Improving Perovskite/CIGS Tandem Solar Cells for Higher Power Conversion Efficiency through Light Management and Bandgap Engineering
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Perovskite and chalcopyrite materials are excellent absorbers for highly efficient, all-thin-film tandem solar cells. This work presents a certified world record for such a device, achieving a power conversion efficiency of 24.6 ± 1.1% under steady-state conditions. The best IV parameters extracted from certified current–voltage measurements presented a short-circuit current density of around 19.3 mA/cm 2, an open-circuit voltage of 1.765 V, and a fill factor of 71.8%. In comparison to our previous record, the current density improved considerably, mainly due to the lowering of the bandgap of the bottom subcell and the improved optics of the top perovskite cell.
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Awards: G4612587254, Scaleable High-Power Output and Low Cost Made-to-Measure Tandem Solar Modules Enabling Specialised PV Applications, Verbundvorhaben: Indu-bottomCIGS - 'Bottom Device' Entwicklung für (flexible) Tandemsolarzellen basierend auf industriekompatiblen CIGS Verbindungshalbleitern, Teilvorhaben: CIGS aus Koverdampfung, flexible Substrate, temperaturstabiler Heteroübergang, TCO mit hoher Elektonenbeweglichkeit, G8627675694
OpenAlex ID: W4414553556