The chip starts out as a thin wafer of P-type silicon. This is then coated with a layer of silicon dioxide -- kind of a silicon rust, which doesn't conduct electricity. On top of this is placed a ...

For that reason, the direct epitaxial growth of high-quality III-V optical gain materials selectively on large-size silicon photonics wafers remains a highly sought-after objective.” The large ...

For comparison, a reference cell with a polished front surface and without the black silicon wafer achieved an efficiency of 11.5%, an open-circuit voltage of 600 mV, a short-circuit current ...

Imec has demonstrated electrically-driven GaAs-based multi-quantum-well nano-ridge laser diodes fully, monolithically fabricated on 300 mm silicon wafers in its CMOS pilot prototyping line. Achieving ...