Assertion: semiconductor's bandgap | /r/HasProperty | estimated up to around 1.5 ev
Facets:
value: for solar-energy conversion
type: PURPOSE
value: variously
type: DEGREE
value: from around 1.0 ev
type: TEMPORAL
Source sentences:
text: For solar-energy conversion using a single junction photovoltaic cell, the ideal bandgap has been variously estimated from around 1.0 eV up to around 1.5 eV (depending on various assumptions) because that low wavelength threshold covers nearly the entire solar spectrum that reaches the Earth's surface, but a lower-bandgap single-junction cell wastes a large portion of that power by inefficiently converting the shorter-wavelength parts of the solar spectrum.