Marburger Studie zeigt, Recycling und Materialwahl sind Schlüssel für die Energiewende

The large-scale deployment of photovoltaics could create new raw material demands and has the potential to create large end-of-life waste management issues in the future. This Review explores methods ...

The large-scale deployment of photovoltaics could create new raw material demands and has the potential to create large end-of-life waste management issues in the future. This Review explores methods ...

Solvent treatment of laminated carbon electrodes reduces porosity, significantly lowering contact and sheet resistance. This improvement translates to enhanced device performance, enabling perovskite....

Perovskite solar cells achieve high power conversion efficiencies but usually rely on vacuum-deposited metallic contacts, leading to high material costs for noble metals and stability issues for more reactive metals. Carbon-based materials offer a cost-effective and potentially more stable alternative. The vast majority of carbon-electrode PSCs use the negative-intrinsic-positive (n-i-p) or “hole-transport-layer-free” architectures. Here, we present a systematic study to assess the compatibility of “inverted”, p-i-n configuration PSC contact layers with carbon top electrodes. We identify incompatibilities between common electron transport layers and the carbon electrode deposition process and previously unobserved semiconducting properties in carbon electrodes with unique implications for charge extraction and electronic behavior. To overcome these issues, we introduce a double-layer atomic layer deposited tin oxide (SnO2) and Poly(2,3-dihydrothieno-1,4-dioxin)-poly(styrenesulfonate) (PEDOT:PSS), yielding up to 16.1% PCE and a retained 94% performance after 500 h of outdoor aging. The study is a crucial step forward for printable, metal-electrode-free, and evaporation-free perovskite PV technologies.

YouTube video by Solar@FAU