NASA's Photovoltaic Energy Research Plans and Programs
National Aeronautics and Space Administration
NASA
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Solar Cell Manifest
(1) 4x8 cm SolAero Z4J, triple junction III-V
(1) 4x8 cm SpectroLab XTJ prime, triple junction III-V
(2) 4x8 cm SpectroLab XTE-SF triple junction III-V
(2) 4x9 cm SolAero IMM alpha 5 junction III-V
(2) 2x2 cm ASU Silicon Heterojunction Intrinsic Thin
Film (HIT)
(8) 2x2 cm Spectrolab UTJ triple junction III-V with ITO
coated connected coverglass for Surface Charge
Experiment
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XTE
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IHH
UTJ
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XTE
Si
Si
IMM-a
XTJ
Z4J
IMM-a
Surface Charge Experiment
HAVE YOURSELF A PILS
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19380304
YOU'VE EARNED IT
2x2cm UTJ solar cells strung in series and shorted through a burden resistor which sets a bias potential from OV to
18V
Maximum current is approximately 100mA, not enough for secondary arcing under any voltage.
Solar cell coverglass coated with <100kOhm/sq ITO to bleed charge, but the charge is isolated by high dielectric
constant encapsulant
Wires are soldered to coverglass to short all surfaces and connect to large series resistor
Back-end of resistor to be fed to plasma monitoring measurement board
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