%0 Journal Article %K Emission %A Deang Liu %A Michael Fina %A Zhaoyang Chen %A Xiaobo Chen %A Gao Liu %A Steven Johnson %A Samuel S Mao %B Applied Physics Letters %D 2007 %G eng %P 093514-1-3 %T Organic light-emitting diodes with structured cathode %V 91 %3 liu group %8 08/2007