Efficient 1.53 μm emission and energy transfer in Si/Er-Si-O multilayer structure

▶ Strong 1.53 μm light emission is achieved in Si/Er-Si-O multilayer structure. ▶ Energy transfer between Si well layer and Er3+ in Er-Si-O sublayer is evidenced. ▶ Si/Er-Si-O multilayer shows much low temperature induced luminescence quenching.