Figure 1From: Light-emitting diodes enhanced by localized surface plasmon resonance Enhanced emission efficiency, Purcell factor, and PL spectrum of the sample. These are shown as red dashed line, blue solid line, and black dotted line, respectively. Nearly 100% emission efficiency can be obtained at around 440 nm; however, this does not perfectly match the emission peak. Reproduced from [18]. Copyright Nature Publishing Group, 2004.Back to article page