Deep-ultraviolet integrated photonic and optoelectronic devices: A prospect of the hybridization of group III–nitrides, III–oxides, and two-dimensional materials

Abstract
Progress in the design and fabrication of ultraviolet and deep-ultraviolet group III–nitride optoelectronic devices, based on aluminum gallium nitride and boron nitride and their alloys, and the heterogeneous integration with two-dimensional and oxide-based materials is reviewed. We emphasize wide-bandgap nitride compound semiconductors (i.e., (B, Al, Ga)N) as the deep-ultraviolet materials of interest, and two-dimensional materials, namely graphene, two-dimensional boron nitride, and two-dimensional transition metal dichalcogenides, along with gallium oxide, as the hybrid integrated materials. We examine their crystallographic properties and elaborate on the challenges that hinder the realization of efficient and reliable ultraviolet and deep-ultraviolet devices. In this article we provide an overview of aluminum nitride, sapphire, and gallium oxide as platforms for deep-ultraviolet optoelectronic devices, in which we criticize the status of sapphire as a platform for efficient deep-ultraviolet devices and detail advancements in device growth and fabrication on aluminum nitride and gallium oxide substrates. A critical review of the current status of deep-ultraviolet light emission and detection materials and devices is provided.

Citation
Alfaraj, N., Min, J.-W., Kang, C. H., Alatawi, A. A., Priante, D., Subedi, R. C., … Ooi, B. S. (2019). Deep-ultraviolet integrated photonic and optoelectronic devices: A prospect of the hybridization of group III–nitrides, III–oxides, and two-dimensional materials. Journal of Semiconductors, 40(12), 121801. doi:10.1088/1674-4926/40/12/121801

Acknowledgements
We acknowledge the financial support from the King Abdulaziz City for Science and Technology (KACST) under grant no. KACST TIC R2-FP-008. This work was partially supported by the King Abdullah University of Science and Technology (KAUST) baseline funding no. BAS/1/1614-01-01, and MBE equipment funding no. C/M-20000-12-001-77 and KCR/1/4055-01-01.

Publisher
IOP Publishing

Journal
Journal of Semiconductors

DOI
10.1088/1674-4926/40/12/121801

Additional Links
https://iopscience.iop.org/article/10.1088/1674-4926/40/12/121801

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