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Influence of Mg-doped barriers on semipolar () multiple-quantum-well green light-emitting diodes
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10.1063/1.3647560
/content/aip/journal/apl/99/14/10.1063/1.3647560
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/14/10.1063/1.3647560
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Relative output power and forward voltage (Vf) under 20 mA injection for LEDs with different Mg doping levels in the barriers. The upper right corner shows the EL spectra under 5 mA and 40mA injection for LEDs with high Mg doping levels (b) EL peak wavelength versus applied bias for current injection levels ranging from 2 mA to 100mA for undoped, low-doped (3.6 × 1018 cm−3), and high-doped (1.8×1019 cm−3) barriers.

Image of FIG. 2.
FIG. 2.

(Color online) The EL spectra of dichromatic DQW LEDs with (a) undoped barriers and (b) Mg-doped barriers under various injection levels.

Image of FIG. 3.
FIG. 3.

(Color online) Simulated band diagrams and hole concentrations of () DQW green LEDs with (a) undoped and (b) Mg-doped barriers. (c) Magnification of valence bands near the active region for both LEDs. (d) Voltage and emission peak wavelength of the orange-red LED under various injection levels. An optical micrograph under 40 mA injection is shown in the lower left corner.

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/content/aip/journal/apl/99/14/10.1063/1.3647560
2011-10-07
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of Mg-doped barriers on semipolar (202¯1) multiple-quantum-well green light-emitting diodes
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/14/10.1063/1.3647560
10.1063/1.3647560
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