H
Hans-Gerd Boyen
Researcher at University of Hasselt
Publications - 153
Citations - 9849
Hans-Gerd Boyen is an academic researcher from University of Hasselt. The author has contributed to research in topics: X-ray photoelectron spectroscopy & Thin film. The author has an hindex of 39, co-authored 149 publications receiving 8512 citations. Previous affiliations of Hans-Gerd Boyen include University of Ulm & University of Duisburg-Essen.
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Journal ArticleDOI
Local density of states effects at the metal-molecule interfaces in a molecular device.
Hans-Gerd Boyen,Paul J. Ziemann,Ulf Wiedwald,Valentina Ivanova,Dieter M. Kolb,Sung Sakong,Axel Gross,Andriy Romanyuk,Michael Büttner,Peter Oelhafen +9 more
TL;DR: Electron spectroscopy together with density functional theory calculations revealed strong interactions between the molecules and the islands due to Pd–N bonds, resulting in a drastically reduced density of states at the Fermi level EF for a nearly closed Pd monolayer, and even non-metallic properties for nanometre-sized islands.
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A Universal Deposition Protocol for Planar Heterojunction Solar Cells with High Efficiency Based on Hybrid Lead Halide Perovskite Families.
Bert Conings,Bert Conings,Aslihan Babayigit,Aslihan Babayigit,Matthew T. Klug,Sai Bai,Sai Bai,Nicolas Gauquelin,Nobuya Sakai,Jacob Tse-Wei Wang,Johan Verbeeck,Hans-Gerd Boyen,Henry J. Snaith +12 more
TL;DR: A robust and expedient gas quenching method is developed for the solution deposition of hybrid perovskite thin films exhibiting excellent film morphology and commensurate high performance in both regular and inverted structured solar cell architectures.
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Metal deposition onto thiol-covered gold: Platinum on a 4-mercaptopyridine SAM
Mila Manolova,Valentina Ivanova,Dieter M. Kolb,Hans-Gerd Boyen,Paul J. Ziemann,Michael Büttner,Andriy Romanyuk,Peter Oelhafen +7 more
TL;DR: In this paper, the authors describe a technique that allows to deposit metal on top of a self-assembled monolayer (SAM) by forming monoatomic high platinum islands on a 4-mercaptopyridine SAM on Au(1.1) by immersing the SAM-covered gold electrode in an aqueous solution of K 2 PtCl 4 without potential control.
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Sequential ion-induced stress relaxation and growth: A way to prepare stress-relieved thick films of cubic boron nitride
TL;DR: In this article, it was shown that the bombardment of high quality cubic (c-) BN films with 300 keV Ar+ ions leads to a strong relaxation of their compressive stresses without destroying the cubic phase if the total ion fluence is kept below an upper limit.
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X-ray photoelectron spectroscopy study on gold nanoparticles supported on diamond
Hans-Gerd Boyen,Thomas Herzog,G. Kästle,F. Weigl,Paul J. Ziemann,Joachim P. Spatz,Martin Möller,R. Wahrenberg,M. G. Garnier,Peter Oelhafen +9 more
TL;DR: By exploiting the self-organization of metal salt-loaded diblock copolymer micelles followed by a plasma-induced removal of the polymer matrix, well-separated gold particles ranging in size from 1.6 to 10 nm have been prepared on top of diamond substrates as mentioned in this paper.