅量子点发射来自量子限制，因此突出了我们的器件的尺寸可调谐的可见电致发光。在器件电致发光由硅量子点发射主导的驱动电压下获得了0.7%的外量子效率。我们的设备的特性强烈依赖于所采用的有机传输层，以及对溶剂的选择，其中硅量子点被铸造。
We herein demonstrate visible electroluminescence from colloidal silicon in the form of a hybrid silicon quantum dot organic light emitting diode. The silicon quantum dot emission arises from quantum confinement, and thus nanocrystal size tunable visible electroluminescence from our devices is highlighted. An external quantum efficiency of 0.7% was obtained at a drive voltage where device electroluminescence is dominated by silicon quantum dot emission. The characteristics of our devices depend strongly on the organic transport layers employed as well as on the choice of solvent from which the Si quantum dots are cast.