DocumentCode
778253
Title
Measured negative differential resistivity for GaN Gunn diodes on GaN substrate
Author
Yilmazoglu, O. ; Mutamba, K. ; Pavlidis, D. ; Karaduman, T.
Author_Institution
Dept. of High Frequency Electron., Tech. Univ. Darmstadt
Volume
43
Issue
8
fYear
2007
Firstpage
480
Lastpage
482
Abstract
Current-voltage characteristics obtained by pulse-biasing GaN Gunn diodes on GaN substrate showed a wide negative differential resistance (NDR) region. Electrical fields of up to twice the threshold value did not lead to any electromigration effects from the contacts. The electron drift-velocity (vD) was estimated to be 1.9times107 cm/s. This represents the first demonstration of a stable NDR with a vertical GaN-based Gunn device
Keywords
Gunn diodes; III-V semiconductors; gallium compounds; substrates; GaN-GaN; Gunn diodes; current-voltage characteristics; negative differential resistivity;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20070658
Filename
4155613
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