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Fluorescent Logic Gates Chemically Attached to Silicon Nanowires

Authors

  • Lixuan Mu Dr.,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3513
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  • Wensheng Shi Prof.,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3513
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  • Guangwei She Dr.,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3513
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  • Jack C. Chang Dr.,

    1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-3513
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  • Shuit-Tong Lee Prof.

    1. Center of Super-Diamond and Advanced Film (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China), Fax: (+852) 2784-4696
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  • This research was supported by the Chinese Academy of Sciences “Hundred Talents Program”, NSF of China (grant no. 50772117, 10874189), and MOST of China (grant no. 2006CB933000, 2006AA03Z302). S. T. Lee acknowledges support from the General Research Fund of Research Grants Council of Hong Kong SAR (CityU 101807) and a CityU Strategic Research Grant (7002275). We thank Prof. S. K. Wu for helpful discussions.

Abstract

Durch Verankern einer Dansyleinheit auf Siliciumnanodrähten (SiNWs; siehe Bild) wurde ein chemisch gesteuertes, fluoreszierendes Logikgatter erhalten. Das Logikgatter nutzte pH-Änderungen sowie HgII- und Cl- oder Br-Ionen als Eingabe und die Fluoreszenz der modifizierten SiNWs als Ausgabesignal. Die modifizierten SiNWs konnten als Logikgatter mit drei Eingaben die Operationen YES und INH kombinieren.

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