Si-based light emission at 1530 nm with optical gain using mixture of Er/sub 2/O/sub 3/, P/sub 2/O/sub 5/, Yb/sub 2/O/sub 3/ nanoparticles and spin-on glass

We explore a new way of light emission at 1530 nm. The light-emitting layer contains the mixture of Er/sub 2/O/sub 3/ nanoparticles and spin-on glass. It is deposited on silicon wafers. This layer is very thin, but exhibits optical gain. We can also improve the emission efficiency by introducing P/sub 2/O/sub 5/ and Yb/sub 2/O/sub 3/ nanoparticles.