activity
20212023
most citedNear surface defects: Cause of deficit between internal and external open-circuit voltage in solar cells

35 citations · 89 across the 6 of their papers we have counts for

collaborators

6 papers

physics.app-ph2023★ 8 cited

CuIn(Se,Te)2 absorbers with bandgaps < 1 eV for bottom cells in tandem applications

Thomas Paul Weiss, Mohit Sood, Aline Vanderhaegen +1

Thin-film solar cells reach high efficiencies and have a low carbon footprint in production. Tandem solar cells have the potential to significantly increase the efficiency of this…

cond-mat.mtrl-sci2022★ 5 cited

How much gallium do we need for a p-type Cu(In,Ga)Se2?

Omar Ramírez, Evandro Martin Lanzoni, Ricardo G. Poeira +4

Doping in the chalcopyrite Cu(In,Ga)Se2 is determined by intrinsic point defects. In the ternary CuInSe2, both N-type and P-type conductivity can be obtained depending on the growt…

cond-mat.mtrl-sci2022

Metastable defects decrease the fill factor of solar cells

Thomas Paul Weiss, Omar Ramírez, Stefan Paetel +4

Cu(In,Ga)Se2 based solar cells exceed power conversion efficiencies of 23 %. Yet, the fill factor of these solar cells, with best values around 80 %, is relatively low (Si reaches…

cond-mat.mtrl-sci2022★ 18 cited

Post-deposition annealing and interfacial ALD buffer layers of SbSe/CdS stacks for reduced interface recombination and increased open-circuit voltages

Thomas Paul Weiss, Ignacio Minguez-Bacho, Elena Zuccalà +8

Currently, SbSe thin films receive considerable research interest as a solar cell absorber material. When completed into a device stack, the major bottleneck for further de…

physics.app-ph2022★ 23 cited

Solar cell efficiency, diode factor and interface recombination: insights from photoluminescence

T. Wang, F. Ehre, T. P. Weiss +6

Metastable defects can decisively influence the diode factor and thus the efficiency of a solar cell. The diode factor is also influenced by the doping level and the recombination…

cond-mat.mtrl-sci2021★ 35 cited

Near surface defects: Cause of deficit between internal and external open-circuit voltage in solar cells

Mohit Sood, Aleksander Urbaniak, Christian Kameni Boumenou +6

The presence of interface recombination in a complex multilayered thin-film solar structure causes a disparity between the internal open-circuit voltage (VOC,in), measured by photo…