Cite this article:
Ma Zhong-Yuan, Guo Si-Hua, Chen De-Yuan, Wei De-Yuan, Yao Yao, Zhou Jiang, Huang Rui, Li Wei, Xu Jun, Xu Ling, Huang Xin-Fan, Chen Kun-Ji, Feng Duan. The origin of blue photoluminescence from nc-Si/SiO2 multilayersJ. Chin. Phys. B, 2008, 17(1): 303-306.
Ma Zhong-Yuan, Guo Si-Hua, Chen De-Yuan, Wei De-Yuan, Yao Yao, Zhou Jiang, Huang Rui, Li Wei, Xu Jun, Xu Ling, Huang Xin-Fan, Chen Kun-Ji, Feng Duan. The origin of blue photoluminescence from nc-Si/SiO2 multilayersJ. Chin. Phys. B, 2008, 17(1): 303-306.
|
The origin of blue photoluminescence from nc-Si/SiO2 multilayers
-
Abstract
Intensive blue photoluminescence (PL) was observed at room temperature from the nanocrystalline-Si/SiO_2 (nc-Si/SiO_2) multilayers (MLs) obtained by thermal annealing of SiO/SiO_2 MLs for the first time. By controlling the size of nc-Si formed in SiO sublayer from 3.5 to 1.5 nm, the PL peak blueshifts from 457 to 411 nm. Combining the analysis of TEM, Raman and absorption measurement, this paper attributes the blue PL to multiple luminescent centres at the interface of nc-Si and SiO_2. -
DownLoad: