The effect of vacancy defects on the electronic characteristics of the β-Ga2O3/AlN interface

He, Xiaomin; Song, Xinyang; Hu, Jichao

doi:10.1016/j.jcrysgro.2023.127509

Journal of Crystal Growth

2024

DOI: 10.1016/j.jcrysgro.2023.127509

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The effect of vacancy defects on the electronic characteristics of the β-Ga2O3/AlN interface

Xiaomin He,

Xinyang Song,

Jichao Hu

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III-Nitride/Ga2O3 heterostructure for future power electronics: opportunity and challenges

Shrestha,

Lee,

Teherani

et al. 2024

Quantum Sensing and Nano Electronics and Photonics XX

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Ga 2 O 3 has become the new focal point of high-power semiconductor device research due to its superior capability to handle high voltages in smaller dimensions and with higher efficiencies compared to other commercialized semiconductors. However, the low thermal conductivity of the material is expected to limit device performance. To compensate for the low thermal conductivity of Ga 2 O 3 and to achieve a very high density 2-dimensional electron gas (2DEG), an innovative idea is to combine Ga 2 O 3 with III-Nitrides (which have higher thermal conductivity), such as AlN. However, metal-polar AlN/β-Ga 2 O 3 heterojunction provides type-II heterojunction which are beneficial for optoelectronic application, because of the negative value of specific charge density. On the other hand, N-polar AlN/β-Ga 2 O 3 heterostructures provide higher 2DEG concentration and larger breakdown voltage compared to conventional AlGaN/GaN devices. This advancement would allow the demonstration of RF power transistors with a 10x increase in power density compared to today's State of the Art (SoA) and provide a solution to size, weight, and power-constrained applications.

show abstract

III-Nitride/Ga2O3 heterostructure for future power electronics: opportunity and challenges

Shrestha,

Lee,

Teherani

et al. 2024

Quantum Sensing and Nano Electronics and Photonics XX

View full text Add to dashboard Cite

show abstract

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The effect of vacancy defects on the electronic characteristics of the β-Ga2O3/AlN interface

Cited by 1 publication

References 40 publications

III-Nitride/Ga2O3 heterostructure for future power electronics: opportunity and challenges

III-Nitride/Ga2O3 heterostructure for future power electronics: opportunity and challenges

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