Corrugation Architecture Enabled Ultraflexible Wafer‐Scale High‐Efficiency Monocrystalline Silicon Solar Cell |
| |
Authors: | Rabab R Bahabry Arwa T Kutbee Sherjeel M Khan Adrian C Sepulveda Irmandy Wicaksono Maha Nour Nimer Wehbe Amani S Almislem Mohamed T Ghoneim Galo A Torres Sevilla Ahad Syed Sohail F Shaikh Muhammad M Hussain |
| |
Institution: | 1. Integrated Nanotechnology Lab and Integrated Disruptive Electronic Applications (IDEA) Lab, Material Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia;2. Integrated Nanotechnology Lab and Integrated Disruptive Electronic Applications (IDEA) Lab, Electrical Engineering, Computer Electrical and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia;3. Department of Electrical Engineering and Information Technology, Swiss Federal Institute of Technology (ETH) Zurich, Zürich, Switzerland;4. Imaging and Characterization Lab Core Facilities, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia;5. Nanofabrication Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia |
| |
Abstract: | Advanced classes of modern application require new generation of versatile solar cells showcasing extreme mechanical resilience, large‐scale, low cost, and excellent power conversion efficiency. Conventional crystalline silicon‐based solar cells offer one of the most highly efficient power sources, but a key challenge remains to attain mechanical resilience while preserving electrical performance. A complementary metal oxide semiconductor‐based integration strategy where corrugation architecture enables ultraflexible and low‐cost solar cell modules from bulk monocrystalline large‐scale (127 × 127 cm2) silicon solar wafers with a 17% power conversion efficiency. This periodic corrugated array benefits from an interchangeable solar cell segmentation scheme which preserves the active silicon thickness of 240 µm and achieves flexibility via interdigitated back contacts. These cells can reversibly withstand high mechanical stress and can be deformed to zigzag and bifacial modules. These corrugation silicon‐based solar cells offer ultraflexibility with high stability over 1000 bending cycles including convex and concave bending to broaden the application spectrum. Finally, the smallest bending radius of curvature lower than 140 µm of the back contacts is shown that carries the solar cells segments. |
| |
Keywords: | CMOS devices c‐Si solar cells flexible PV high efficiency large‐scale photovoltaics |
|
|