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 . Copyright Nature Publishing Group, 2004.
Gu et al. Nanoscale Research Letters 2011 6:199 doi:10.1186/1556-276X-6-199