We report the development of bio-compatible cellulose nanofibers doped with light emitting silicon nanocrystals and Au nanoparticles via facile electrospinning. By performing photoluminescence (PL) spectroscopy as a function of excitation wavelength, we demonstrate plasmon-enhanced PL by a factor of 2.2 with negligible non-radiative quenching due to plasmon-enhanced scattering of excitation light from Au nanoparticles to silicon nanocrystals inside the nanofibers. These findings provide an alternative approach for the development of plasmon-enhanced active systems integrated within the compact nanofiber geometry. Furthermore, bio-compatible light-emitting nanofibers prepared by a cost-effective solution-based processing are very promising platforms for biophotonic applications such as fluorescence sensing and imaging.
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27 July 2015
Research Article|
July 28 2015
Enhanced photoluminescence of Si nanocrystals-doped cellulose nanofibers by plasmonic light scattering
Hiroshi Sugimoto;
Hiroshi Sugimoto
a)
1Department of Electrical and Computer Engineering and Photonics Center,
Boston University
, 8 Saint Mary Street, Boston, Massachusetts 02215, USA
2Department of Electrical and Electronic Engineering, Graduate School of Engineering,
Kobe University
, Rokkodai, Nada, Kobe 657-8501, Japan
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Ran Zhang;
Ran Zhang
a)
3Division of Materials Science and Engineering,
Boston University
, 15 Saint Mary's Street, Brookline, Massachusetts 02446, USA
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Björn M. Reinhard;
Björn M. Reinhard
4Department of Chemistry and Photonics Center,
Boston University
, Boston, Massachusetts 02215, USA
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Minoru Fujii;
Minoru Fujii
2Department of Electrical and Electronic Engineering, Graduate School of Engineering,
Kobe University
, Rokkodai, Nada, Kobe 657-8501, Japan
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Giovanni Perotto;
Giovanni Perotto
5Department of Biomedical Engineering and Department of Physics,
Tufts University
, 4 Colby Street, Medford, Massachusetts 02155, USA
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Benedetto Marelli;
Benedetto Marelli
5Department of Biomedical Engineering and Department of Physics,
Tufts University
, 4 Colby Street, Medford, Massachusetts 02155, USA
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Fiorenzo G. Omenetto;
Fiorenzo G. Omenetto
5Department of Biomedical Engineering and Department of Physics,
Tufts University
, 4 Colby Street, Medford, Massachusetts 02155, USA
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Luca Dal Negro
Luca Dal Negro
b)
1Department of Electrical and Computer Engineering and Photonics Center,
Boston University
, 8 Saint Mary Street, Boston, Massachusetts 02215, USA
3Division of Materials Science and Engineering,
Boston University
, 15 Saint Mary's Street, Brookline, Massachusetts 02446, USA
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Hiroshi Sugimoto
1,2,a)
Ran Zhang
3,a)
Björn M. Reinhard
4
Minoru Fujii
2
Giovanni Perotto
5
Benedetto Marelli
5
Fiorenzo G. Omenetto
5
Luca Dal Negro
1,3,b)
1Department of Electrical and Computer Engineering and Photonics Center,
Boston University
, 8 Saint Mary Street, Boston, Massachusetts 02215, USA
2Department of Electrical and Electronic Engineering, Graduate School of Engineering,
Kobe University
, Rokkodai, Nada, Kobe 657-8501, Japan
3Division of Materials Science and Engineering,
Boston University
, 15 Saint Mary's Street, Brookline, Massachusetts 02446, USA
4Department of Chemistry and Photonics Center,
Boston University
, Boston, Massachusetts 02215, USA
5Department of Biomedical Engineering and Department of Physics,
Tufts University
, 4 Colby Street, Medford, Massachusetts 02155, USA
a)
H. Sugimoto and R. Zhang contributed equally to this work.
b)
Author to whom correspondence should be addressed. Electronic mail: [email protected].
Appl. Phys. Lett. 107, 041111 (2015)
Article history
Received:
May 28 2015
Accepted:
July 20 2015
Citation
Hiroshi Sugimoto, Ran Zhang, Björn M. Reinhard, Minoru Fujii, Giovanni Perotto, Benedetto Marelli, Fiorenzo G. Omenetto, Luca Dal Negro; Enhanced photoluminescence of Si nanocrystals-doped cellulose nanofibers by plasmonic light scattering. Appl. Phys. Lett. 27 July 2015; 107 (4): 041111. https://doi.org/10.1063/1.4927672
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