SPM-Lab

The Scanning Probe Microscopy Laboratory was founded in 2017 by Alex Redinger in a framework of an FNR consolidator grant. 

The group focuses on the study of the surface of two types of thin film solar cells, namely Cu(In,Ga)Se2 (CIGSe) and hybrid organic inorganic perovskites, as well as 2D materials. We combine scanning probe microscopy techniques in ultra-high vacuum such as Scanning Tunneling Spectroscopy (STS) and Kelvin Probe Force Microscopy (KPFM) and photoluminescence imaging (PL/TRPL) to access the electrostatic and optoelectronic properties at the surface of semiconductors.

Latest News

  • 15/01/2021

We are recruiting two Postdoctoral researchers, one for the upgrade of our current infrastructure with a XPS/UPS/AES system to study perovskite, the second one to apply novel growth and characterization methods for the fabrication of perovskite solar cells. More information: https://t.co/89YexQHXo1?amp=1
  • 07/01/2021

Happy new year everyone ! The SPM Lab wishes you great successes in your future work and life. To start off the new year well, you can read our new paper entitled Co-evaporation of CH3NH3PbI3: How Growth Conditions Impact Phase Purity, Photostriction, and Intrinsic Stability, out in ACS Applied Materials and Ineterfaces. Congratulations to everyone involveld. You can access it via: https://pubs.acs.org/doi/10.1021/acsami.0c19038
Besides, our XPS setup has now been installed in our UHV SPM and can now be used. Looking forward for the UPS extension !
  • 08/12/2020

Our new paper on Electronic and compositional properties of the rear‐side of stoichiometric CuInSe2 absorbers is available in Progress in Photovoltaics. Read it here: https://onlinelibrary.wiley.com/doi/10.1002/pip.3380
  • 19/11/2020

We are recruiting one PhD student for the preparation by co-evaporation of perovskite films and solar cells as well as their characterization using scanning probe microscopy and photoluminscence analysis. Follow this link for more information and to apply: http://emea3.mrted.ly/2kwan
  • 19/10/2020

Another group member joins us in the beginning of this semester. It's Joana and she will be doing her PhD on the fabrication and characterization of tin-based perovskites. Good luck !

Recent Publications

January 2021

Co-evaporation of CH3NH3PbI3: How Growth Conditions Impact Phase Purity, Photostriction, and Intrinsic Stability

Thibaut Gallet, Ricardo G. Poeira, Evandro M. Lanzoni, Tobias Abzieher, Ulrich W. Paetzold and Alex Redinger

ACS Appl. Mater. Interfaces 2021

 

December 2020

Electronic and compositional properties of the rear‐side of stoichiometric CuInSe2 absorbers

Christian Kameni Boumenou, Amala Elizabeth, Finn Babbe, Alice Debot, Harry Mönig and Alex Redinger

Prog Photovolt Res Appl. 2020; 1– 11

April 2020

Passivation of the CuInSe2 surface via cadmium pre-electrolyte treatment

Christian Kameni Boumenou, Finn Babbe, Amala Elizabeth, Michele Melchiorre, Conrad Spindler, Jérome Guillot, Harry Mönig, Susanne Siebentritt and Alex Redinger

Phys. Rev. Materials 4 (4), 045405 

 

February 2020

Effects of Annealing and Light on Co-evaporated Methylammonium Lead Iodide Perovskites using Kelvin Probe Force Microscopy in Ultra-High Vacuum

Thibaut Gallet, Evandro M. Lanzoni and Alex Redinger

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL, USA, 2019, pp. 1477-1482.

Surface characterization of epitaxial Cu-rich CuInSe2 absorbers

Evandro M. Lanzoni, Conrad Spindler, Omar Ramirez, Michele Melchiorre, Susanne Siebentritt and Alex Redinger

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), Chicago, IL, USA, 2019, pp. 2346-2350

Upcoming Events

Energy Seminar: Flexibility for the Energy System of the Future
Prof. Ferdi Schüth, Director of the Max-Planck-Institut für Kohlenforschung
24.02.2021
17:00 - 18:30

The University of

Luxembourg

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