For all the promise they are showing in converting sunlight into electricity at ever-improving efficiencies, perovskite solar cells still have some flaws that must be addressed for them to enter ...

Photo of ultrathin on-chip solar cells. The cells are the green squares and include an ultrathin layer of light-absorbing GaAs, which is key to their radiation tolerance. The surface of each green ...

PV cells are primarily composed of semiconductor materials that have a higher conductivity than insulators. However, these materials are not good conductors of electricity like metals. Different types ...

As low Earth orbit becomes more cluttered, it becomes increasingly necessary to use middle Earth orbits, and radiation-tolerant cell designs will be needed. Making photovoltaics thinner should ...

When photosynthetic cells absorb light from the sun, packets of energy called photons leap between a series of light-harvesting proteins until they reach the photosynthetic reaction center. There, ...

Solar cells, devices that can convert sunlight into electricity, are among the most promising solutions to source energy ...

Nanotube length threshold: NIST experiments using human lung cells demonstrate that DNA-wrapped single-walled carbon nanotubes longer than about 200 nanometers are excluded from cells, while shorter ...