Fraunhofer’s MaNiTU project developed perovskite-silicon tandem solar cells with 31.6% efficiency using scalable production methods. (Image Source: Fraunhofer ISE)
Over the past five years, six Fraunhofer Institutes collaborated on the “MaNiTU” project to advance perovskite-silicon tandem solar cells for industrial use. The German-based team developed scalable processes, achieving 31.6% efficiency on a 1 cm² tandem cell with a hybrid deposition method. Larger demonstrators over 100 cm² were produced with screen-printed metallization. To address temperature sensitivity, a process chain using SALD hybrid systems (ALD, evaporation, and sputtering) was implemented, keeping production below 100°C. New contact materials were designed for G12 wafers, enhancing performance. While lead-free perovskites were explored, they lacked sufficient efficiency. The project also developed recycling methods for lead-based perovskites to support a circular economy. Advanced analysis techniques like TEM and focused ion beam (FIB) characterized cell microstructures and interfaces can achieve a theoretical efficiency limit of 39.5%, says Fraunhofer.
Delft University researchers propose integrating inductors into PV modules to improve shade tolerance using MPPT. (Image Source: ScienceDirect)
Through advanced passivation techniques, JA Solar’s Bycium+ cell has achieved a record-breaking open-circuit voltage of 748.6 mV. (Image Source: JA Solar)
To tackle challenges and advance AI-driven maintenance for a net-zero solar future, as revealed by Fluke’s survey. (Image Credit/Source: PublicDomainPictures/Pixabay)
The Project equips Thai schools and communities with solar energy and ICT skills. (Image Source: PRNewswire)