Filling the gap: Li-intercalated graphene on Ir(111). - In: The journal of physical chemistry, ISSN 1932-7455, Bd. 120 (2016), 9, S. 5067-5073
Graphene on Ir(111) was intercalated by Li. The intercalant formed a variety of superstructures with increasing coverage. For all superstructures, the moiré pattern of pristine graphene on Ir(111) was discernible. At low coverage, the intercalant exhibited a disperse pattern of elementary assemblies that served as building blocks for Li-induced structures at higher coverage. In contrast to previous reports on other intercalants, Li intercalation gave rise to isotropic assemblies in the low coverage range. Pattern formation was qualitatively rationalized in terms of different energy costs and gains and a corresponding ranking of preferred intercalation regions. While for intermediate Li coverage an ordered intercalant superstructure was observed, higher coverage led to the decoration of step edges with adsorbed Li clusters.
http://dx.doi.org/10.1021/acs.jpcc.6b00729
Application of nanostructuring, nanomaterials and micro-nano-integration for improved components and system's performance. - In: 2016 Pan Pacific Microelectronics Symposium (Pan Pacific), ISBN 978-0-9888873-9-8, (2016), insges. 10 S.
http://dx.doi.org/10.1109/PanPacific.2016.7428387
Interaction of indium oxide nanoparticle film surfaces with ozone, oxygen and water. - In: Physica status solidi. Applications and materials science. - Weinheim : Wiley-VCH, 2005- , ISSN: 1862-6319 , ZDB-ID: 1481091-8, ISSN 1862-6319, Bd. 213 (2016), 3, S. 831-838
http://dx.doi.org/10.1002/pssa.201532458
Enhanced photoelectrochemical and photocatalytic activity in visible-light-driven Ag/BiVO4 inverse opals. - In: Applied physics letters, ISSN 1077-3118, Bd. 108 (2016), 9, S. 093902, insges. 5 S.
Im Titel ist "4" tiefgestellt
http://dx.doi.org/10.1063/1.4943181
Robust phonon-plasmon coupling in quasifreestanding graphene on silicon carbide. - In: Physical review letters, ISSN 1079-7114, Bd. 116 (2016), 10, 106802, insges. 5 S.
https://doi.org/10.1103/PhysRevLett.116.106802
Spatially resolved monitoring of drying of hierarchical porous organic networks. - In: Langmuir, ISSN 1520-5827, Bd. 32 (2016), 8, S. 2067-2074
http://dx.doi.org/10.1021/acs.langmuir.5b04230
NMR relaxation induced by iron oxide particles: testing theoretical models. - In: Nanotechnology, ISSN 1361-6528, Bd. 27 (2016), 15, 155706, S. 1-11
http://dx.doi.org/10.1088/0957-4484/27/15/155706
Ballistic anisotropic magnetoresistance of single-atom contacts. - In: Nano letters, ISSN 1530-6992, Bd. 16 (2016), 2, S. 1450-1454
Anisotropic magnetoresistance, that is, the sensitivity of the electrical resistance of magnetic materials on the magnetization direction, is expected to be strongly enhanced in ballistic transport through nanoscale junctions. However, unambiguous experimental evidence of this effect is difficult to achieve. We utilize single-atom junctions to measure this ballistic anisotropic magnetoresistance (AMR). Single Co and Ir atoms are deposited on domains and domain walls of ferromagnetic Fe layers on W(110) to control their magnetization directions. They are contacted with nonmagnetic tips in a low-temperature scanning tunneling microscope to measure the junction conductances. Large changes of the magnetoresistance occur from the tunneling to the ballistic regime due to the competition of localized and delocalized dorbitals, which are differently affected by spin-orbit coupling. This work shows that engineering the AMR at the single atom level is feasible.
http://dx.doi.org/10.1021/acs.nanolett.5b05071
Depopulation of single-phthalocyanine molecular orbitals upon pyrrolic-hydrogen abstraction on graphene. - In: ACS nano, ISSN 1936-086X, Bd. 10 (2016), 2, S. 2010-2016
Single-molecule chemistry with a scanning tunneling microscope has preponderantly been performed on metal surfaces. The molecule metal hybridization, however, is often detrimental to genuine molecular properties and obscures their changes upon chemical reactions. We used graphene on Ir(111) to reduce the coupling between Ir(111) and adsorbed phthalocyanine molecules. By local electron injection from the tip of a scanning tunneling microscope the two pyrrolic H atoms were removed from single phthalocyanines. The detachment of the H atom pair induced a strong modification of the molecular electronic structure, albeit with no change in the adsorption geometry. Spectra and maps of the differential conductance combined with density functional calculations unveiled the entire depopulation of the highest occupied molecular orbital upon H abstraction. Occupied π states of intact molecules are proposed to be emptied via intramolecular electron transfer to dangling states of H-free N atoms.
http://dx.doi.org/10.1021/acsnano.5b06153
Interface analysis on MOVPE grown InP-GaInAs-InP double heterostructures for application in infrared solar cells. - In: Solar energy materials & solar cells, ISSN 1879-3398, Bd. 148 (2016), S. 25-29
http://dx.doi.org/10.1016/j.solmat.2015.09.064