All-MOCVD-grown gallium nitride diodes with ultra-low resistance tunnel junctions
Abstract
In this work, we carefully investigate three important effects including postgrowth activation annealing, delta (δ) dose and magnesium (Mg) buildup delay as well as experimentally demonstrate their influence on the electrical properties of GaN homojunction p–n diodes with a tunnel junction (TJ). The diodes were monolithically grown by metalorganic chemical vapor deposition (MOCVD) in a single growth step. By optimizing the annealing parameters for Mg activation, δ-dose for both donors and acceptors at TJ interfaces, and p+-GaN layer thickness, a significant improvement in tunneling properties is achieved. For the TJs embedded within the continuously-grown, all-MOCVD GaN diode structures, ultra-low voltage penalties of 158 mV and 490 mV are obtained at current densities of 20 A cm–2 and 100 A cm–2, respectively. The diodes with the engineered TJs show a record-low differential resistivity of 1.6 × 10–4 Ω cm2 at 5 kA cm–2.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- The Ohio State Univ., Columbus, OH (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
- OSTI Identifier:
- 1765749
- Report Number(s):
- SAND-2021-1234J
Journal ID: ISSN 0022-3727; 693819
- Grant/Contract Number:
- AC04-94AL85000; 31150; NA-0003525
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. D, Applied Physics
- Additional Journal Information:
- Journal Volume: 54; Journal Issue: 15; Journal ID: ISSN 0022-3727
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; GaN; tunnel junction; MOCVD; delta dose; activation
Citation Formats
Hasan, Syed M. N., Gunning, Brendan P., J.-Eddine, Zane, Chandrasekar, Hareesh, Crawford, Mary H., Armstrong, Andrew, Rajan, Siddharth, and Arafin, Shamsul. All-MOCVD-grown gallium nitride diodes with ultra-low resistance tunnel junctions. United States: N. p., 2021.
Web. doi:10.1088/1361-6463/abdb0f.
Hasan, Syed M. N., Gunning, Brendan P., J.-Eddine, Zane, Chandrasekar, Hareesh, Crawford, Mary H., Armstrong, Andrew, Rajan, Siddharth, & Arafin, Shamsul. All-MOCVD-grown gallium nitride diodes with ultra-low resistance tunnel junctions. United States. https://doi.org/10.1088/1361-6463/abdb0f
Hasan, Syed M. N., Gunning, Brendan P., J.-Eddine, Zane, Chandrasekar, Hareesh, Crawford, Mary H., Armstrong, Andrew, Rajan, Siddharth, and Arafin, Shamsul. Fri .
"All-MOCVD-grown gallium nitride diodes with ultra-low resistance tunnel junctions". United States. https://doi.org/10.1088/1361-6463/abdb0f. https://www.osti.gov/servlets/purl/1765749.
@article{osti_1765749,
title = {All-MOCVD-grown gallium nitride diodes with ultra-low resistance tunnel junctions},
author = {Hasan, Syed M. N. and Gunning, Brendan P. and J.-Eddine, Zane and Chandrasekar, Hareesh and Crawford, Mary H. and Armstrong, Andrew and Rajan, Siddharth and Arafin, Shamsul},
abstractNote = {In this work, we carefully investigate three important effects including postgrowth activation annealing, delta (δ) dose and magnesium (Mg) buildup delay as well as experimentally demonstrate their influence on the electrical properties of GaN homojunction p–n diodes with a tunnel junction (TJ). The diodes were monolithically grown by metalorganic chemical vapor deposition (MOCVD) in a single growth step. By optimizing the annealing parameters for Mg activation, δ-dose for both donors and acceptors at TJ interfaces, and p+-GaN layer thickness, a significant improvement in tunneling properties is achieved. For the TJs embedded within the continuously-grown, all-MOCVD GaN diode structures, ultra-low voltage penalties of 158 mV and 490 mV are obtained at current densities of 20 A cm–2 and 100 A cm–2, respectively. The diodes with the engineered TJs show a record-low differential resistivity of 1.6 × 10–4 Ω cm2 at 5 kA cm–2.},
doi = {10.1088/1361-6463/abdb0f},
journal = {Journal of Physics. D, Applied Physics},
number = 15,
volume = 54,
place = {United States},
year = {Fri Jan 29 00:00:00 EST 2021},
month = {Fri Jan 29 00:00:00 EST 2021}
}
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