154
A. Shah
Fig. 6.16 Efficiencies of three types of solar cells as a function of light intensity: The superior
behaviour of amorphous silicon (a-Si) cells in the range of Indoor Lighting is clearly visible. Note
that the Figure shows relative efficiencies only: efficiencies at various light intensities divided by
the efficiency at one sun; Figure is based on data in [1] (Fig. 4.28)
Fig. 6.17 External quantum
efficiency (EQE) curves for
an amorphous silicon solar
cell and a crystalline silicon
solar cell (of the Al-BSF
type, see Chap. 5). Figure is
based on data in [1]
(Fig. 4.56). Note that modern
c-Si solar cells have much
broader EQE curves, so the
cell uses more of the solar
spectrum
6.2.4 Applications of Amorphous Silicon Solar Cells
There are a multitude of small objects, fitted with solar cells as power supplies.
These range from calculators and other objects of general utility (garden lamps,
remote controls for shutters), backpacks (rucksacks), over solar watches, to solar
gadgets and toys.
A. Shah
Fig. 6.16 Efficiencies of three types of solar cells as a function of light intensity: The superior
behaviour of amorphous silicon (a-Si) cells in the range of Indoor Lighting is clearly visible. Note
that the Figure shows relative efficiencies only: efficiencies at various light intensities divided by
the efficiency at one sun; Figure is based on data in [1] (Fig. 4.28)
Fig. 6.17 External quantum
efficiency (EQE) curves for
an amorphous silicon solar
cell and a crystalline silicon
solar cell (of the Al-BSF
type, see Chap. 5). Figure is
based on data in [1]
(Fig. 4.56). Note that modern
c-Si solar cells have much
broader EQE curves, so the
cell uses more of the solar
spectrum
6.2.4 Applications of Amorphous Silicon Solar Cells
There are a multitude of small objects, fitted with solar cells as power supplies.
These range from calculators and other objects of general utility (garden lamps,
remote controls for shutters), backpacks (rucksacks), over solar watches, to solar
gadgets and toys.