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Prof. Dr. rer. nat. Johannes Barth

Photo von Prof. Dr. rer. nat. Johannes Barth.
Phone
+49 89 289-12609
Room
PH II: 211
E-Mail
jvb@tum.de
dekan@ph.tum.de (Dean of the Physics Department)
Links
Homepage
Page in TUMonline
Group
Physics of Surfaces and Interfaces
Job Titles
  • Dean of the Physics Department
  • Department Council Member: Dean
  • Professorship on Physics of Surfaces and Interfaces
Additional Info
********************************************************************************************************************** °°°PLEASE ADDRESS EMAIL & REQUESTS CONCERNING DEPARTMENTAL ISSUES TO°°° ---------------------------------------------> dekan@ph.tum.de <--------------------------------------------- **********************************************************************************************************************
Consultation Hour
Mo nachm. / Mi vorm

Courses and Dates

Title and Module Assignment
ArtSWSLecturer(s)Dates
Molecular Nano-Science (Colloquium for Ph.D. Students)
Assigned to modules:
KO 2 Barth, J. Fri, 14:00–16:00, PH II 227
FOPRA Experiment 35: Electron Spectroscopy at Surfaces
current information
Assigned to modules:
PR 1 Barth, J.
Assisstants: Allegretti, F.Piquero-Zulaica, I.
FOPRA Experiment 83: Scanning Tunnelling Microscopy & Molecular Imaging
current information
Assigned to modules:
PR 1 Barth, J.
Assisstants: Meier, D.Papageorgiou, A.Ran, W.
FOPRA Experiment 89: Basic Techniques of Surface Physics
Assigned to modules:
PR 1 Barth, J.
Assisstants: Allegretti, F.Küchle, J.
Revision Course to Seminar to Fundamentals of Surface and Nanoscale Science
Assigned to modules:
RE 2
Responsible/Coordination: Barth, J.
Seminar on scientific methods in surface physics
Assigned to modules:
SE 2 Barth, J. Thu, 12:00–14:00, PH II 227
Seminar on current topics in surface physics
Assigned to modules:
SE 2 Barth, J. Thu, 10:00–12:00, PH II 227
Presentations within TUM Faculty Recruitment and Career System
This course is not assigned to a module.
KO 0.1
Responsible/Coordination: Barth, J.
singular or moved dates

Offered Bachelor’s or Master’s Theses Topics

Foldamers on solid surfaces: tethering, folding and assembly

Nanoscience can arrange minute molecular entities into nanometric patterns in an orderly manner using self-assembly protocols. For practical applications, it is desirable to support such self-assembled structures on surfaces. With this project we wish to expand the capabilities of self-assembled molecular layers by mimicking the ability of biomolecules, such as proteins, to fold into well-defined conformations.

Therefore, we will investigate the on-surface self-assembly of a series of foldamers: synthetic molecular strands that fold into helices. For controlling the surface deposition in the solid/vacuum interface, we will employ a home-developed electrospray controlled ion beam deposition (ES-CIBD). Scanning tunnelling microscopy (STM) under ultra-high vacuum conditions will be used as a convenient tool to provide real-space information about the molecular adsorption, conformation and self-assembly. The conformation and assembly will be controlled by thermal processing and choice of solid support.

suitable as
  • Master’s Thesis Condensed Matter Physics
  • Master’s Thesis Applied and Engineering Physics
Supervisor: Johannes Barth
Tethering of molecular sensitizers on solar cell surfaces

Titanium dioxide is a semiconductor widely used in solar cells. To harness the energy of the solar spectrum, it is sensitised with dyes which are bound by single or dual tethers. Most commonly these anchors are carboxylate groups, however catecholates and hydroxamates are also reported as convenient and robust alternatives.

With this project we aim to provide a comparative study on the microscopic events that lead the different tethers to guide the adsorption of molecular dyes on model titania surfaces. Scanning tunnelling microscopy under ultra-high vacuum conditions and at a temperature range of 250 to 350 K will be used as a convenient tool to provide real-space information about the adsorption and diffusion of single and dual anchors on single crystal surfaces of titanium dioxide.

suitable as
  • Master’s Thesis Condensed Matter Physics
  • Master’s Thesis Applied and Engineering Physics
Supervisor: Johannes Barth
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