Hajo, Ahid S. ; Yilmazoglu, Oktay ; Dadgar, Armin ; Kuppers, Franko ; Kusserow, Thomas (2021)
Reliable GaN-Based THz Gunn Diodes With Side-Contact and Field-Plate Technologies.
In: IEEE Access, 2020, 8
doi: 10.26083/tuprints-00017517
Article, Secondary publication, Publisher's Version
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| Item Type: | Article |
|---|---|
| Type of entry: | Secondary publication |
| Title: | Reliable GaN-Based THz Gunn Diodes With Side-Contact and Field-Plate Technologies |
| Language: | English |
| Date: | 2021 |
| Year of primary publication: | 2020 |
| Publisher: | IEEE |
| Journal or Publication Title: | IEEE Access |
| Volume of the journal: | 8 |
| DOI: | 10.26083/tuprints-00017517 |
| Corresponding Links: | |
| Origin: | Secondary publication via sponsored Golden Open Access |
| Abstract: | For the first time, Gallium Nitride(GaN)-based Gunn diodes with side-contact and fieldplate technologies were fabricated and measured with reliable characteristics. A high negative differential resistance (NDR) region was characterised for the GaN Gunn effect using side-contact technology. The I-V measurement of the THz diode showed the ohmic and the Gunn effect region with high forward current of 0.65 A and high current drop of approximately 100 mA for a small ring diode width wd of 1.5µm with 600 nm effective diode height hd at a small threshold voltage of 8.5 V. This THz diode worked stable due to good passivation as protection from electro-migration and ionisation between the electrodes as well as a better heat sink to the GaN substrate and large side-contacts. The diodes can provide for this thickness a fundamental frequency in the range of 0.3 - 0.4 THz with reliable characteristics. |
| Status: | Publisher's Version |
| URN: | urn:nbn:de:tuda-tuprints-175171 |
| Classification DDC: | 600 Technology, medicine, applied sciences > 600 Technology |
| Divisions: | 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) > Photonics and Optical Communications 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP) > Terahertz Systems Technology |
| Date Deposited: | 09 Feb 2021 10:59 |
| Last Modified: | 01 Jun 2021 13:49 |
| URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/17517 |
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