Panasonic BP-5917C40 Technical Handbook page 6

THIN-FILM SOLAR CELLS (SUNCERAM II) – CONTINUED
1.8. Temperature characteristics
The performance of solar cells is such that the short-
circuit current increases and the open-circuit voltage
decreases as the temperature rises. Since the rate at
which the open-circuit voltage decreases is higher than
the rate at which the short-circuit current increases, the
maximum output is also reduced.
For indoor applications
30
20
10
0
10
20
30
10
Panasonic
Light source: 200 lux fluorescent light
Voc(-0.64%/˚C)
Isc(0.1%/˚C)
0 10 20 30 40 50
Temperature (˚C)
Solar Cells Handbook, Page 5
However, as far as the operating current is concerned,
since the operating voltage is generally set slightly
toward the short-circuit current side from the maximum
output operating point, the operating current peaks at
around room temperature and gently falls both below
and above the temperature.
For outdoor applications
30
20
10
0
10
20
30
60 10
Light source: solar simulator 100mW/cm
Voc(-0.15%/˚C)
Isc(0.1%/˚C)
0 10 20 30 40 50
Temperature (˚C)
2
60
August 1998