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  Normally-Off Operation of Lateral Field-Effect Transistors Fabricated from Ultrapure GaN/AlGaN Heterostructures

Schmult, S., Wirth, S., Solovyev, V. V., Hentschel, R., Wachowiak, A., Scheinert, T., et al. (2020). Normally-Off Operation of Lateral Field-Effect Transistors Fabricated from Ultrapure GaN/AlGaN Heterostructures. Physica Status Solidi A, 1900732, pp. 1-5. doi:10.1002/pssa.201900732.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-8148-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-814B-5
Genre: Journal Article

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 Creators:
Schmult, Stefan1, Author
Wirth, Steffen2, Author              
Solovyev, Victor V.1, Author
Hentschel, Rico1, Author
Wachowiak, Andre1, Author
Scheinert, Tobias1, Author
Grosser, Andreas1, Author
Kukushkin, Igor V.1, Author
Mikolajick, Thomas1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863460              

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 Abstract: The presence of a 2D electron gas (2DEG) in GaN/AlxGa1-xN heterostructures with low aluminum mole fraction is found to depend on the residual background impurity concentration in the GaN/AlGaN layer stack. At a residual donor level of 2 x 10(16) cm(-3), a 2DEG is absent at 300 K in dark environment. Such a 2DEG can be generated at the GaN/AlGaN interface either by illumination with ultraviolet light or by applying an electrostatic potential. The latter results in inherently normally-off switching characteristics of lateral field-effect transistors.

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Language(s): eng - English
 Dates: 2020-01-152020-01-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000505286700001
DOI: 10.1002/pssa.201900732
 Degree: -

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Title: Physica Status Solidi A
  Other : Physica Status Solidi A: Applications and Materials Science
  Abbreviation : Phys. Status Solidi (a)
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: - Sequence Number: 1900732 Start / End Page: 1 - 5 Identifier: ISSN: 1862-6300
CoNE: https://pure.mpg.de/cone/journals/resource/1862630