AlGaInP red-emitting light emitting diode under extremely high pulsed pumping


Autoria(s): Yadav, Amit; Titkov, Ilya; Sokolovskii, Grigorii S.; Karpov, Sergey Yu; Dudelev, Vladislav V.; Soboleva, Ksenya K.; Strassburg, Martin; Pietzonka, Ines; Lugauer, Hans-Juergen; Rafailov, Edik U.
Contribuinte(s)

Jeon, Heonsu

Tu, Li-Wei

Krames, Michael R.

Strassburg, Martin

Data(s)

08/03/2016

Resumo

Efficiency of commercial 620 nm InAlGaP Golden Dragon-cased high-power LEDs has been studied under extremely high pump current density up to 4.5 kA/cm2 and pulse duration from microsecond down to sub-nanosecond range. No efficiency decrease and negligible red shift of the emission wavelength is observed in the whole range of drive currents at nanosecond-range pulses with duty cycles well below 1%. Analysis of the pulse-duration dependence of the LED efficiency and emission spectrum suggests the active region overheating to be the major mechanism of the LED efficiency reduction at higher pumping, dominating over the electron overflow and Auger recombination.

Formato

application/pdf

Identificador

http://eprints.aston.ac.uk/27751/1/AlGaInP_red_emitting_light_emitting_diode.pdf

Yadav, Amit; Titkov, Ilya; Sokolovskii, Grigorii S.; Karpov, Sergey Yu; Dudelev, Vladislav V.; Soboleva, Ksenya K.; Strassburg, Martin; Pietzonka, Ines; Lugauer, Hans-Juergen and Rafailov, Edik U. (2016). AlGaInP red-emitting light emitting diode under extremely high pulsed pumping. IN: Light-emitting diodes. Jeon, Heonsu; Tu, Li-Wei; Krames, Michael R. and Strassburg, Martin (eds) SPIE proceedings . Bellingham, WA (US): SPIE.

Publicador

SPIE

Relação

http://eprints.aston.ac.uk/27751/

Tipo

Book Section

NonPeerReviewed