Traditional photovoltaic (PV) panels convert sunlight into electricity but can't use the entire solar spectrum, especially the infrared part ... SiO 2 nanofluid as a beam splitter for SBS hybrid ...

The spectrometer carried by Mariner 6 and 7 was a 10-inch refelctor telescope that channeled IR light to a beam splitter and then to two different detectors. Channel 1 used a mercury-germanium sensor ...