Multi-channel AlN/GaN Schottky barrier diodes
Abstract This paper reports Schottky barrier diodes (SBDs) based on a multi-channel AlN/GaN heterostructure grown by metal-organic chemical vapor deposition. The proposed heterostructure with five channels achieved an extremely low R sh (69 Ω/□), thanks to a high <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub> <mml:mi>N</mml:mi> <mml:mi mathvariant="italic">s</mml:mi> </mml:msub> </mml:math> of 6.7 × 10 13 cm −2 . The SBDs exhibit a low on voltage of 0.5 V, a small forward voltage of 1.1 V, and high current of 1050 mA mm −1 . Temperature-dependent I–V characteristics of the proposed device revealed that both thermionic emission and tunneling contributed to the current transport. This work paves the way for development of high-performance multi-channel AlN/GaN devices for RF and power applications.
Authors
- Chee Lip Gan (ORCID: https://orcid.org/0000-0002-8420-3168)
- Geok Ing Ng (ORCID: https://orcid.org/0000-0002-9857-4189)
- S. Arulkumaran (ORCID: https://orcid.org/0000-0001-7299-8840)
- Qingyun Xie (ORCID: https://orcid.org/0000-0002-8368-1440)
- Hanchao Li (ORCID: https://orcid.org/0009-0009-2921-3353)
- S.C. Foo
- Kumud Ranjan (ORCID: https://orcid.org/0000-0003-2156-5716)
- Pradip Dalapati (ORCID: https://orcid.org/0000-0001-9021-726X)
- Yue Wang (ORCID: https://orcid.org/0009-0000-9330-9012)
- Hanlin Xie (ORCID: https://orcid.org/0000-0002-1974-2018)
- Siyu Liu (ORCID: https://orcid.org/0000-0002-2665-8199)
- Hui Teng Tan
Institutions
- Agency for Science, Technology and Research (SG)
- Nanyang Technological University (SG)
- Water Research Institute (SK)
- Singapore-MIT Alliance for Research and Technology (SG)
Publication Details
- Journal
- Applied Physics Express
- Published
- 2024-12-24
- DOI
- https://doi.org/10.35848/1882-0786/ada2d8
- Citations
- 1
- Primary Topic
- GaN-based semiconductor devices and materials
- Type
- article
- Field-Weighted Citation Impact
- 0.31
Funders
- Agency for Science, Technology and Research
- National Research Foundation Singapore