title: The modulation on luminescence of Er3+-doped silicon-rich oxide films by the structure evolution of silicon nanoclusters.
abstract: A series of silicon-rich oxide (SRO) and erbium-doped SRO (SROEr) films imbedded with structural tunable silicon nanoclusters (Si NCs) have been fabricated using sputtering followed by post-annealing. The coalescence of Si NCs is found in the films with large Si excess. The energy transfer rate between Si NCs and Er3+ is enhanced, but the luminescence efficiencies of both Si NCs and Er3+ are reduced by the coalescent microstructures. Optimization of the microstructures of Si NCs is performed, and the preferential optical performance for both Si NCs and Er3+ could be achieved when Si NCs were separated in microstructures.
authors: State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China. mselds@zju.edu.cn.
authors: Lu
authors: L
authors: Jin
authors: Dongsheng
authors: D
authors: Li
authors: Luelue
authors: L
authors: Xiang
authors: Feng
authors: F
authors: Wang
authors: Deren
authors: D
authors: Yang
authors: Duanlin
authors: D
authors: Que