Space charge limited current and polarization in AlGaN/GaN nanowires

M. A. Mastro, H. Y. Kim, J. Ahn, Ji Hyun Kim, J. K. Hite, C. R. Eddy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An undoped AlGaN/GaN nanowire displayed a transition at approximately 2V from Ohmic conduction at low drain-source voltage to space charge limited conduction at high drain-source voltage. Growth of the nanowire from a metal seed manifests as a triangular cross-section with one Ga-polar (0001) facet and two semi-polar {-110-1} facets. Conduction was based on a polarization induced two-dimensional electron gas that formed at the (0001) AlGaN/GaN interface. A simulation showed that the surface and the opposing polarization field at the semi-polar AlGaN/GaN interface will distort and reduce the carrier concentration at the (0001) AlGaN/GaN interface.

Original languageEnglish
Title of host publicationECS Transactions
Pages33-38
Number of pages6
Volume41
Edition6
DOIs
Publication statusPublished - 2011 Dec 1
EventState-of-the-Art Program on Compound Semiconductors 53, SOTAPOCS 53 - 220th ECS Meeting - Boston, MA, United States
Duration: 2011 Oct 92011 Oct 14

Other

OtherState-of-the-Art Program on Compound Semiconductors 53, SOTAPOCS 53 - 220th ECS Meeting
CountryUnited States
CityBoston, MA
Period11/10/911/10/14

Fingerprint

Electric space charge
Nanowires
Polarization
Two dimensional electron gas
Electric potential
Carrier concentration
Seed
Metals

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Mastro, M. A., Kim, H. Y., Ahn, J., Kim, J. H., Hite, J. K., & Eddy, C. R. (2011). Space charge limited current and polarization in AlGaN/GaN nanowires. In ECS Transactions (6 ed., Vol. 41, pp. 33-38) https://doi.org/10.1149/1.3629951

Space charge limited current and polarization in AlGaN/GaN nanowires. / Mastro, M. A.; Kim, H. Y.; Ahn, J.; Kim, Ji Hyun; Hite, J. K.; Eddy, C. R.

ECS Transactions. Vol. 41 6. ed. 2011. p. 33-38.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mastro, MA, Kim, HY, Ahn, J, Kim, JH, Hite, JK & Eddy, CR 2011, Space charge limited current and polarization in AlGaN/GaN nanowires. in ECS Transactions. 6 edn, vol. 41, pp. 33-38, State-of-the-Art Program on Compound Semiconductors 53, SOTAPOCS 53 - 220th ECS Meeting, Boston, MA, United States, 11/10/9. https://doi.org/10.1149/1.3629951
Mastro MA, Kim HY, Ahn J, Kim JH, Hite JK, Eddy CR. Space charge limited current and polarization in AlGaN/GaN nanowires. In ECS Transactions. 6 ed. Vol. 41. 2011. p. 33-38 https://doi.org/10.1149/1.3629951
Mastro, M. A. ; Kim, H. Y. ; Ahn, J. ; Kim, Ji Hyun ; Hite, J. K. ; Eddy, C. R. / Space charge limited current and polarization in AlGaN/GaN nanowires. ECS Transactions. Vol. 41 6. ed. 2011. pp. 33-38
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