Carrier localization and defect-insensitive optical behaviors of ultraviolet multiple quantum wells grown on patterned AlN nucleation layer
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Accepted manuscript
Embargo End Date:
2022-10-15
Type
ArticleAuthors
Chen, LiDai, Yijun
Li, Liang
Jiang, Jiean
Xu, Houqiang
Li, Kuang-Hui

Ng, Tien Khee

Cui, Mei
Guo, Wei
Sun, Haiding
Ye, Jichun
KAUST Department
Material Science and Engineering ProgramMaterial Science and Engineering
Physical Science and Engineering (PSE) Division
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Date
2020-10-15Embargo End Date
2022-10-15Submitted Date
2020-04-06Permanent link to this record
http://hdl.handle.net/10754/666910
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Show full item recordAbstract
In this work, we report a significantly boosted defect-insensitive ultraviolet emission from InGaN/GaN multiple quantum wells (MQWs) grown on patterned AlN nucleation layer (NL) compared to samples grown on uniform NL. Carrier localization is clearly illustrated for MQWs grown on patterned AlN NL as evidenced by an S-shape profile from temperature-dependent photoluminescence characterization. The underlying mechanism for the carrier localization is demonstrated to correlate with partial relaxation of compressive strains inside epitaxial thin films. This work illustrates that carrier localization can be achieved in MQWs with very low indium content by the adoption of patterned NL during growth, and provides a promising route towards the realization of high-efficiency ultraviolet emitter.Citation
Chen, L., Dai, Y., Li, L., Jiang, J., Xu, H., Li, K., … Ye, J. (2021). Carrier localization and defect-insensitive optical behaviors of ultraviolet multiple quantum wells grown on patterned AlN nucleation layer. Journal of Alloys and Compounds, 861, 157589. doi:10.1016/j.jallcom.2020.157589Sponsors
This work was supported by National Key Research and Development Program of China (2016YFB0400802), National Natural Science Foundation of China (61974149, 61704176), Key Research and Development Program of Zhejiang Province (2019C01080, 2020C01145), and Ningbo Innovation 2025 Major Project (2018B10088, 2019B10121).Publisher
Elsevier BVJournal
Journal of Alloys and CompoundsAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S0925838820339530ae974a485f413a2113503eed53cd6c53
10.1016/j.jallcom.2020.157589