Abstract

We report the demonstration of the first axial AlInN ultraviolet core-shell nanowire light-emitting diodes with highly stable emission in the ultraviolet wavelength range. During epitaxial growth of the AlInN layer, an AlInN shell is spontaneously formed, resulting in reduced nonradiative recombination on the nanowire surface. The AlInN nanowires exhibit a high internal quantum efficiency of ~52% at room temperature for emission at 295 nm. The peak emission wavelength can be varied from 290 nm to 355 nm by changing the growth conditions. Moreover, significantly strong transverse magnetic (TM) polarized emission is recorded, which is ~4 times stronger than the transverse electric (TE) polarized light at 295 nm. This study provides an alternative approach for the fabrication of new types of high-performance ultraviolet light emitters.

Details

Title
Epitaxial Growth and Characterization of AlInN-Based Core-Shell Nanowire Light Emitting Diodes Operating in the Ultraviolet Spectrum
Author
Velpula, Ravi Teja 1   VIAFID ORCID Logo  ; Jain Barsha 1 ; Rajan, Philip Moab 1 ; Nguyen, Hoang Duy 2 ; Wang, Renjie 3 ; Nguyen Hieu Pham Trung 1   VIAFID ORCID Logo 

1  New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Boulevard, Department of Electrical and Computer Engineering, Newark, United States (GRID:grid.260896.3) (ISNI:0000 0001 2166 4955) 
2  Institute of Chemical Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam (GRID:grid.267849.6) (ISNI:0000 0001 2105 6888) 
3  McMaster University, Department of Engineering Physics, Ontario, Canada (GRID:grid.25073.33) (ISNI:0000 0004 1936 8227) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-020-59442-0
ProQuest document ID
2354710057
Copyright
This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.