| Author | Sun, Haiding |
| Author | Wu, Feng |
| Author | Park, Young Jae |
| Author | Al tahtamouni, T. M. |
| Author | Liao, Che Hao |
| Author | Guo, Wenzhe |
| Author | Alfaraj, Nasir |
| Author | Li, Kuang Hui |
| Author | Anjum, Dalaver H. |
| Author | Detchprohm, Theeradetch |
| Author | Dupuis, Russell D. |
| Author | Li, Xiaohang |
| Available date | 2023-08-28T08:58:41Z |
| Publication Date | 2018-01-01 |
| Publication Name | Applied Physics Express |
| Identifier | http://dx.doi.org/10.7567/APEX.11.011001 |
| Citation | Sun, 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. |
| ISSN | 18820778 |
| URI | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040022105&origin=inward |
| URI | http://hdl.handle.net/10576/46828 |
| Abstract | We 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. |
| Sponsor | Acknowledgments 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. |
| Language | en |
| Publisher | Japan Society of Applied Physics |
| Subject | Aluminum alloys
|
| Title | Revealing microstructure and dislocation behavior in BAlN/AlGaN heterostructures |
| Type | Article |
| Issue Number | 1 |
| Volume Number | 11 |
