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| NREL's newly updated Best Research-Cell Efficiency Chart adds a new hybrid tandem category and condenses the subcategories under the III-V multijunction cell category. |
The National Renewable Energy Laboratory (NREL) has unveiled an updated version of its renowned Best Research-Cell Efficiency Chart, a staple resource for tracking the progression of photovoltaic (PV) technologies. This chart, a frequently visited page on NREL’s website, has long served as a barometer of advancements in the PV field. Now, in response to the evolving landscape of solar technology, NREL has introduced several enhancements aimed at providing a more comprehensive overview.
One notable addition is the inclusion of a new "Hybrid Tandems" category, reflecting the increasing interest in tandem PV cells. These cells, composed of two distinct absorbing layers, aim to maximize solar spectrum absorption. The chart now showcases record tandem cells with layers comprising different PV materials, such as Perovskite/Si and Perovskite/CIGS, among others. Additionally, to streamline the chart's presentation, the III-V Multijunction Cells category has been condensed, simplifying the representation of high-efficiency cells.
Furthermore, to address the growing significance of all-perovskite two-terminal tandem cells, NREL has introduced a new subcategory under Emerging PV. This addition highlights the absolute record efficiency for such tandems, irrespective of the number of junctions. These updates reflect the dynamism of the PV industry and ensure that the Best Research-Cell Efficiency Chart remains a valuable resource for researchers and industry professionals alike.
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