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The position is for two years starting as soon as possible after the job offer is made.

Background: The research at the Division of Solid State Electronics is focused in two main areas: Electronics for Sustainable Energy and Electronics for Smart Life. Specific research fields include solar cells, flexible electronics, ion-sensors, RF-devices and thin film technologies. The ion-sensor research aims at exploring entirely new silicon nanowire-based device concepts as an electronic sensor for detecting charged particles including DNA/RNA strands at extreme concentrations. The research will be conducted in close collaboration with scientists and engineers in physics, surface chemistry and biochemistry.

Project description: We are now looking for a suitable candidate to strengthen our research on the interface interaction between solid surface and liquid in a charge sensitive transistor intended for specific ion sensing in electrolytes. In order to achieve sensitivity and signal-to-noise performance at levels presently unachieved, we are currently developing an entirely new type of ion sensing device called a NanoWire-based Ion-Gated Bipolar Amplifier (NW-IGBA). However, the interface between the sensing layer and the electrolyte, the sensing layer itself, as well as the stability of the electrolyte-insulator-semiconductor system are all critical parameters. The postdoctoral fellow will be hired for developing: 1) a physical / phenomenological model in order to further our understanding of the dispersion properties of the electrical double layer at this interface; 2) new specific ion-sensing surface layers with the guidance of this model; 3) characterization tools/methods. Expected results from the project are that the model will enable ion-selective sensing with even better sensitivity, signal-to-noise performance and stability.

Qualifications required: To qualify for an employment as a post-doctor, the applicants must hold a PhD degree or a foreign qualification deemed equivalent to a PhD. To be eligible for a position as postdoctoral researcher the applicant’s PhD degree must have been obtained no more than three years prior to the application date; however, periods of sick leave or parental leave, for example, are deductible from the three-year period.

PhD in Materials research, Physics, or Engineering and experience with ion sensor fabrication and characterization are expected. Previous experience in low-frequency noise measurements is advantageous. Good oral and written proficiency in English is required.

The application should include:

• Cover letter with a brief description of previous research, research interests, and qualifications.
• CV and list of publications.
• Copy of degree diploma, other official academic transcripts.
• Names of two reference persons, along with their contact details.

Uppsala University is striving to achieve a more equal gender balance and female candidates are encouraged to apply.

For further information about the position, please contact associate senior lecturer Zhen Zhang (e-mail zhen.zhang<στο>angstrom.uu.se). Information about the division of Solid State Electronics can be found at www.sse.uu.se.

You are welcome to submit your application no later than December 31st, 2014, UFV‑PA 2014/2167. Use the link below to access the application form.

Postdoctoral position – Electronic sensor & electrolyte interface study for ultimate ion-sensing

In case of disagreement between the English and the Swedish version of this announcement, the English version takes precedence.

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