Modulation of the photoluminescence of Si quantum dots by means of CO2 laser pre-annealing
Modulation of the photoluminescence of Si quantum dots by means of CO2 laser pre-annealing
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CO2 激光预退火调制 Si 量子点的光致发光
DOI:
10.1016/j.apsusc.2010.03.080
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发表时间:
2010-06
期刊:
影响因子:
--
通讯作者:
Rong-ling Xiong
中科院分区:
文献类型:
--
作者:
Yong-bin Chen;Yong Ren;You-yuan Zhao;Ming Lu陆明;Rong-ling Xiong
Si quantum dots (QDs) embedded in SiO2can be normally prepared by thermal annealing of SiOx(x<2) thin film at 1100°C in an inert gas atmosphere. In this work, the SiOxthin film was firstly subjected to a rapid irradiation of CO2laser in a dot by dot scanning mode, a process termed as pre-annealing, and then thermally annealed at 1100°C for 1h as usual. The photoluminescence (PL) intensity of Si QD was found to be enhanced after such pre-annealing treatment. This PL enhancement is not due to the additional thermal budget offered by laser for phase separation, but attributed to the production of extra nucleation sites for Si dots within SiOxby laser irradiation, which facilitates the formation of extra Si QDs during the subsequent thermal annealing.
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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
DOI:
10.1049/ep.1970.0039
发表时间:
1970
期刊:
Electronics and Power
影响因子:
--
作者:
G. Pridham
通讯作者:
G. Pridham
影响因子:
4
作者:
Chun-Jung Lin;Gong-Ru Lin
通讯作者:
Chun-Jung Lin;Gong-Ru Lin
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:
U. Kahler;H. Hofmeister
通讯作者:
U. Kahler;H. Hofmeister