Abstract
Blue-green InGaN/GaN multiple-quantum-well light emitting diodes with peak emission wavelength of 480nm were grown on low extended defect density semipolar (112̄2) bulk GaN substrates by conventional metal organic chemical vapour deposition. The calculated external quantum efficiency and output power at a drive current of 20mA under pulsed operations (10 duty cycle) were 18 and 9mW, respectively. The device exhibited small electroluminescence wavelength shift (4.5nm) with drive currents ranging from 30 to 100mA, indicating significant reduction of polarisation-related internal electric fields.
Original language | English |
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Pages (from-to) | 825-827 |
Number of pages | 3 |
Journal | Electronics Letters |
Volume | 43 |
Issue number | 15 |
DOIs | |
State | Published - 2007 |