High-speed GaN/GaInN nanowire array light-emitting diode on silicon(111).
Nano Lett
; 15(4): 2318-23, 2015 Apr 08.
Article
em En
| MEDLINE
| ID: mdl-25758029
The high speed on-off performance of GaN-based light-emitting diodes (LEDs) grown in c-plane direction is limited by long carrier lifetimes caused by spontaneous and piezoelectric polarization. This work demonstrates that this limitation can be overcome by m-planar core-shell InGaN/GaN nanowire LEDs grown on Si(111). Time-resolved electroluminescence studies exhibit 90-10% rise- and fall-times of about 220 ps under GHz electrical excitation. The data underline the potential of these devices for optical data communication in polymer fibers and free space.
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MEDLINE
Assunto principal:
Semicondutores
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Silício
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Iluminação
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Nanofios
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Gálio
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Índio
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article