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- W3121464875 abstract "External quantum efficiency of industrial-grade green InGaN light-emitting diodes (LEDs) has been measured in a wide range of operating currents at various temperatures from 13 K to 300 K. Unlike blue LEDs, the efficiency as a function of current is found to have a multi-peak character, which could not be fitted by a simple ABC-model. This observation correlated with splitting of LED emission spectra into two peaks at certain currents. The characterization data are interpreted in terms of non-uniformity of the LED active region, which is tentatively attributed to extended defects like V-pits. We suggest a new approach to evaluation of temperature-dependent light extraction and internal quantum efficiencies taking into account the active region non-uniformity. As a result, the temperature dependence of light extraction and internal quantum efficiencies have been evaluated in the temperature range mentioned above and compared with those of blue LEDs." @default.
- W3121464875 created "2021-02-01" @default.
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- W3121464875 date "2017-09-12" @default.
- W3121464875 modified "2023-09-23" @default.
- W3121464875 title "Efficiency of True-Green Light Emitting Diodes: Non-Uniformity and Temperature Effects<strong> </strong>" @default.
- W3121464875 doi "https://doi.org/10.20944/preprints201709.0046.v2" @default.
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