Doctoral Student Position Variable Focus Lens Based on Electrowetting on Dielectric

TU Wien is located in the heart of Europe, in a cosmopolitan city of great cultural
diversity. TU Wien combines basic and applied research and research-oriented
teaching at the highest level.
The Institute of Sensor and Actuator Systems ISAS is seeking a doctoral student
for 36 months (starting June 1, 2019) for a joint research project funded by the FFG
(national funding agency).

Activities and responsibilities

The Project
The challenge of the individual and rapid adjustment of light fields for residential
lighting shall be met by single liquid lens systems on LEDs. A laboratory system
based on ElectroWetting-On-Dielectric (EWOD) will be developed for the large
apertures needed e.g. for high-power LEDs, to allow for collimation, focusing and
astigmatism-adjustment without mechanical components. The necessary forces
to tune the shape of the liquid lens result mainly from carefully designed
electrode geometries and surface-properties. The system will be designed by
combined analytical/numerical/experimental investigations, thus taking into
account any impact of electrical field, surface properties, fluidic properties, and
temperature on the shape and stability of the liquid lens. The impact of
superhydrophobic surfaces, produced by laser structuring and chemical
functionalisation, will be investigated and implemented in the device fabrication
process. The final laboratory system will be subjected to various stress tests. For
more information about this project please contact Prof. Ulrich Schmid

Qualification profile

Your Profile
We are looking for a PhD student highly motivated to cooperate in a
multidisciplinary research group, fulfilling the following requirements:
  •  MSc degree or comparable degree in physics, material science, mechanical  or electrical engineering or in a related subject
  •  high motivation to investigate multi-physical problems in theory andexperiment
  •  experience in scientific programming e.g. Matlab/Octave and finite element   modelling
  •  basic experience and creativity in experimental electronic laboratory work
  •  Solid written and oral communication skills in German and/or English


Our Offer
The successful candidate will work in the Microsystems Technology MST group
of Prof. Ulrich Schmid at the Institute of Sensor and Actuator Systems ISAS
located in the center of Vienna. The PhD student will be part of a research group
consisting of two additional project partners with excellent infrastructure. More
information about the group and the institute can be found at

Send application to

Your Application
We invite highly motivated and qualified students with a strong interest in the
described subject to send their application in a single pdf file containing
• A letter motivating the application (cover letter)
• Curriculum vitae
• Grade transcripts and BSc/MSc diploma
by email to Mrs. Martina Bittner (
Application deadline is April 23, 2019.

Salary of the position are according to collective labor agreement for employees
at universities, salary group B1, based on 31 hours per week, a gross salary of
currently EUR 31.080 per year.

Candidates may apply prior to obtaining their master's degree, but cannot begin
before having received it.

Candidates are not eligible for refund of expenses for travelling and lodging
related to the application process.
TU Wien intends to increase the number of women on its faculty and therefore
specifically invites applications by women. Among equally qualified applicants women will receive preferential consideration.

Depending on individual qualification and experience € 30.000 to 39.999 gross per year will be paid for this position.
While applying for the job please refer to jobvector

About TU Wien

TU Wien is located in the heart of Europe, in a cosmopolitan city of great cultural diversity. Our identity as a research university means that we build our reputation through our research. TU Wien combines basic and applied research and research-oriented teaching at the highest level.

More about TU Wien