A novel wrap-around metal contact optimized for radial p-n junction Si wire solar cells
- Home Snpl
- Aug 12, 2023
- 1 min read
Sun-Mi Shin, Jin-Young Jung, Kwang-Tae Park, Han-Don Um, Sang-Won Jee, Yoon-Ho Nam, Jung-Ho Lee
Abstract
We demonstrate wrap-around top metal contacts for radial junction silicon wire solar cells. A thin Ag sheet surrounds the silicon wires close to the planar bottom contacts. A fill factor of 65.4% was obtained, which is higher than that of conventional top contacts made using transparent conductive oxides and metal grids.
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The idea of a wrap-around metal contact optimized for radial p-n junction Si wire solar cells is really promising—especially for improving carrier collection and reducing series resistance in those high-aspect-ratio structures. It seems aligned with recent work on silicon microwire solar cells showing advantages of radial junctions for light absorption and charge collection.
Snow Rider