Photoluminescence of Si from Si nanocrystal-doped SiO2/Si multilayered sample
Photoluminescence of Si from Si nanocrystal-doped SiO2/Si multilayered sample
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硅纳米晶掺杂 SiO2/Si 多层样品中 Si 的光致发光
DOI:
10.1016/j.apsusc.2011.06.068
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发表时间:
2011-09
期刊:
影响因子:
--
通讯作者:
Miao Zhang
中科院分区:
文献类型:
--
作者:
Yong-bin Chen;陆明;Yong Ren;Xing-wang Zhang;You-yuan Zhao;Miao Zhang
A multilayered Si nanocrystal-doped SiO2/Si (or Si-nc:SiO2/Si) sample structure is studied to acquire strong photoluminescence (PL) emission of Si via modulating excess Si concentration. The Si-nc:SiO2results from SiO thin film after thermal annealing. The total thickness of SiO layer remains 150nm, and is partitioned equally into a number of sublayers (N=3, 5, 10, or 30) by Si interlayers. For each N-layered sample, a maximal PL intensity of Si can be obtained via optimizing the thickness of Si interlayer (or dSi). This maximal PL intensity varies with N, but the ratio of Si to O is nearly a constant. The brightest sample is found to be that of N=10 and dSi=1nm, whose PL intensity is ∼5 times that of N=1 without additional Si doping, and ∼2.5 times that of Si-nc:SiO2prepared by co-evaporating of SiO and Si at the same optimized ratio of Si to O. Discussions are made based on PL, TEM, EDX and reflectance measurements.
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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:
64.8
作者:
LU, ZH;LOCKWOOD, DJ;BARIBEAU, JM
通讯作者:
BARIBEAU, JM
影响因子:
3.9
作者:
U. Kahler;H. Hofmeister
通讯作者:
U. Kahler;H. Hofmeister
影响因子:
3.9
作者:
Dal Negro, L;Pavesi, L;Priolo, F
通讯作者:
Priolo, F
DOI:
--
发表时间:
1999
期刊:
--
影响因子:
--
作者:
O. Bisi;S. U. Campisano;L. Pavesi;F. Priolo
通讯作者:
O. Bisi;S. U. Campisano;L. Pavesi;F. Priolo