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German MBE-Workshop 2015

This year, the national MBE workshop is organized jointly by the Optoelectronics and the Nanophotonics & Nanomaterials groups at the University of Paderborn.

The workshop will take place on the 21st & the 22nd of September 2015.

This meeting will continue the successful series of workshops which in the past years were held in Darmstadt (2014), Dresden (2013) and Hannover (2012).

The workshop is devoted to the exchange of know-how and experience concerning all topics related to molecular beam epitaxy.

Thus, scientific contributions are as welcome as contributions addressing technical aspects or specific problems and challenges.

  • Semiconductor heterostructures:
    (Arsenides, phosphides, antimonides, nitrides)
    (Sulfides, selenides, tellurides)
    Group IV-materials
    (Si, Si/Ge, SiC, etc.)
  • Further materials:
    Magnetic materials
    High- and low-k-materials
    Organic materials
    Topological insulators
  • Nanostructures:
    Quantum dots
  • Electronic and optoelectronic devices:
    Laser diodes, light emitting diodes
    Field effect transistors
Workshop schedule


from 8:00 Booth Setup for Exhibitors
from 9:00 Reception
10:30-11:30 Lab Tour
11:30-12:30 Quick-Lunch and Industry Exhibition
12:30-12:45 Opening Remarks
12:45-14:30 Session 1: Quantum Dots
14:30-15:30 Coffee Break and Industry Exhibition
15:30-16:45 Session 2: Ge, Graphene and Oxides
16:45-17:15 Coffee-Break and Industry Exhibition
17:15-18:15 Open Discussion: Growth Rate Determination in MBE
18:30-19:00 Bus-Transfer to the Schützenhof
19:00 Workshop dinner at the Schützenhof


9:00 -10:30 Session 3: Nanowires and Nitrides
10:30-11:30 Coffee-Break and Industry Exhibition
11:30-13:00 Session 4: Heterostructures
13:00-13:15 Closing Remarks
13:15-14:00 Lunch-Break
14:00-16:00 Lab Tour




Scientific Program

[Complete scientific program as pdf for download]

Monday, 21st Sept. 2015

from 8:00 Booth-Setup for the Exhibitors
from 9:00 Registration
10:30-11:30 Lab-Tour
11:30-12:30 Quick-Lunch and Industry Exhibition
12:30-12:45 Opening Remarks
12:45-14:30 Session 1: Quantum Dots
12:45 Ch. Heyn, A. Küster, M. Zocher, A. Ungeheuer, H. Runge, and W. Hansen: Deep droplet-etched nanoholes for complex nanostructures
13:00 Martin Elborg, Takeshi Noda, Takaaki Mano, Yoshiki Sakuma: Droplet Epitaxy GaAs/AlGaAs Quantum Dot Embedded Solar Cells with Enhanced Sub-Band Gap Light Absorption
13:15 S. Banyoudeh, A. Abdollahinia, V. Sichkovskyi, J.P. Reithmaier: Growth and characterisation of 1.55  m  InAs QD lasers
13:30 Marc Sebastian Wolf and Johann Peter Reithmaier: Direct growth of high-density InAs/GaAs core/shell quantum dots on silicon towards a new light emitting silicon based material platform
13:45 N. Sharma and D. Reuter: Growth of Low Density InAs Quantum Dot Molecules
14:00 J. H. Prechtel, A. V. Kuhlmann, J. Houel, Arne Ludwig, S. R. Valentin, Andreas D. Wieck, and Richard J. Warburton: The hole spin qubit: decoupling from the nuclear spins
14:15 Robert Keil, Fei Ding and Oliver G. Schmidt: Resonance fluorescence from single GaAs quantum dots grown by molecular beam epitaxy at Rubidium D2 transition line
14:30-15:30 Coffee-Break and Industry Exhibition
15:30-16:45 Session 2: Ge, Graphene and Oxides
15:30 Andreas Grimm, Lars C. Kähler, Tobias F. Wietler: Surface preparation of virtual Germanium substrates on Si(001)
15:45 J.M. Wofford, F. Speck, M. Ramsteiner, T. Seyller, J.M.J. Lopes, H. Riechert: Nickel enhanced graphene growth directly on dielectric substrates by MBE
16:00 M. Moellers, C. Margenfeld, D. Schwendt, T.F. Wietler, H.J. Osten: Non-Cubic Gd2O3 on Silicon (111) Substrates
16:15 Manuel H.W. Bader and Cedrik Meier: ZnO-buffer and MgO-buffer for growth of ZnO on Si(111) and Al2O3(0001) substrates
16: 30 S. U. Sharath, S. Vogel, E. Hildebrandt, J. Kurian, P. Komissinskiy,  P. Calka, G. Niu, T. Schroeder, and L. Alff: Effect of oxygen engineering in HfO2 by MBE for RRAM applications
16:45-17:15 Coffee-Break and Industry Exhibition
17:15-18:15 Open Discussion: Growth Rate Determination in MBE
18:30-19:00 Bus-Transfer to the Schützenhof
19:00 Workshop Dinner at the Schützenhof


Tuesday, 22nd Sept. 2015

9:00 -10:30 Session 3: Nanowires and Nitrides
9:00 S. Scholz, R. Schott, A. Ludwig, and A. D. Wieck: Site-Controlled MBE Growth of III/V Semiconductor Nanowires Induced by Focused Ion Beam
9:15 Mihail Ion Lepsa, Torsten Rieger and Detlev Grützmacher: Growth and structural characterization of InAs/AlxGa1-xAs core-shell nanowires
9:30 P. Hille, J. Müßener, P. Becker, M. de la Mata, C. Magen , J. Arbiol, M. Beeler, C. B. Lim, E. Monroy, J. Teubert, J. Schörmann, and M. Eickhoff: Screening of internal electric fields by Germanium doping of AlN/GaN nanowire superlattices
9:45 S. Fernández-Garrido, J. K. Zettler, A. Laha, E. Luna, U. Jahn, P. Corfdir, A. Trampert, L. Geelhaar, and O. Brandt: Monitoring the growth and decomposition of GaN nanowires by quadrupole mass spectrometry and optical reflectance
10:00 C.I. Oppo, A. Urban, R. Zamani, J. Malindretos, and A. Rizzi: Selective area growth of GaN nanocolumns
10:15 M. Rüsing, T. Wecker, G. Berth, D. J. As, and A. Zrenner: Determination of dislocation densities in cubic Gallium nitride by HRXRD and Raman spectroscopy
10:30-11:30 Coffee-Break and Industry Exhibition
11:30-13:00 Session 4: Heterostructures
11:30 Gerhard Boehm, Wolfgang Bennarndt, Markus-Christian Amann: Growth and Characterization of Ga(In)AsBi on GaAs and InP
11:45 E. P. Rugeramigabo, L. Bockhorn and R. J. Haug: Tuning disorder of GaAs/AlGaAs quantum wells with intentional doping and its effect on magnetoresistance.
12:00 M. Kwiatek, N. Hekmat, J. M. Chauveau, A. Ludwig, N. Jukam, A.D. Wieck: Challenges and considerations on growing advanced heterostructures with a self-built MBE-system
12:15 A. Finke, M. Ruth, S. Scholz, A. Ludwig, A.D. Wieck, D. Reuter, and A. Pawlis: Strain engineering with CdSe/ZnSe/(Zn,Mg)Se quantum wells
12:30 M. Ruth, A. Finke, G. Schmidt, D. Reuter, S. Scholz, A. Ludwig, A.D. Wieck and A. Pawlis: Microdisks and Waveguides of CdSe/(Zn,Mg)Se hetero-structures
12:45 S. J. MacLeod, A.M. See, A. R. Hamilton, I. Farrer, D. A. Ritchie, J. Ritzmann, A. Ludwig, and A.D. Wieck: Hybrid architecture for shallow accumulation mode AlGaAs/ GaAs heterostructures with epitaxial gates
13:00-13:15 Closing Remarks
13:15-14:00 Lunch-Break
14:00-16:00 Lab-Tour
Workshop Language

Speakers are encouraged to give their presentations in English. In case German is preferred, the presenter is asked to prepare the slides in English.


The workshop will be held at the University of Paderborn:

University of Paderborn
Building „O“
Warburger Str. 100
D-33098 Paderborn

Please see the local area map for details.


How to get there

By car:

Use the Autobahn A33, exit Paderborn-Zentrum.

By public transport:

The central station „Paderborn Hbf“ is served by IC-trains and DB-regio lines that connect Paderborn with Hamm and Kassel Hbf, where all major ICE-connections can be made. From Paderborn Hbf, use Line 4 vs. „Dahl“, Line 9 to „Kaukenberg“, or Line 68 to „Schöne Aussicht“. All these lines stop at „Uni/Südring“ or „Uni/Schöne Aussicht“, from where the workshop venue can be reached. A local area map is to be found on the workshop homepage.

By air:

The airport Paderborn /Lippstadt is located in 20km distance. From the airport the central station can be reached by the bus lines 400 or 460 towards „Paderborn Hbf“.


B&B Hotel

Close to the main station.
Price: (Single room + breakfast) starting at 56,50€

Bahnhofstr. 31 | 33102 Paderborn
Tel.: 05251/69300 | paderborn(at)hotelbb(dot)com 

Ibis City Hotel

Close to the city center.
Price: (Single room + breakfast) starting at 64,57€

Paderwall 1-5 | 33102 Paderborn
Tel.: 05251/1245 | H0718(at)accor(dot)com

Hotel Zur Mühle

In the city center.
Price: (Single room + breakfast) starting at 80,00€.

Mühlenstr. 2 | 33098 Paderborn
Tel.: 05251/10750 | info(at)hotelzurmuehle(dot)de

Hotel Aspethera

In the city center.
Price: (Single room + breakfast) starting at 84,00€.

Am Busdorf 7 | 33098 Paderborn
Tel. 05251/2888-100 | info(at)hotel-aspethera(dot)de

Galerie Hotel Abdinghof

Near the "Paderquellgebiet".
Price: (Single room + breakfast) starting at 75,00€

Bachstr. 1 | 33098 Paderborn
Tel. 05251/12240 | info(at)galerie-hotel(dot)de

Welcome Hotel

Close to the "Paderwiesen" and the "Schützenhof" (location of conference dinner).
Price: (Single room + breakfast) starting at 93,00€

Fürstenweg 13 | 33102 Paderborn
Tel. 05251/28800 | info.pad(at)welcome-hotels(dot)com

Arosa/Best Western Hotel

Near the city center.
Price: (Single room + breakfast) starting at 95,00€

Westernmauer 38 | 33102 Paderborn
Tel. 05251/1280 | info(at)arosa.bestwestern(dot)de

Further accomodation options

More hotels and further accomodation options can be found under

Industry Exhibition

Apart from the scientific contributions there will be an industry exhibition, which will give companies the opportunity to present their products and services. The exhibition area is located next to the hall for oral presentations.

For further details please contact Prof. Dr. Dirk Reuter.

Social Event

On the evening of the 21st, a workshop banquet will be held in the Andreas-Ferrari Hall at the “Schützenhof” to foster informal information exchange between the participants.

A bus transfer from the University Campus to the Schützenhof will be organized after the Open Discussion at 18:30h. No bus transfer back to the university will be offered since the “Schützenhof” is located in walking distance to almost all hotels.

Participants using their own car find the Schützenhof by entering the following address into the navigation system:  Wilhelm-Kaufmann-Allee 1

Organizing Committee

Organizing Committee


  • Prof. Dr. D. J. As
  • Prof. Dr. C. Meier
  • Prof. Dr. D. Reuter

Please use the contact E-mail:



Please contact Prof. Dr. Dirk Reuter for sponsoring opportunities.


Please register using this registration form.

Conference fee

Early-bird fee80€ (until 21st of August)
Regular fee100€

Please wire-transfer the conference fee to the following account:  

Account holderUniversitaet Paderborn
Bank nameVolksbank Paderborn-Hoexter-Detmold
3030207602 + Your Name





Contact information:


Prof. Dr. Dirk Reuter

Organized by
Supported by

Die Universität der Informationsgesellschaft