Study on Efficiency Component Estimation of 405 nm Light Emitting Diodes from Electroluminescence and Photoluminescence Intensities

Study on Efficiency Component Estimation of 405 nm Light Emitting Diodes from Electroluminescence and Photoluminescence Intensities

The Shockley--Read--Hall (SRH) model was applied to the determination of photoluminescence (PL) and electroluminescence (EL) characteristics. From the ratio of the internal quantum efficiency (IQE) obtained from the PL and EL intensities, the carrier injection efficiencies (CIE) for 405 nm LEDs were...

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Veröffentlicht in:Japanese Journal of Applied Physics 2013-08, Vol.52 (8), p.08JL16-08JL16-3
Hauptverfasser: Aoyama, Kazuki, Suzuki, Atsushi, Kitano, Tsukasa, Kamiyama, Satoshi, Takeuchi, Tetsuya, Iwaya, Motoaki, Akasaki, Isamu
Format: Artikel
Sprache:eng
Schlagworte:
Carrier injection
Electroluminescence
Extraction
Fittings
Light-emitting diodes
Mathematical analysis
Mathematical models
Photoluminescence
Quantum efficiency
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Zusammenfassung:The Shockley--Read--Hall (SRH) model was applied to the determination of photoluminescence (PL) and electroluminescence (EL) characteristics. From the ratio of the internal quantum efficiency (IQE) obtained from the PL and EL intensities, the carrier injection efficiencies (CIE) for 405 nm LEDs were derived. All the efficiency components including the IQE, CIE, and light extraction efficiency for 405 nm LEDs were obtained for various structural parameters by fitting the experimental data to theoretical equations of the SRH model.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.52.08JL16