Benefits of Multi-Layer Silicon Nanoparticles in Ultrathin Solar Cells: nanoparticles solarcells solarenergy silicon nanoenergy SciReports
By Shaheer RehanAug 8 2022Reviewed by Megan Craig, M.Sc. Nanoparticle solar cells offer the unique ability to transform sunlight into electrical energy with decreased material usage, shortened deposition periods, and enhanced carrier collection in defective absorbing materials.
Ultrathin cells are likely to offer several advantages. When using rare elements, minimizing material usage is a straightforward way of increasing cost savings. Concerning the optical aspect, a cell's absorbing behavior is the fundamental characteristic that defines how effective a cell design is at generating a greater photocurrent.
Incorporating non-uniform rough surfaces has shown encouraging results among several strategies for increasing short circuit current in ultrathin photovoltaics. They demonstrated the ability of the naturally textured design to segregate and transmit photo-generated carriers and absorb light. Findings of the Study In this research, multi-layer silicon nanoparticles with submicron sizes were proposed as the absorbing elements in a nanoparticle solar cell.
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Seven-month-old infants detect symmetrical structures in multi-featured abstract visual patternsThe present study investigated 7-month-old infants’ ability to perceive structural symmetry in mosaic-like abstract visual patterns. We examined infants’ (n=98) spontaneous looking behaviour to mosaic-like sequences with symmetrical and asymmetrical structures. Sequences were composed of square tiles from two categories that differed in their colour scheme and internal shape. We manipulated sequence length (3 or 5 tiles) and abstractness of the symmetry (token vs. category level). The 7-month-olds discriminated structurally symmetrical from asymmetrical mosaics in the first half of the test phase (first 8 trials). Sequence length, level of symmetry, or number of unique tiles per sequence did not significantly modulate infants’ looking behaviour. These results suggest that very young infants detect differences in structural symmetry in multi-featured visual patterns.
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