Overview
- QIBEBT reports a crystal‑solvate pre‑seeding method that guides bottom‑up crystallization, enabling a nearly 50 cm mini‑module to reach 23.15% efficiency with less than a 3% loss from small cells, as published in Nature Synthesis on February 27.
- A University of Stuttgart‑led team demonstrates photoswitchable molecules at grain boundaries, yielding cells that keep over 95% of initial output and about 27% efficiency after UV exposure at 65°C and 600 thermal cycles from –40°C to +85°C, reported in Nature Energy.
- An earlier QIBEBT interface strategy forms a confined 2D/3D perovskite at the buried contact using SnO2‑TGA‑OAm, cutting buried‑interface defects by over 90% and delivering 26.19% for small cells and a certified 22.68% for modules.
- Scaling results include a 21.54 cm² module at 23.44% and a 64.80 cm² module at 22.22%, underscoring reduced performance loss when moving from cells to larger areas.
- Huazhong University simulations identify an optimal tunnel‑junction interlayer work function near 5.1 eV that balances carrier tunneling, pointing to junction resistances on the order of 10^-2 ohm·cm² for all‑perovskite tandems.