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CeNS Center for NanoScience LMU Ludwig-Maximilians-Universität München
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Dr. rer. nat. Klaus Becker

Curriculum Vitae

since 2008

Research Manager at Heraeus Quarzglas GmbH & Co. KG

2004 - 2008

Doctoral thesis in Physics at the LMU München

Supervisor: Prof. Dr. Jochen Feldmann

1998 - 2004

Diploma in Physics at the Technical University Darmstadt

Topic: spatial emission dynamics of semiconductor lasers

Dissertation

Kontrolle des Energietransfers in hybriden und pi-konjugierten Systemen
Dissertation, LMU (2008) Thesis...

Publications

K. Becker, A. L. Rogach, J. Feldmann, D. V. Talapin, J. M. Lupton:
Energetic disorder limits energy transfer in semiconductor nanocrystal-DNA-dye conjugates
Appl. Phys. Lett., 95, 14, 143101 (2009).

C. Mauser, T. Limmer, E. Da Como, K. Becker, A. L. Rogach, J. Feldmann, D. V. Talapin:
Anisotropic optical emission of single CdSe/CdS tetrapod heterostructures: Evidence for a wavefunction symmetry breaking
Phys. Rev. B 77, 153303 (2008).

K. Becker, M. Fritzsche, S. Höger, J. M. Lupton:
Phenylene-Ethynylene Macrocycles as Model Systems of Interchromophoric Interactions in Pi-Conjugated Macromolecules
J. Phys. Chem. B., 112, 4849 (2008).

E. Da Como, K. Becker, J. M. Lupton:
Single Molecule Spectroscopy of Polyfluorenes
in "Advances in polymer science", Edited by U. Scherf and D. Neher, Springer Berlin / Heidelberg 2008, ISSN 0065-3195.

E. Da Como, K. Becker, J. Feldmann, J. M. Lupton:
How strain controls electronic linewidth in single beta-phase polyfluorene nanowires
Nano Lett. 7 (10): 2993-2998  (2007).

K. Becker, E. Da Como, J. Feldmann, F. Scheliga, E. Thorn Csányi, J. M. Lupton:
How chromophore shape controls photophysical function in phenylene-vinylenes, submitted.

E. Da Como, K. Becker, J. Feldmann, J. M. Lupton:
Long-range intrachain order limits electronic dephasing in polymeric nanowires, submitted.

D. Soujon, K. Becker, A. L. Rogach, J. Feldmann, H. Weller, D. V. Talapin, J. M. Lupton:
Time resolved Förster energy transfer from individual semiconductor nanoantennae to single dye molecules
J. Phys. Chem. C (Letter), 111, 11511 (2007).

K. Becker, P. G. Lagoudakis, G. Gaefke, S. Höger and J. M. Lupton:
Exciton accumulation in pi-conjugated wires encapsulated by light-harvesting macrocycles
Angew. Chem. Int. Ed. 46, 3450-3455 (2007).

M. J. Walter, J. M. Lupton, K. Becker, J.Feldmann, G. Gaefke, S. Höger:
Simultaneous Raman and fluorescence spectroscopy of single conjugated polymer chains
Phys. Rev. Lett. 2007, 98, 137401 (2007).

K. Becker, J. M. Lupton, and J. Feldmann:
Photosynthese in neuem Licht, Physik in unserer Zeit, 38, 7-8 (2007).

K. Becker, J. M. Lupton, J. Müller, A. L. Rogach, D. V. Talapin, H. Weller, and J. Feldmann:
Electrical control of Förster energy transfer
Nature Mat. 5, 777 (2006).

K. Becker, J. M. Lupton, J. Feldmann, S. Setayesh, A. C. Grimsdale, K. Müllen:
Efficient Intramolecular Energy Transfer in Single Endcapped Conjugated, Polymer Molecules in the Absence of Appreciable Spectral Overlap
J. Am. Chem. Soc. (Comm.), 128, 680 (2006).

K. Becker and J. M. Lupton:
Efficient Light Harvesting in Dye-endcapped Conjugated Polymers Probed by Single Molecule Spectroscopy
J. Am. Chem. Soc. 128, 6468-6479 (2006).

K. Becker, J. M. Lupton, J. Feldmann, B. S. Nehls, F. Galbrecht, D. Q. Gao, and U. Scherf:
On-chain fluorenone defect emission from single polyfluorene molecules in the Absence of Intermolecular Interactions
Adv. Funct. Mater. 16, 364 (2006).

T. Gensty, K. Becker, I. Fischer, W. Elsässer, C. Degen, P. Debernadi, G. P. Bava:
Wave-Chaos in Real-World Surface-Emitting-Vertical-Cavity-Lasers
Phys. Rev. Lett. 94, 233901 (2005).

K. Becker and J. M. Lupton:
Dual species emission from single polyfluorene molecules: signatures of stress-induced planarization of single polymer chains
J. Am. Chem. Soc. (Comm.) 127, 7306 (2005).

K. Becker, I. Fischer, W. Elsässer:
Spatio-Temporal Emission Dynamics of VCSELs: Modal Competition in the Turn-on Behavior Semiconductor Lasers and Laser Dynamics, D. Lenstra, G. Morthier, T. Erneux, M. Pessa (eds.)
Proceedings of SPIE, Vol 5452, pp. 452 (2004).