A combined approach to fabricating Si nanocrystals with high photoluminescence intensity
A combined approach to fabricating Si nanocrystals with high photoluminescence intensity
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一种制备高光致发光强度硅纳米晶体的组合方法
DOI:
10.1016/j.apsusc.2008.10.052
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发表时间:
2009
影响因子:
6.7
通讯作者:
中科院分区:
文献类型:
--
作者:
This work demonstrates that by combining three methods with different mechanisms to enhance the photoluminescence (PL) intensity of Si nanocrystals embedded in SiO2(or Si-nc:SiO2), a promising material for developing Si light sources, a very high PL intensity can be achieved. A 30-layered sample of Si-nc:SiO2/SiO2was prepared by alternatively evaporating SiO and SiO2onto a Si(100) substrate followed by thermal annealing at 1100°C. This multilayered sample possessed a fairly high PL efficiency of 14% as measured by Greenham's method, which was 44 times that of a single-layered one for the same amount of excess Si content. Based on this multilayered sample, treatments of CeF3doping and hydrogen passivation were subsequently applied, and a high PL intensity which was 167 times that of a single-layered one for the same amount of excess Si content was achieved.
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影响因子:
64.8
作者:
Lorenzo Pavesi;L. D. Negro;C. Mazzoleni;G. Franzò;F. Priolo
通讯作者:
Lorenzo Pavesi;L. D. Negro;C. Mazzoleni;G. Franzò;F. Priolo
影响因子:
24.2
作者:
Fauchet, Philippe M.
通讯作者:
Fauchet, Philippe M.
影响因子:
4
作者:
Zacharias, M;Heitmann, J;Bläsing, J
通讯作者:
Bläsing, J
影响因子:
4
作者:
Yudan Wang;G. Kong;Weixi Chen;H. Diao;Chang-Nan Chen;Si-jia Zhang;X. Liao
通讯作者:
Yudan Wang;G. Kong;Weixi Chen;H. Diao;Chang-Nan Chen;Si-jia Zhang;X. Liao
影响因子:
3.9
作者:
Dal Negro, L;Pavesi, L;Priolo, F
通讯作者:
Priolo, F