Synthesis of In0.1Ga0.9N/GaN structures grown by MOCVD and MBE for high speed optoelectronics

Bandar Alshehri, Karim Dogheche, Sofiane Belahsene, Bilal Janjua, Abderrahim Ramdane, Gilles Patriarche, Tien Khee Ng, Boon S-Ooi, Didier Decoster, Elhadj Dogheche

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


In this work, we report a comparative investigation of InxGa1-xN (SL) and InxGa1-xN/GaN (MQW) structures with an indium content equivalent to x=10%. Both structures are grown on (0001) sapphire substrates using MOCVD and MBE growth techniques. Optical properties are evaluated for samples using PL characteristics. Critical differences between the resulting epitaxy are observed. Microstructures have been assessed in terms of crystalline quality, density of dislocations and surface morphology. We have focused our study towards the fabrication of vertical PIN photodiodes. The technological process has been optimized as a function of the material structure. From the optical and electrical characteristics, this study demonstrates the benefit of InGaN/GaN MQW grown by MOCVD in comparison with MBE for high speed optoelectronic applications.
Original languageEnglish (US)
Pages (from-to)1735-1742
Number of pages8
JournalMRS Advances
Issue number23
StatePublished - Jun 7 2016


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