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Oliver Ambacher

Researcher at Fraunhofer Society

Publications -  862
Citations -  29006

Oliver Ambacher is an academic researcher from Fraunhofer Society. The author has contributed to research in topics: Amplifier & Monolithic microwave integrated circuit. The author has an hindex of 64, co-authored 848 publications receiving 26256 citations. Previous affiliations of Oliver Ambacher include Osram & Siemens.

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Journal ArticleDOI

Experimental evidence of different hydrogen donors in n -type InN

Giorgio Pettinari, +11 more
- 11 Mar 2008 - 
TL;DR: The multiform donor nature of hydrogen in n-type indium nitride is experimentally observed in samples exposed to atomic hydrogen as mentioned in this paper, which reveals a tenfold increase in electron concentration and the formation of a shallow donor band upon hydrogen incorporation.
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Ion‐Induced Modulation of Channel Currents in AlGaN/GaN High‐Electron‐Mobility Transistors

R. Neuberger, +3 more
- 01 Feb 2001 - 
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Metalorganic chemical vapor phase deposition of AlScN/GaN heterostructures

Jana Ligl, +8 more
- 18 May 2020 - 
TL;DR: In this paper, the impact of growth parameters on thin AlScN/GaN heterostructures was investigated, with the focus on surface morphology, crystal quality, and incorporation of impurities.
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Investigations of MBE grown InN and the influence of sputtering on the surface composition

Stefan Krischok, +12 more
- 20 Sep 2004 - 
TL;DR: In this article, X-ray photoelectron spectroscopy (XPS), ultraviolet photo-electron (UPS), Auger electron spectrograms (AES), and electron energy loss spectrograph (EELS) were used to determine the chemical composition of the sample surfaces before and after ion bombardment.
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DNA‐sensor based on AlGaN/GaN high electron mobility transistor

Stefan U. Schwarz, +9 more
- 01 Jul 2011 - 
TL;DR: In this article, a novel HEMT-based DNA hybridization sensor is presented, which uses a system of linker molecules to covalently bond the probe DNA to the semiconductor surface.