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- W3089306039 abstract "We numerically investigated the performance of N-polar AlGaN-based ultraviolet (UV) light-emitting diodes (LEDs) with different Al contents in quantum wells (QWs) and barriers. We found that N-polar structures could improve the maximum internal quantum efficiency (IQE) and suppress the efficiency droop, especially for deep-UV LEDs. Compared to metal-polar LEDs, N-polar ones retained higher IQE values even when the acceptor concentrations in the p-layers were one order of magnitude lower. The enhanced performance originated from the higher injection efficiencies of N-polar structures in terms of efficient carrier injection into QWs and suppressed electron overflow at high current densities." @default.
- W3089306039 created "2020-10-01" @default.
- W3089306039 creator A5020745634 @default.
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- W3089306039 date "2020-09-28" @default.
- W3089306039 modified "2023-09-29" @default.
- W3089306039 title "Enhanced performance of N-polar AlGaN-based deep-ultraviolet light-emitting diodes" @default.
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- W3089306039 doi "https://doi.org/10.1364/oe.403168" @default.
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