Evaluating the well-to-well distribution of radiative recombination rates in semi-polar InGaN multiple-quantum-well light-emitting diodes

The distribution of well-to-well radiative recombination rates (RRRs) in an electrically driven semi-polar InGaN multiple-quantum-well light-emitting diode (LED) is investigated within an electron-hole recombination picture. Compared to the reference (0001) LED, the LED exhibits uniform well-to-well...

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Bibliographic Details
Published in:Applied physics express 2016-07, Vol.9 (7), p.72102
Main Authors: Funato, Mitsuru, Matsufuji, Kohei, Kawakami, Yoichi
Format: Article
Language:English
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Summary:The distribution of well-to-well radiative recombination rates (RRRs) in an electrically driven semi-polar InGaN multiple-quantum-well light-emitting diode (LED) is investigated within an electron-hole recombination picture. Compared to the reference (0001) LED, the LED exhibits uniform well-to-well RRR distributions, which are less dependent on the injection current, because of the weaker polarization field. The smaller dependence of the RRR distribution on the injection current suggests that LEDs can be applied to polychromatic LEDs consisting of quantum wells with different emission colors in electrical series because a current-insensitive apparent emission color is expected. A proof-of-concept polychromatic LED is demonstrated on the semi-polar plane.
ISSN:1882-0778
1882-0786
DOI:10.7567/APEX.9.072102