% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{Barp:632223,
      author       = {Barp, Jackson L. and Patjens, Svenja and Falkenberg, Gero
                      and Fevola, Giovanni and Garrevoet, Jan and Stückelberger,
                      Michael},
      title        = {{M}ulti-{M}odal {S}canning {L}aser {M}icroscope for
                      {D}iffraction-{L}imited {S}olar-{C}ell {I}maging},
      reportid     = {PUBDB-2025-02151},
      year         = {2024},
      abstract     = {The advancement of new technologies such as solar cells
                      relies on the development of measurement techniques that
                      allow us to characterize and understand fundamental
                      parameters and processes within the devices of interest.
                      Laboratory laser-based microscopy has proven to be an easy
                      and successful way to characterize many solar cell
                      parameters. However, due to the decreasing size of the
                      structures in next-generation solar cells, synchrotron-based
                      X-ray microscopy is becoming increasingly important to
                      unveil solar cell limitations in the sub-micrometer scale.
                      We have developed a multi-modal scanning laser microscope,
                      which allows us to access fundamental optical and electrical
                      parameters of a wide range of materials, via temporally
                      resolved and spectrally resolved photoluminescence (TR-PL
                      and SR-PL), laser beam induced current or voltage
                      (LBIC/LBIV), and impedance spectroscopy (IS). Moreover, the
                      microscope is built in analogy to a synchrotron beamline,
                      serving as a test bed for the development of sophisticated
                      synchrotron-based techniques. In this talk we give technical
                      details about the developed setup, the different scanning
                      modalities, the controlling protocols and the data analysis
                      algorithms. We showcase the variability and compatibility of
                      the microscope with different solar cell architectures,
                      types, and sizes by means of the optical charge-carrier
                      lifetime and PL intensity (via TR-PL), the bandgap
                      wavelength (via SR-PL), the electrical performance (via
                      laser reflection and LBIC) and the electrical charge-carrier
                      lifetime (via time-resolved LBIV and IS). Furthermore, we
                      elaborate on how the knowledge gained can be directly
                      translated to synchrotron-based experiments, saving precious
                      and expensive beamtime.},
      month         = {Jun},
      date          = {2024-06-09},
      organization  = {2024 IEEE 52nd Photovoltaic Specialist
                       Conference, Seattle (USA), 9 Jun 2024 -
                       14 Jun 2024},
      cin          = {FS-PETRA},
      cid          = {I:(DE-H253)FS-PETRA-20140814},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632)},
      pid          = {G:(DE-HGF)POF4-632},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)1},
      doi          = {10.1109/PVSC57443.2024.10749246},
      url          = {https://bib-pubdb1.desy.de/record/632223},
}