Earth's low orbit is filling up, meaning radiation-tolerant cell designs are required as satellites head to higher orbits. Will these new ones do?
Scientists have developed a radiation-tolerant photovoltaic cell design that features an ultrathin layer of light-absorbing material. According to a new study published today in the, the devices feature cells with a surface one-thousandth the thickness of a human hair.
Studying distant planets and moons will also require radiation-tolerant cells. For instance, Europa, a moon of Jupiter, has one of the solar system's harshest radiation environments. Therefore, radiation-tolerant equipment will be necessary to land a solar-powered spacecraft on Europa.The researchers used the semiconductor gallium arsenide to construct two types of photovoltaic devices. One was an on-chip design created by stacking various materials- one on top of the other.
'The ultra-thin geometries offer favorable performance by two orders of magnitude' compared to thicker devices
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