Hybrid green LEDs based on n-ZnO/(InGaN/GaN) multi-quantum-wells/p-GaN

C. Bayram; F. Hosseini Teherani; David J. Rogers; Manijeh Razeghi

doi:10.1117/12.817033

28 February 2009 Hybrid green LEDs based on n-ZnO/(InGaN/GaN) multi-quantum-wells/p-GaN

C. Bayram, F. Hosseini Teherani, David J. Rogers, Manijeh Razeghi

Proceedings Volume 7217, Zinc Oxide Materials and Devices IV; 72170P (2009) https://doi.org/10.1117/12.817033
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

Hybrid green light-emitting diodes (LEDs) comprised of n-ZnO/(InGaN/GaN) multi-quantum-wells/p-GaN were grown on semi-insulating AlN/sapphire using pulsed laser deposition for the n-ZnO and metal organic chemical vapor deposition for the other layers. X-ray diffraction revealed that high crystallographic quality was preserved after the n- ZnO growth. LEDs showed a turn-on voltage of 2.5 V and a room temperature electroluminescence (EL) centered at 510 nm. A blueshift and narrowing of the EL peak with increasing current was attributed to bandgap renormalization. The results indicate that hybrid LED structures could hold the prospect for the development of green LEDs with superior performance.

Citation Download Citation

C. Bayram, F. Hosseini Teherani, David J. Rogers, and Manijeh Razeghi "Hybrid green LEDs based on n-ZnO/(InGaN/GaN) multi-quantum-wells/p-GaN", Proc. SPIE 7217, Zinc Oxide Materials and Devices IV, 72170P (28 February 2009); https://doi.org/10.1117/12.817033

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