Contact

Prof. Dr. Gunther Wittstock
Group Leader

Group members

+49 (0) 441 798 3970

+49 (0) 441 798 3979

Mailing Address

University of Oldenburg
School of Mathematics
   and Science
Institute of Chemistry
Wittstock Group
D-26111 Oldenburg
Germany

Visitors

University of Oldenburg
Campus Wechloy
Carl-von-Ossietzky Street 9-11
Building W3, 1st floor
D-26129 Oldenburg
Germany

How to find us

Research Tools

Electrochemistry and Condensed Matter Interfaces

We develop and test different tools for research, especially for scanning electrochemcial microscopy (SECM), a method that we intensively use and for which we develop new procedures and applications.

SECM Hardware

Below is a list of our key publikations, in which important hardware developments are documented for scanning electrochemical microscopy (SECM).

SECMx

SECMx is a controll programm for SECM instruments. It can operate with different hardware systems and allows to flexibly adapt setups to specific tasks while keeping the same software. The software can be easily expanded by adding new instrument drivers or programming new experiments.

The demo version allows you to see the experiments and the organisation. It can also "perform" experiments by simulating the behaviour of connected virtual devices. For a full version contact Gunther Wittstock

Download manual for connecting hardware (PDF, 5 MB)

Download manual for procedure (PDF, 2 MB)

Download demo version

Compatibility

The software works with the following hardware:

Positioning system:
PhysikInstrumente, Märzhäuser, Mechonics, SPI, SmarAct and Owis

Tilt table:
Zaber

Potentiostats:
Ivium, Ivium with WE32 multiplexer, Ivium plus, npi with various current and voltage ranges, CHI, Gamry as monopotentiostat and bipotentiostat, PalmSense, Jaissle, generic analog devices, home-built analog potentiostat 

AD cards:
Plug In DAS PCI 1602/16, Plug In CIO DAS 1602_16, Plug In DAS6036, USB2627

DA cards:
Plug In DDA4 and DDA8, Plug In CIO DAC 02_16

FPGA card
NI FPGA card, limited functions

Regulated light source:
Zahner, NKT super continuum source

Droplet cell
Sensolytics

New drivers are added as the need appears.

MIRA

MIRA stands for „microscopy image rapid analysis”. It is a software  evaluation and documentation of SECM measurements and also handles other electrochemical data from various instrument manufacturere and home-built instruments according to a uniform standard.

It contains productivity tools that were developed for everyday laboratory routines.

Download

Demo version, 64 bit system, 126 MB
Demo version, 32 bit system, 126 MB
Software requirements: Windows 7, Windows 10, running in 24 bit color depth or 256 bit color depth. It has full functionallity but can only load the example data files that are supplied with the demo distribution. For a full version contact Gunther Wittstock.

Manual mira, PDF, 6 MB

Manual batch processing, PDF, 0.3 MB


Highlights

  • Various 3D data representations
  • Profiles in arbitrary directions
  • Curve fitting for SECM
  • Tool for analysis of combinatorial libraries
  • Treatment of 4D data sets
  • Batch processing of data files and lab book documentation tool.

Dipping Robot

The open access publication listed below documents the developemnt of a very affordable, flexibly programmable dipping robit for repetitive imersion/emersion protocols, for instance for layer-by-layer deposition of functional materials. The instrument is maded by reconfiguring and reprogramming a 3D printer. It makes use of 3D-printed hardware components and Ardunino control electronics. All programs and construction documentation are available for download in the Supporting Information of the publication.

L. Harms, N. Roth, G. Wittstock; A New Programmable Dipping Robot.
Electrochem. Sci. Adv. 2022, e2100177. Abstract & Link (Open Access)

(Changed: 26 Nov 2022)