EL spectra of sample E under different injection currents at room temperature. The upper inset is the EL image of sample E at 50 mA. The lower inset shows the injection current dependence of the peak wavelength and FWHM of the EL spectra.
Lv et al. Nanoscale Research Letters 2012 7:617 doi:10.1186/1556-276X-7-617