Scanning Probe Microscopy Laboratory University of Luxembourg Redinger

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.

More news

15/04/2020

Our new paper on the passivation of the CuInSe2 surface via cadmium pre-electrolyte treatment is out in Physics Review Materials. Congratulations to Christian and everyone involveld. You can access it via: https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.4.045405

16/03/2020

Starting today and because of the COVID-19 outbreak, we will be working from home to preserve our group members' safety. We have a lot of data to analyse, papers to read and papers to write. All measurements are on hold and we hope to come back soon in our labs.

11/03/2020

If EMRS and MRS conferences do no get canceled, Thibaut will give a talk on how stoichiometry alters the stability of MAPI at MRS. Evandro will give a turorial on Scanning Probe Microscopy, Christian will present a poster on CIGS and Alex will give a talk on KPFM of perovskite/CIGS at EMRS.

01/03/2020

We welcome our new PhD student, Himanshu Phirke, who will work on the optical and electrical characterization of perovskite, CIGSe and photoferroelectric materials. This includes the development of a hyperspectral TRPL imaging setup and SPM measurements.

06/02/2020

Our new conference papers of the IEEE PVSC 2019 are out. You can read them here:

https://ieeexplore.ieee.org/document/8980602

https://ieeexplore.ieee.org/document/8981200

Recent Publications

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, 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

September 2019

Fermi-level pinning in methylammonium lead iodide perovskites

Thibaut Gallet, David Grabowski, Thomas Kirchartz and Alex Redinger

Nanoscale, 2019, 11, 16828-16836

More Publications

Upcoming Events

Physics Colloquium: The versatility of polyelemental perovskite compositions

Prof. Dr. Michael Saliba, Technical University of Darmstadt, Germany

11.03.2020

DETAILS

PV Seminar

Webex Online Meeting on Chalcogenide Perovskites

Prof. Dr. Jonathan Scragg, Uppsala Univeristy, Sweden

24.03.2020