Show simple item record

AuthorSun, Haiding
AuthorWu, Feng
AuthorPark, Young Jae
AuthorAl tahtamouni, T. M.
AuthorLiao, Che Hao
AuthorGuo, Wenzhe
AuthorAlfaraj, Nasir
AuthorLi, Kuang Hui
AuthorAnjum, Dalaver H.
AuthorDetchprohm, Theeradetch
AuthorDupuis, Russell D.
AuthorLi, Xiaohang
Available date2023-08-28T08:58:41Z
Publication Date2018-01-01
Publication NameApplied Physics Express
Identifierhttp://dx.doi.org/10.7567/APEX.11.011001
CitationSun, H., Wu, F., Park, Y. J., Liao, C. H., Guo, W., Alfaraj, N., ... & Li, X. (2017). Revealing microstructure and dislocation behavior in BAlN/AlGaN heterostructures. Applied Physics Express, 11(1), 011001.‏
ISSN18820778
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040022105&origin=inward
URIhttp://hdl.handle.net/10576/46828
AbstractWe reveal the microstructure and dislocation behavior in 20-pair B0.14Al0.86N/Al0.70Ga0.30N multiple-stack heterostructures (MSHs) exhibiting an increasing dislocation density along the c-axis, which is attributed to the continuous generation of dislocations (edge and mixed-type) within the individual B0.14Al0.86N layers. At the MSH interfaces, the threading dislocations were accompanied by a string of V-shape pits extending to the surface, leading to interface roughening and the formation of surface columnar features. Strain maps indicated an approximately 1.5% tensile strain and 1% compressive strain in the B0.14Al0.86N and Al0.70Ga0.30N layers, respectively. Twin structures were observed, and the MSH eventually changed from monocrystalline to polycrystalline.
SponsorAcknowledgments The KAUST authors acknowledge the support of the GCC Research Program REP=1=3189-01-01, Baseline BAS=1=1664-01-01, and Equipment BAS=1=1664-01-07. The work at QU was supported by the GCC Research Program GCC-2017-007. The work at the Georgia Institute of Technology was supported in part by DARPA under Grant No. W911NF-15-1-0026 and NSF under Grant No. DMR-1410874. R.D.D. acknowledges the additional support of the Steve W. Chaddick Endowed Chair in Electro-Optics and Georgia Research Alliance.
Languageen
PublisherJapan Society of Applied Physics
SubjectAluminum alloys
TitleRevealing microstructure and dislocation behavior in BAlN/AlGaN heterostructures
TypeArticle
Issue Number1
Volume Number11
dc.accessType Open Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record