Assertion: solar cell's efficiency | /r/HasProperty | achieved
Facets:
value: by using multiple junction cells
type: MANNER
value: as of september
type: TEMPORAL
Source sentences:
text: This increased efficiency can be achieved by increasing the interfacial surface area between the organic and the inorganic to facilitate charge separation and by controlling the nanoscale lengths and periodicity of each structure so that charges are allowed to separate and move toward the appropriate electrode without recombining.
text: Designing with these factors in mind is how higher efficiencies can be achieved.
text: The improved efficiency for a DSSC can be achieved by adding about 0.5 M of pyridine derivative within the electrolyte, due to which an increase in the value of V OC occurs.
text: To induce a bathochromic shift and augment the absorption, a number of thiophene units could be increased in the spacers, and by controlling the length of these thiophene units or chain, higher efficiencies up to two to three units can be achieved , as the π-conjugated spacers used previously were thiophenes linked directly or through double bonds to the donor moiety .
text: As of September 2013, the highest efficiencies have been achieved by using multiple junction cells at high solar concentrations (44.7% by the Fraunhofer ISE, Soitec, CEA-Leti and the Helmholtz-Zentrum Berlin).