Assertion: solar cell's conversion efficiency | /r/HasProperty | low
Facets:
value: compared to inorganic materials
type: OTHER
value: very
type: DEGREE
Source sentences:
text: The difficulty, however, is that the conversion efficiency of existing phosphors exhibiting up- or down-conversion is low, and is typically narrow band.
text: They have low quantum efficiencies (<1%) and low power conversion efficiencies (<0.1%).
text: Energy conversion efficiencies achieved to date using conductive polymers are very low compared to inorganic materials.