Stefan Kowarik
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Explore the profile of Stefan Kowarik including associated specialties, affiliations and a list of published articles.
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24
Citations
157
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Recent Articles
11.
Pithan L, Nabok D, Cocchi C, Beyer P, Duva G, Simbrunner J, et al.
J Chem Phys
. 2018 Oct;
149(14):144701.
PMID: 30316275
We present a combined experimental and theoretical study to solve the unit-cell and molecular arrangement of the tetracene thin film (TF) phase. TF phases, also known as substrate induced phases...
12.
Zykov A, Bommel S, Wolf C, Pithan L, Weber C, Beyer P, et al.
J Chem Phys
. 2017 Feb;
146(5):052803.
PMID: 28178832
We study nucleation and multilayer growth of the perylene derivative PTCDI-C and find a persistent layer-by-layer growth, transformation of island shapes, and an enhancement of molecular diffusivity in upper monolayers...
13.
Pithan L, Beyer P, Bogula L, Zykov A, Schafer P, Rawle J, et al.
Adv Mater
. 2016 Dec;
29(6).
PMID: 27906475
A novel strategy for direct photoalignment of molecular materials using optothermal re-orientation is introduced. Photoalignment for molecular materials such as the organic semiconductor tetracene is shown, without relying on additional...
14.
Kowarik S
J Phys Condens Matter
. 2016 Nov;
29(4):043003.
PMID: 27875334
Thin-film growth is important for novel functional materials and new generations of devices. The non-equilibrium growth physics involved is very challenging, because the energy landscape for atomic scale processes is...
15.
Klett B, Cocchi C, Pithan L, Kowarik S, Draxl C
Phys Chem Chem Phys
. 2016 May;
18(21):14603-9.
PMID: 27181997
We present a joint theoretical and experimental study to investigate polymorphism in α-sexithiophene (6T) crystals. By means of density-functional theory calculations, we clarify that the low-temperature phase is favorable over...
16.
Weber C, Liebig T, Gensler M, Zykov A, Pithan L, Rabe J, et al.
Sci Rep
. 2016 May;
6:25605.
PMID: 27161608
Next-generation molecular devices and machines demand the integration of molecular switches into hierarchical assemblies to amplify the response of the system from the molecular level to the meso- or macro-scale....
17.
Pithan L, Meister E, Jin C, Weber C, Zykov A, Sauer K, et al.
J Chem Phys
. 2015 Nov;
143(16):164707.
PMID: 26520543
We use thermal annealing to improve smoothness and to increase the lateral size of crystalline islands of n-tetratetracontane (TTC, C44H90) films. With in situ x-ray diffraction, we find an optimum...
18.
Barth C, Wolters J, Schell A, Probst J, Schoengen M, Lochel B, et al.
Opt Express
. 2015 May;
23(8):9803-11.
PMID: 25969021
We report on an experimental and theoretical investigation of an integrated Bragg-like grating coupler for near-vertical scattering of light from photonic crystal waveguides with an ultra-small footprint of a few...
19.
Beyer P, Breuer T, Ndiaye S, Zykov A, Viertel A, Gensler M, et al.
ACS Appl Mater Interfaces
. 2014 Nov;
6(23):21484-93.
PMID: 25398074
The microstructure, morphology, and growth dynamics of hexa-peri-hexabenzocoronene (HBC, C42H18) thin films deposited on inert substrates of similar surface energies are studied with particular emphasis on the influence of substrate...
20.
Ruck-Braun K, Petersen M, Michalik F, Hebert A, Przyrembel D, Weber C, et al.
Langmuir
. 2013 Aug;
29(37):11758-69.
PMID: 23971741
We have prepared high-quality, densely packed, self-assembled monolayers (SAMs) of carboxy-terminated alkyl chains on Si(111). The samples were made by thermal grafting of methyl undec-10-enoate under an inert atmosphere and...