NREL maintains a chart of the highest confirmed conversion efficiencies for research cells for a range of photovoltaic technologies. This is an interactive version of that chart.

Devices included in this chart of the current state of the art have efficiencies that are confirmed by independent, recognized test labs—e.g., NREL, AIST, JRC-ESTI, and Fraunhofer-ISE—and are reported on a standardized basis. The measurements for new entries must be with respect to Standard Test or Reporting Conditions as defined by the global reference spectrum for flat-plate devices and the direct reference spectrum for concentrator devices as listed in standards IEC 60904-3 edition 2 or ASTM G173. The reference temperature is 25°C, and the area is the cell total area or the area defined by an aperture. See the static version below, or go to Interactive Best Research-Cell Efficiency Chart | Photovoltaic Research | NREL for the interactive version and additional information.