Solar cells are made from semiconductors whose ability to respond to light is determined by their band gaps (energy gaps). Different colors have different energies, and no single semiconductor has a ...

A UK-Australian research group has built an intermediate band solar cell with a quantum ratchet semiconductor nanostructure that reportedly increases the ratchet band state lifetime of the device.

Researchers in Spain have analyzed the most important technologies for the development of intermediate-band solar cells (IBSC), a solar PV technology that was conceived to exceed the Shockley–Queisser ...