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 inKey engineering materials Vol. 748; pp. 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 Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.08.2017
Subjects
Electrolytes
Luminescence
Morphology
Nonaqueous electrolytes
Porous silicon
Silicon
Macroporous Silicon
Organic Electrolyte
Luminescence
Quasi-Regular Arrays
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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.
Bibliography:Selected, peer reviewed papers from the 6th International Conference of Advanced Materials and Engineering Materials (ICAMEM), March 11-12, 2017, Singapore
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.748.127