Speaker
David Matzdorff
(Helmholtz-Zentrum Berlin (HZB))
Description
Materials like Cu$_{2}$MnGeS$_{4}$ and Cu$_{2}$MnSnS$_{4}$ are promising candidates as absorber material in tandem solar cells. They show a wide bandgap in the range of 1.6-1.72 eV, while being made of non-toxic and earth abundant elements. Results of the chemical composition study in combination with structural characterization (XRD and neutron diffraction) as well as the optical bandgap evaluation from diffuse reflectance of the Cu$_{2}$Mn(Ge,Sn)S$_{4}$ mixed crystals will be presented.
Primary author
David Matzdorff
(Helmholtz-Zentrum Berlin (HZB))
Co-authors
Galina Gurieva
(Helmholtz-Zentrum Berlin)
Dr
Denis Sheptyakov
(Paul Scherrer Institute)
Susan Schorr
(Helmholtz-Zentrum Berlin für Materialien und Energie)
