Fabrication of Macroporous Silicon in Organic Electrolytes and their Luminescence

The quasi-regular arrangements porous silicon was fabricated by by electrochemical process using organic solutions with front-side illumination, and SEM showed that the morphology of porous silicon was dependent sensitively on the current density, organic electrolytes and their concentration. The re...

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Bibliographic Details
Published in:	Key engineering materials 2017-08, Vol.748, p.127-131
Main Authors:	Li, Wu Lin, Ma, Yan, Li, Gen Rong, Yang, Wen Jing, Zou, Xiao, Long, Mei, Xu, Yi, Li, Yan Fei
Format:	Article
Language:	eng
Subjects:	Electrolytes Luminescence Morphology Nonaqueous electrolytes Porous silicon Silicon
Online Access:	Get full text
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Summary:	The quasi-regular arrangements porous silicon was fabricated by by electrochemical process using organic solutions with front-side illumination, and SEM showed that the morphology of porous silicon was dependent sensitively on the current density, organic electrolytes and their concentration. The results indicate that N-dimethylformamide (DMF) is the best organic solution and quasi-regular arranged pores can be well organized in 20%HF/DMF solution. The luminescence shows fresh porous silicon can emit the red luminescence at room temperature and quench after nanoporous layer destroyed.
ISSN:	1013-9826 1662-9795 1662-9795