Analysis of the abnormal voltage-current behaviors on localized carriers of InGaN/GaN multiple quantum well from electron blocking layer

The effect of an electron blocking layer (EBL) on the V — I curves for GaN/InGaN multiple quantum wells is investigated. For the first time, we found that the curves intersected at 3.012 V, and we investigated the reason for the intersection. The forward voltage in LEDs with a p -AlGaN EBL is larger...

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Published in:Journal of the Korean Physical Society Vol. 63; no. 9; pp. 1784 - 1788
Main Authors: Nam, Giwoong, Kim, Byunggu, Leem, Jae-Young, Lee, Dong-Yul, Kim, Jong Su, Kim, Jin Soo
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 01-11-2013
한국물리학회
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Abstract The effect of an electron blocking layer (EBL) on the V — I curves for GaN/InGaN multiple quantum wells is investigated. For the first time, we found that the curves intersected at 3.012 V, and we investigated the reason for the intersection. The forward voltage in LEDs with a p -AlGaN EBL is larger than it is without the p -AlGaN EBL at low injection currents because the Mg-doping efficiency for the p -GaN layer is higher than that for the p -AlGaN layer. However, the forward voltage in LEDs with a p -AlGaN EBL is smaller than it is without the p -AlGaN EBL at high injection currents because the carriers overflow from the active layer when the injection current increases in LEDs without a p -AlGaN EBL, in case of LEDs with a p -AlGaN EBL, the carriers are blocked by the EBL.
AbstractList The effect of an electron blocking layer (EBL) on the V − I curves for GaN/InGaN multiplequantum wells is investigated. For the first time, we found that the curves intersected at 3.012 V,and we investigated the reason for the intersection. The forward voltage in LEDs with a p-AlGaNEBL is larger than it is without the p-AlGaN EBL at low injection currents because the Mg-dopingefficiency for the p-GaN layer is higher than that for the p-AlGaN layer. However, the forwardvoltage in LEDs with a p-AlGaN EBL is smaller than it is without the p-AlGaN EBL at highinjection currents because the carriers overflow from the active layer when the injection currentincreases in LEDs without a p-AlGaN EBL, in case of LEDs with a p-AlGaN EBL, the carriers areblocked by the EBL. KCI Citation Count: 0
The effect of an electron blocking layer (EBL) on the V — I curves for GaN/InGaN multiple quantum wells is investigated. For the first time, we found that the curves intersected at 3.012 V, and we investigated the reason for the intersection. The forward voltage in LEDs with a p -AlGaN EBL is larger than it is without the p -AlGaN EBL at low injection currents because the Mg-doping efficiency for the p -GaN layer is higher than that for the p -AlGaN layer. However, the forward voltage in LEDs with a p -AlGaN EBL is smaller than it is without the p -AlGaN EBL at high injection currents because the carriers overflow from the active layer when the injection current increases in LEDs without a p -AlGaN EBL, in case of LEDs with a p -AlGaN EBL, the carriers are blocked by the EBL.
Author Kim, Jin Soo
Kim, Byunggu
Lee, Dong-Yul
Kim, Jong Su
Leem, Jae-Young
Nam, Giwoong
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Keywords Electron blocking layer
Electroluminescence
Gallium nitride
Photoluminescence
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Snippet The effect of an electron blocking layer (EBL) on the V — I curves for GaN/InGaN multiple quantum wells is investigated. For the first time, we found that the...
The effect of an electron blocking layer (EBL) on the V − I curves for GaN/InGaN multiplequantum wells is investigated. For the first time, we found that the...
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SubjectTerms Mathematical and Computational Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Theoretical
물리학
Title Analysis of the abnormal voltage-current behaviors on localized carriers of InGaN/GaN multiple quantum well from electron blocking layer
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