Wurtzite AlGaAs Nanowires

L. Leandro, R. Reznik, J. D. Clement, J. Repän, M. Reynolds, E. V. Ubyivovk, I. V. Shtrom, G. Cirlin, N. Akopian*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Semiconducting nanowires, unlike bulk, can be grown in both wurtzite and zincblende crystal phases. This unique feature allows for growth and investigation of technologically important and previously unexplored materials, such as wurtzite AlGaAs. Here we grow a series of wurtzite AlGaAs nanowires with Al content varying from 0.1 to 0.6, on silicon substrates and through a comparative structural and optical analysis we experimentally derive, for the first time, the formula for the bandgap of wurtzite AlGaAs. Moreover, bright emission and short lifetime of our nanowires suggest that wurtzite AlGaAs is a direct bandgap material.

Original languageEnglish
Article number735
JournalScientific Reports
Issue number1
Publication statusPublished - 1 Dec 2020

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