Publications of Prof. Dr. W. Daum

• B. Borkenhangen, A. Paszuk, F. N. Knoop, et al.
  Structure and Origin of Antiphase Domains and Related Defects in Thin GaP Epilayers on As-Modified Si(100)
  Cryst. Growth Des. 22, 7040−7049 (2022)  DOI: 10.1021/acs.cgd.2c00697

• N. Yulianto, A. D. Refino, A. Syring, et al.
  Wafer-scale transfer route for top–down III-nitride nanowire LED arrays based on the femtosecond laser lift-off technique
  Microsyst. Nanoeng. 7, 32 (2021)  DOI: 10.1038/s41378-021-00257-y

• K. Stallberg, G. Lilienkamp, and W. Daum
  Single-Particle Spectroscopy of Supported Silver Clusters on Silicon: Substrate Effects on Localized Surface Plasmons
  Plasmonics 14, 1498−1496 (2019)  DOI: 10.1007/s11468-019-00944-7

• T. Franz, B. von Boehn, H. Marchetto, et al.
  Catalytic CO oxidation on Pt under near ambient pressure: A NAP-LEEM study
  Ultramicroscopy 200, 73−78 (2018)  DOI: 10.1016/j.ultramic.2019.02.024

• A. Salmatonidis, J. Hesselbach, G. Lilienkamp, et al.
  Chemical Cross-Linking of Anatase Nanoparticle Thin Films for Enhanced Mechanical Properties
  Langmuir 34, 6109−6116 (2018)  DOI: 10.1021/acs.langmuir.8b00479

• K. Stallberg, G. Lilienkamp, and W. Daum
  Plasmon–Exciton Coupling at Individual Porphyrin-Covered Silver Clusters
  J. Phys. Chem. C 121, 13833−13839 (2017)  DOI: 10.1021/acs.jpcc.7b03879

• A. Pathak, A. Bora, B. Braunschweig, et al.
  Nanocylindrical confinement imparts highest structural order in molecular self-assembly of organophosphonates on aluminum oxide
  Nanoscale 9, 6291−6295 (2017)  DOI: 10.1039/c7nr02420g

• L. Caccamo, C. Fabrega, M. Marschewski, et al.
  Charge Transfer Characteristics of n‑type In_0.1Ga_0.9N Photoanode across Semiconductor−Liquid Interface
  J. Phys. Chem. C 120, 28917−28923 (2016)  DOI: 10.1021/acs.jpcc.6b09256

• L. Caccamo, G. Cocco, G. Martin, et al.
  Insights into Interfacial Changes and Photoelectrochemical Stability of In_xGa_1−xN (0001) Photoanode Surfaces in Liquid Environments
  ACC Appl. Mater. Interfaces 8, 8232−8238 (2016)  DOI: 10.1021/acsami.5b12583

• K. Stallberg, G. Lilienkamp, and W. Daum
  Multiphoton Photoemission Electron Microscopy of Porphyrin Films on Nanostructured Ag: Molecular Resonances and Plasmonic Field Enhancement
  J. Phys. Chem. C 119, 21626−21632 (2015)  DOI: 10.1021/acs.jpcc.5b05828

• M. Rienäcker, B. Borkenhagen, G. Lilienkamp, and W. Daum
  Tailoring Si(100) substrate surfaces for GaP growth by Ga deposition: A low-energy electron microscopy study
  J. Appl. Phys. 118, 055701 (2015)  DOI: 10.1063/1.4927725

• J. Hartmann, X. Wang, H. Schumann, et al.
  Growth mechanisms of GaN microrods for 3D core–shell LEDs: The influence of silane flow
  Phys. Status Solidi A 212, 2830-2836 (2015) DOI: 10.1002/pssa.201532316

• M. W. G. Hoffmann, L. Mayrhofer, O. Casals, et al.
  A Highly Selective and Self-Powered Gas Sensor Via Organic Surface Functionalization of p-Si/n-ZnO Diodes
  Adv. Mater. 26, 8017-8022 (2014) DOI: 10.1002/adma.201403073

• L. Caccamo, J. Hartmann, C. Fabrega, et al.
  Band Engineered Epitaxial 3D GaN-InGaN Core−Shell Rod Arrays as an Advanced Photoanode for Visible-Light-Driven Water Splitting
  ACS Appl. Mater. Interfaces 6, 2235-2240 (2014) DOI: 10.1021/am4058937

• B. Borkenhagen, H. Döscher, T. Hannappel, G. Lilienkamp, and W. Daum
  Non-Destructive, Large-Scale Imaging of Anti-Phase Disorder in GaP Epilayers on Si(001) Using Low-Energy Electron Microscopy
  ECS Trans. 45, 231−239 (2012)  DOI: 10.1149/1.3700472

• H. Doescher, B. Borkenhagen, G. Lilenkamp, W. Daum, and T. Hannappel
  III-V on silicon: Observation of gallium phosphide anti-phase disorder by low-energy electron microscopy
  Surf. Sci. 605, L38−L41 (2011)  DOI: 10.1016/j.susc.2011.05.002

• B. Braunschweig, A. Mitin, W. Daum
  Pt(111) thin-layer electrodes on alpha-Al(2)O(3)(0001): Morphology and atomic structure
  Surf. Sci. 605, 1082−1089 (2011) DOI: 10.1016/j.susc.2011.03.009

• H. Döscher, G. Lilienkamp, P. Iskra, M. Kazempoor, and W. Daum
  Thermal stability of thin ZrO2 films prepared by a sol-gel process on Si(001) substrates
  Journal of Vacuum Science & Technology B 28, C5B5 (2010)

• H. Döscher, G. Lilienkamp, P. Iskra, W. Daum, G. Helsch, S. Becker, R. J. Wrobel, H. Weiss, and Y. Suchorski
  High-quality ZrO2/Si(001) thin films by a sol-gel process: Preparation and characterization
  Journal of Applied Physics 107, 094103 (2010)

• B. Braunschweig, A. Mitina and W. Daum
  One-dimensional defects in iodine adlayers on Pt(1 0 0)
  Surface Science 603, 3361-3366 (2009)

• B. Braunschweig and W. Daum
  Superstructures and Order-Disorder Transition of Sulfate Adlayers on Pt(111) in Sulfuric Acid Solution
  Langmuir DOI: 10.1021/la901399j

• G. Lilienkamp, F. Lindla, C. Senft and W. Daum
  Multi-photon photoelectron spectromicroscopy of supported polystyrene spheres
  Surface Science 602, 2658-2665 (2008)
  
  
• B. Braunschweig, S. Eissner, and W. Daum
  Molecular Structure of a Mineral/Water Interface: Effects of Surface NanoRoughness of α-Al₂O₃(0001)
  J. Phys. Chem. C 112 (6), 1751-1754 (2008)
  
  
• W. Daum
  Optical studies of Si/SiO₂ interfaces by second-harmonic generation spectroscopy of silicon interband transitions
  Appl. Phys. A 87, 451-460 (2007)

• A. Rumpel, B. Manschwetus, G. Lilienkamp, H. Schmidt, and W. Daum
  Polarity of space charge fields in second-harmonic generation spectra of Si(100)/SiO2 interfaces
  Phys. Rev. B 74, 081303(R) (2006)

• S. Bergfeld, B. Braunschweig, and W. Daum
  Nonlinear Optical Spectroscopy of Suboxides at Oxidized Si(111) Interfaces
  Phys. Rev. Lett. 93, 097402 (2004)

• S. Bergfeld and W. Daum
  Second-Harmonic Generation in GaAs: Experiment versus Theoretical Predictions
  Phys. Rev. Lett. 90, 036801-1-4 (2003)

• K. A. Friedrich, W. Daum, F. Dederichs, and W. Akemann
  The Nonlinear Optical Response of Pt(111) Electrodes in Perchloric Acid Solution: Implications for the Potential of Zero Charge
  Z. Phys. Chem. 217, 527-545 (2003)

• J. E.Mejía, B. S. Mendoza, M. Palummo, G. Onida, R. Del Sole, S. Bergfeld, and W. Daum
  Surface Second-Harmonic Generation from Si(111)(1x1)H: Theory versus Experiment
  Phys. Rev. B 66, 195329-1-5 (2002)

• F. Dederichs, A. Petukhova, and W. Daum
  Adsorption of CN at the Pt(111)/Liquid Interface by Dissociation of Acetonitrile and the Potentiality of CO Contamination: A Sum-Frequency Generation Study
  J. Phys. Chem. B 105, 5210-5216 (2001)

• F. Dederichs, K. A. Friedrich, and W. Daum
  Sum-Frequency Vibrational Spectroscopy of CO Adsorption on Pt(111) and Pt(110) Electrode Surfaces in Perchloric Acid Solution: Effects of Thin-Layer Electrolytes in Spectroelectrochemistry
  J. Phys. Chem. B 104, 6626-6632 (2000)

• G. Erley, R. Butz, and W. Daum
  Second-Harmonic Spectroscopy of Interband Excitations at the Interfaces of Strained Si(100)-Si_0.85Ge_0.15-SiO₂ Heterostructures
  Phys. Rev. B 59, 2015-2926 (1999)

• G. Erley and W. Daum
  Silicon Interband Transitions Observed at Si(100)-SiO₂ Interfaces
  Phys. Rev. B 58, R1734-1737 (1998)

• W. Daum, F. Dederichs, and J. E. Müller
  Covalent Bonding of CN to the Pt(111) Surface
  Phys. Rev. Lett. 80, 766-769 (1998); Erratum: Phys. Rev. Lett. 85, 2655 (2000)

• W. Daum
  Summenfrequenz-Schwingungsspektroskopie: Laser lassen Molekülschwingungen an Grenzflächen erkennen
  Physik in unserer Zeit, 27. Jahrgang, Nr. 6, 273 (1996)

• C. Klünker, M. Balden, S. Lehwald, and W. Daum
  CO Stretching Vibrations on Pt(111) and Pt(110) Studied by Sum-Frequency Generation
  Surface Sci. 360, 104-111 (1996)

• K. A. Friedrich, W. Daum, C. Klünker, D. Knabben, U. Stimming, and H. Ibach
  In-situ Spectroscopy of Cyanide Vibrations on Pt(111) and Pt(110) Electrode Surfaces: Potential Dependencies and the Influence of Surface Disorder
  Surface Sci. 335, 315-325 (1995)

• W. Daum, K. A. Friedrich, C. Klünker, D. Knabben, U. Stimming, and H. Ibach
  Sum-Frequency Generation at Electrochemical Interfaces: Cyanide Vibrations on Pt(111) and Pt(110)
  Appl. Phys. A 59, 553-562 (1994)

• H.-J. Krause, U. Reichel, and W. Daum Parametric Picosecond Laser System with very Broad Tunability for Nonlinear Optical Interface Spectroscopy
  Laser 93, Proceedings of the 11^th International Congress (Ed. W. Waidelich), 841-844 (Springer, Berlin, 1993)

• W. Daum, H.-J. Krause, U. Reichel, and H. Ibach
  Nonlinear Optical Spectroscopy at Silicon Interfaces
  Physica Scripta T49, 513-518 (1993)

• W. Daum, H.-J. Krause, U. Reichel, and H. Ibach
  Identification of Strained Si Layers at Si-SiO₂ Interfaces and Clean Si Surfaces by Nonlinear Optical Spectroscopy
  Phys. Rev. Lett. 71, 1234-1237 (1993)

• H.-J. Krause and W. Daum
  High-Power Source of Coherent Picosecond Light Pulses Tunable from 0.41 to 12.9
  Appl. Phys. B 56, 8-13 (1993)

• H.-J. Krause and W. Daum
  Efficient Parametric Generation of High-Power Coherent Picosecond Pulses in
  Appl. Phys. Lett. 60, 2180-2182 (1992)

• X.-D. Xiao, X. D. Zhu, W. Daum, and Y. R. Shen
  Optical Second-Harmonic Diffraction Study of Surface Diffusion: CO on Ni(110)
  Phys. Rev. B 46, 9732-9743 (1992)

• X. D. Zhu, W. Daum, X. Xiao, R. Chin, and Y. R. Shen
  Coverage Dependence of Surface Optical Second-Harmonic Generation from CO/Ni(110): Investigation with a Nonlinear Interference Technique
  Phys. Rev. B 43, 11571-11580 (1991)

• X. Xiao, X. D. Zhu, W. Daum, and Y. R. Shen
  Anisotropic Surface Diffusion of CO on Ni(110)
  Phys. Rev. Lett. 66, 2352-2355 (1991)

• J. E. Black, D. L. Mills, W. Daum, C. Stuhlmann, and H. Ibach
  The Lattice Vibrations of Nearly Incommensurate Overlayers: Ag on Ni(100) and Cu(100)
  Surface Sci. 217, 529-562 (1989)

• W. Daum
  Struktur und Gitterdynamik ultradünner epitaktischer Silber- und Eisenfilme auf Ni(100)- und Cu(100)-Substraten
  Dissertation Rheinisch-Westfälische Technische Hochschule Aachen, Report Jül-2221 of the Kernforschungsanlage Jülich GmbH, July 1988

• W. Daum, C. Stuhlmann, H. Ibach
  Displacive Phase Transition and Surface Phonon Anomalies in fcc Fe Films on Cu(100)
  Phys. Rev. Lett. 60, 2741-2744 (1988)

• W. Daum
  Surface Phonon Dispersion of Ultrathin Epitaxial Ag Films on Ni(100) and Cu(100) Substrates
  J. Electron Spectrosc. Relat. Phenom. 44, 271-280 (1987);
  Vibrations at Surfaces 1987, Proceedings of the Fifth International Conference, Hrsg. M. Bradshaw und H. Conrad (Elsevier, Amsterdam, 1987), S. 271-280

• L. Wenzel, D. Arvanitis, W. Daum, H. H. Rotermund, J. Stöhr, K. Baberschke, H. Ibach
  Structural Determination of an Adsorbate-Induced Surface Reconstruction: p4g(2 2)N versus c(2 2)O on Ni(100)
  Phys. Rev. B 36, 7689-7692 (1987)

• W. Daum, H. Ibach, J. E. Müller
  Adatom Vibrations on Si(111) Reconstructed Surfaces
  Phys. Rev. Lett. 59, 1593-1596 (1987)

• W. Daum
  On the Structure of Chemisorbed Sulphur Overlayers on Ni(100)
  Surface Sci. 182, 521-529 (1987)

• W. Daum, S. Lehwald, H. Ibach
  Surface Phonon Dispersion and Adsorbate Induced Reconstruction of Ni(100)
  Surface Sci. 178, 528-536 (1986)