Figure 5.
The optical power of the electroluminescence emission of a light emitting diode that
was grown on the patterned sapphire substrate with or without micro- and nanoscale
complex structures: (a) with respect to wavelength at 20 mA, (b) with respect to current,
and (c) with a 60° tilt.
Cho et al. Nanoscale Research Letters 2011 6:578 doi:10.1186/1556-276X-6-578 |