You are here: Home PhD students Florian Büker
Document Actions

Florian Büker


Florian Büker

Albert-Ludwigs Universität Freiburg
Institute for Microsystems Engineering
Chair for Process Technologies
Georges-Köhler-Alee 103
79110 Freiburg

Tel.: +49 (0)761 203 7247
Fax: +49 (0)761 203 7352
E-mail: florian.bueker@imtek.uni-freiburg.de
Web: www.imtek.de/prozesst


Curriculum Vitae

Born in Germany, Detmold 1983

2004-2010: Germany, Albert-Ludwigs-University, Microsystems Engineering


Practical and scientific experience

Nov. 2005 – Okt. 2008 Scientific assistant at Fraunhofer Institute for Solar Energy. Work on laser-based inscription of Silicon wafers and PECVD-processing.
Nov. 2008 – Apr. 2009 Trainee at Sick AG. Work on optically based sensors.
Nov. 2005 – Okt. 2008 Diploma Thesis at Fraunhofer Institute for Solar Energysystems. Investigation on a novel silicon based solar cell.
Jul. 2010 – Jun. 2011 Scientific employee at the Department of Microsystems Engineering. Investigation on novel photo-rechargeable battery-concept.


Voluntary and social activities

Double-bass playing since 1993 in various orchestras. From 2006 until 2008: accomplishing management tasks in the “Academic Orchestra of Freiburg”.

Flying since 1998. Since 2007 accomplishing management tasks in the “Academic Society for Aviation of Freiburg”.


Hertkorn, D.; Bretthauer, C.; Büker F.; Herr, B.; Müller, C.; Reinecke, H.; Brennstoffzellen-Akkumulator mit integrierter fotoaktiver Schicht zur solaren Beladung. In: Mikrosystemtechnikkongress 2011. Institut für Mikrosystemtechnik-IMTEK, Lehrstuhl für Prozesstechnologie, Freiburg 2011.

Hertkorn, D.; Bretthauer, C.; Büker F.; Bretthauer, C.; Herr, B.; Müller, C.; Reinecke, H.; Müller, M.; Paul, F.; Haußelt, J.; Photovoltaically rechargeable fuel cell accumulator for energy self-sufficient microsystems. In: IEEE 978-1-4577-0156-6/11. Institut für Mikrosystemtechnik-IMTEK, Lehrstuhl für Prozesstechnologie, Freiburg 2011.

Abstract of thesis

A novel photo-rechargeable battery-concept

Micro Energy Harvesting (MEH) is a sustainable concept for power generation in low power systems. The idea of MEH is to harvest energy from the ambience, such as light, heat or vibrations, then to convert it into electrical energy and finally to store it. By this it becomes possible to make small scale renewable systems more energy-efficient and autonomous.
The novel battery-concept, which is to be investigated, consists of a photosensitive anode and a counter-electrode, which uses air as the oxidant when being unloaded. That’s why it is possible to charge the battery by light-irradiation. In this context a special feature is the physical working principal, which avoids overcharging of the battery. As a consequence of this there is no additional monitoring and regulation of the charging-process required.
The counter electrode of this cell-concept uses ambient air as the oxidant, while the cell is unloading. This affects a high energy-density of the cell, because the oxidant does not have to be carried not “on board” of the cell.
The manufacturing-process of this cell-type is quite simple. Along the whole process-chain, no cleanroom processes is required. Beside of that, the used materials are cheap and do not harm the environment.

Personal tools