Perovskite–Silicon Tandem Solar Cells Improved by Nano-Optics solarcells perovskite silicon nanomaterials nanooptics
Study: Nano-optical designs for high-efficiency monolithic perovskite–silicon tandem solar cells. Image Credit: Dave Weaver/Shutterstock.com
Monolithic dual-terminal perovskite-on-silicon tandem solar cells have recently managed to overcome the physiological limitation of traditional crystalline-silicon single-junction photovoltaic cells by achieving a PCE of greater than 31%. Figure 2. Perovskite film formation and morphology. a,b, Representative spin-coated perovskite films on planar and nanotextured silicon bottom cells covered by Me-4PACz . c, Fabrication yield of PCTSCs processed on planar and nanotextured silicon bottom cells. d,e, Side-view photographs of perovskite solution droplets on planar and nanotextured silicon substrate with roll-off angle and static contact angle indicated.
Related StoriesDifferent techniques for implementing light control textures in nanostructured PSTSCs have been examined thus far, either by altering the perovskite deposition method while keeping the pyramid texture unaltered or by modifying the pyramidal textures in a way that would make perovskite solution processing possible.
To mitigate parasitic absorption losses at near-infrared wavelengths, a reflector containing a dielectric buffer layer was added on the rear of the nanostructured silicon bottom cell. Findings of the Study In this work, the research team added gentle nanotexturing and an enhanced back-reflector arrangement into monolithic nanostructured PSTSCs.
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