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The size of QDs as a function of growth time. The solid lines serve as a reference guide.
Room temperature PL spectra of InGaN QDs with sizes of 1.32, 2.40, and .
PL spectra excited by laser power of 1 and measured at for (a) small size QDs and (b) large size QDs . The insets depict the schematic energy band diagrams of the small and large size QDs with built-in piezoelectric fields.
Normalized EL spectra of InGaN QD LEDs of different sizes at an input current of .
Peak position and the FWHM of EL peak with increasing input current for InGaN QDs with a size of 1.32 and . The solid lines serve as a reference guide.
Optical output power of LEDs fabricated using small and large size InGaN QDs.
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