244 citations · 811 across the 15 of their papers we have counts for
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Universal radiation tolerant semiconductor
Alexander Azarov, Javier García Fernández, Junlei Zhao +10
Radiation tolerance is determined as the ability of crystalline materials to withstand the accumulation of the radiation induced disorder. Nevertheless, for sufficiently high fluen…
Visualization of steps and surface reconstructions in Helium Ion Microscopy with atomic precision
Gregor Hlawacek, Maciej Jankowski, Herbert Wormeester +3
Helium Ion Microscopy is known for its surface sensitivity and high lateral resolution. Here, we present results of a Helium Ion Microscopy based investigation of a surface confine…
Helium Ion Microscopy
Gregor Hlawacek, Vasilisa Veligura, Raoul van Gastel +1
Helium Ion Microcopy (HIM) based on Gas Field Ion Sources (GFIS) represents a new ultra high resolution microscopy and nano-fabrication technique. It is an enabling technology that…
To see or not to see: Imaging surfactant coated nano--particles using HIM and SEM
Gregor Hlawacek, Imtiaz Ahmad, Mark A. Smithers +1
Nano--particles are of great interest in fundamental and applied research. However, their accurate visualization is often difficult and the interpretation of the obtained images ca…
Nucleation and growth of thin films of rod--like conjugated molecules
Gregor Hlawacek, Christian Teichert
Thin films formed from small molecules rapidly gain importance in different technological fields. To explain their growth, methods developed for zero--dimensional atoms as the film…
The influence of substrate temperature on growth of para-sexiphenyl thin films on Ir{111} supported graphene studied by LEEM
Fawad S. Khokhar, Gregor Hlawacek, Raoul van Gastel +3
The growth of para-sexiphenyl (6P) thin films as a function of substrate temperature on Ir{111} supported graphene flakes has been studied in real-time with Low Energy Electron Mic…
Hierarchy of adhesion forces in patterns of photoreactive surface layers
G. Hlawacek, Q. Shen, C. Teichert +3
Precise control of surface properties including electrical characteristics, wettability, and friction is a prerequisite for manufacturing modern organic electronic devices. The suc…