Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation

Taku Saiki; Yukio Iida

doi:doi:10.11648/j.nano.20150305.11

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Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation

Taku Saiki, Yukio Iida

Published in American Journal of Nano Research and Applications (Volume 3, Issue 5)

Received: 6 August 2015 Accepted: 17 August 2015 Published: 24 August 2015

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Abstract

Si oxide powder is reduced by highly repetitive pulse laser ablation in liquid, and Si nanoparticles are produced efficiently with a low cost in a short time. A Si nanopaste with highly doped Si nanoparticles was sintered by using a hot plate. We succeeded in fabricating a sintered Si nano-polycrystalline for the first time. The structure and components of the fabricated sintered Si nano-polycrystalline were investigated by SEM and EDX analysis. Furthermore, the reduced Si nanoparticles and the sintered Si nano-polycrystalline were excited by violet light and stable photoluminescence (PL), which were observed in the visible regime. The peak wavelengths of the PL were 550 nm and 560 nm. Particularly, the intensity of the observed PL of the sintered Si nano-polycrystalline was five times higher than that of the reduced Si nanoparticles powder. This result is attributed to the PL being amplified inside the sintered Si nano polycrystalline. These experiments show that because the mean diameters of the Si nanocrystals in the reduced Si nanoparticles were below 2 nm, the structure of the Si nanocrystals changed to a direct-transition type; the bandgap energy of the Si nanocrystals changed from 1.1 eV to 2.25 eV, and PL in the visible regime was generated. Moreover, the possibility of Si photonics is discussed. The sintered Si nano-polycrystalline will be applicable to light waveguides, optical switches using a free carrier effect, and light amplifiers

Published in	American Journal of Nano Research and Applications (Volume 3, Issue 5)
DOI	10.11648/j.nano.20150305.11
Page(s)	82-88
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

SiO2, Si, Nanoparticles, Polycrystalline, Optical Waveguide, Optical Switch, Free Carrier Effect, Light Amplification, Photoluminescence, Laser Ablation in Liquids

References

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[3]	K. Saitow and T. Yamamura, “Effective Cooling Generates Efficient Emission: Blue, Green, and Red Light-Emitting Si Nanocrystals”, J. Phys. Chem. C, 113(19), pp.8465-8470 (2009).
[4]	N. Suzuki, Y. Yamada, T. Makino, T. Yoshida, “Laser Processing for Fabrication of Silicon Nanoparticles and Quantum Dot Functional Structures”, The Review of Laser Engineering, 31(8), pp.548-551 [in Japanese] (2003).
[5]	I. Umezu, A. Sugimura, M. Inada, T. Makino, K. Matsumoto, and M. Takata, "Formation of Nanoscale Fine-Structured Silicon by Pulsed Laser Ablation in Hydrogen Background Gas", Phys. Rev. B, 76, 045328-1-10 (2007).
[6]	M. Hirasawa, T. Orii, and T. Seto, “Synthesis of Visible-Light Emitting Si Nanoparticles by Laser Nano-prototyping”, J. of Aerosol Res., 20, pp.103-107 [in Japanese] (2005).
[7]	T. Saiki, T. Okada, K. Nakamura, T. Karita, Y. Nishikawa, and Y. Iida, “Air Cells Using Negative Metal Electrodes Fabricated by Sintering Pastes with Base Metal Nanoparticles for Efficient Utilization of Solar Energy”, Int. J. of Energy Science, 2(6), pp. 228-234 (2012).
[8]	L. Brus, “Electrinic Wave Functions in Semiconductor Clusters: Experiment and Theory”, J. Phys. Chem., 90, pp.2555-2560 (1986).
[9]	N. Hill and K. Whaley, “Size Dependence of Excitations in Silicon Nanocrystals”, Phy. Rev. Lett., 75, pp.1130-1133 (1995).
[10]	H. Kobayashi, Y. Iida, and Y. Omura, ”Single-Mode Silicon Optical Switch with T-Shaped SiO2 Optical Waveguide as a Control Gate”, Jpn. J. Appl. Phys., 41, pp.2563-2565 (2002).
[11]	D. K. Schroder, R. N. Thomas, and J. C. Swartz, “Free　Carrier Absorption in Silicon”, IEEE J. of Solid-state Circuits, SC-13, pp.180-187 (1978).
[12]	R. A. Soref and B. R. Bennet, “Electrooptical Effects in Silicon”, IEEE J. Q. E., 23(1), pp.123-129 (1987).
[13]	L. R. Nuenes, T. K. Liang, K. S. Abedin, D. V. Thourhout, P. Dumon, R. Baets, H. K.Tsang, T. Miyazaki, and M. Tsuchiya, “Low Energy Ultrafast Switching in Silicon Wire Wavegide”, ECOC 2005, 25-29 Sep. Glasgow, Scotland, Proceedings, 6, Paper Th 4.2.3.
[14]	R. Terawaki, Y. Takahashi, M. Chihara, Y. Inui, and S. Noda, “Ultrahigh-Q Photonic Crystal Nanocavities in Wide Optical Telecommunication Bands“, Opt. Express, 20(20), pp. 22743-22752 (2012).
[15]	E. D. Palik, “Handbook of Optical Constants of Solids III“, Academic Press, Massachusetts (1998) p529.

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APA Style

Taku Saiki, Yukio Iida. (2015). Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation. American Journal of Nano Research and Applications, 3(5), 82-88. https://doi.org/10.11648/j.nano.20150305.11

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ACS Style

Taku Saiki; Yukio Iida. Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation. Am. J. Nano Res. Appl. 2015, 3(5), 82-88. doi: 10.11648/j.nano.20150305.11

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AMA Style

Taku Saiki, Yukio Iida. Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation. Am J Nano Res Appl. 2015;3(5):82-88. doi: 10.11648/j.nano.20150305.11

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@article{10.11648/j.nano.20150305.11,
  author = {Taku Saiki and Yukio Iida},
  title = {Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation},
  journal = {American Journal of Nano Research and Applications},
  volume = {3},
  number = {5},
  pages = {82-88},
  doi = {10.11648/j.nano.20150305.11},
  url = {https://doi.org/10.11648/j.nano.20150305.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.nano.20150305.11},
  abstract = {Si oxide powder is reduced by highly repetitive pulse laser ablation in liquid, and Si nanoparticles are produced efficiently with a low cost in a short time. A Si nanopaste with highly doped Si nanoparticles was sintered by using a hot plate. We succeeded in fabricating a sintered Si nano-polycrystalline for the first time. The structure and components of the fabricated sintered Si nano-polycrystalline were investigated by SEM and EDX analysis. Furthermore, the reduced Si nanoparticles and the sintered Si nano-polycrystalline were excited by violet light and stable photoluminescence (PL), which were observed in the visible regime. The peak wavelengths of the PL were 550 nm and 560 nm. Particularly, the intensity of the observed PL of the sintered Si nano-polycrystalline was five times higher than that of the reduced Si nanoparticles powder. This result is attributed to the PL being amplified inside the sintered Si nano polycrystalline. These experiments show that because the mean diameters of the Si nanocrystals in the reduced Si nanoparticles were below 2 nm, the structure of the Si nanocrystals changed to a direct-transition type; the bandgap energy of the Si nanocrystals changed from 1.1 eV to 2.25 eV, and PL in the visible regime was generated. Moreover, the possibility of Si photonics is discussed. The sintered Si nano-polycrystalline will be applicable to light waveguides, optical switches using a free carrier effect, and light amplifiers},
 year = {2015}
}

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TY  - JOUR
T1  - Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation
AU  - Taku Saiki
AU  - Yukio Iida
Y1  - 2015/08/24
PY  - 2015
N1  - https://doi.org/10.11648/j.nano.20150305.11
DO  - 10.11648/j.nano.20150305.11
T2  - American Journal of Nano Research and Applications
JF  - American Journal of Nano Research and Applications
JO  - American Journal of Nano Research and Applications
SP  - 82
EP  - 88
PB  - Science Publishing Group
SN  - 2575-3738
UR  - https://doi.org/10.11648/j.nano.20150305.11
AB  - Si oxide powder is reduced by highly repetitive pulse laser ablation in liquid, and Si nanoparticles are produced efficiently with a low cost in a short time. A Si nanopaste with highly doped Si nanoparticles was sintered by using a hot plate. We succeeded in fabricating a sintered Si nano-polycrystalline for the first time. The structure and components of the fabricated sintered Si nano-polycrystalline were investigated by SEM and EDX analysis. Furthermore, the reduced Si nanoparticles and the sintered Si nano-polycrystalline were excited by violet light and stable photoluminescence (PL), which were observed in the visible regime. The peak wavelengths of the PL were 550 nm and 560 nm. Particularly, the intensity of the observed PL of the sintered Si nano-polycrystalline was five times higher than that of the reduced Si nanoparticles powder. This result is attributed to the PL being amplified inside the sintered Si nano polycrystalline. These experiments show that because the mean diameters of the Si nanocrystals in the reduced Si nanoparticles were below 2 nm, the structure of the Si nanocrystals changed to a direct-transition type; the bandgap energy of the Si nanocrystals changed from 1.1 eV to 2.25 eV, and PL in the visible regime was generated. Moreover, the possibility of Si photonics is discussed. The sintered Si nano-polycrystalline will be applicable to light waveguides, optical switches using a free carrier effect, and light amplifiers
VL  - 3
IS  - 5
ER  -

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Author Information

Taku Saiki

Department of Electrical and Electronic Engineering, Faculty of Engineering Science, Kansai University, Osaka, Japan
Yukio Iida

Department of Electrical and Electronic Engineering, Faculty of Engineering Science, Kansai University, Osaka, Japan

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APA Style

Taku Saiki, Yukio Iida. (2015). Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation. American Journal of Nano Research and Applications, 3(5), 82-88. https://doi.org/10.11648/j.nano.20150305.11

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ACS Style

Taku Saiki; Yukio Iida. Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation. Am. J. Nano Res. Appl. 2015, 3(5), 82-88. doi: 10.11648/j.nano.20150305.11

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AMA Style

Taku Saiki, Yukio Iida. Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation. Am J Nano Res Appl. 2015;3(5):82-88. doi: 10.11648/j.nano.20150305.11

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@article{10.11648/j.nano.20150305.11,
  author = {Taku Saiki and Yukio Iida},
  title = {Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation},
  journal = {American Journal of Nano Research and Applications},
  volume = {3},
  number = {5},
  pages = {82-88},
  doi = {10.11648/j.nano.20150305.11},
  url = {https://doi.org/10.11648/j.nano.20150305.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.nano.20150305.11},
  abstract = {Si oxide powder is reduced by highly repetitive pulse laser ablation in liquid, and Si nanoparticles are produced efficiently with a low cost in a short time. A Si nanopaste with highly doped Si nanoparticles was sintered by using a hot plate. We succeeded in fabricating a sintered Si nano-polycrystalline for the first time. The structure and components of the fabricated sintered Si nano-polycrystalline were investigated by SEM and EDX analysis. Furthermore, the reduced Si nanoparticles and the sintered Si nano-polycrystalline were excited by violet light and stable photoluminescence (PL), which were observed in the visible regime. The peak wavelengths of the PL were 550 nm and 560 nm. Particularly, the intensity of the observed PL of the sintered Si nano-polycrystalline was five times higher than that of the reduced Si nanoparticles powder. This result is attributed to the PL being amplified inside the sintered Si nano polycrystalline. These experiments show that because the mean diameters of the Si nanocrystals in the reduced Si nanoparticles were below 2 nm, the structure of the Si nanocrystals changed to a direct-transition type; the bandgap energy of the Si nanocrystals changed from 1.1 eV to 2.25 eV, and PL in the visible regime was generated. Moreover, the possibility of Si photonics is discussed. The sintered Si nano-polycrystalline will be applicable to light waveguides, optical switches using a free carrier effect, and light amplifiers},
 year = {2015}
}

Copy | Download

TY  - JOUR
T1  - Fabrication of Sintered Si Nano-polycrystalline with Reduced Si Nanoparticles and Properties of Photoluminescence in Visible Regime for Sintered Si Nano-polycrystalline by Violet Light Excitation
AU  - Taku Saiki
AU  - Yukio Iida
Y1  - 2015/08/24
PY  - 2015
N1  - https://doi.org/10.11648/j.nano.20150305.11
DO  - 10.11648/j.nano.20150305.11
T2  - American Journal of Nano Research and Applications
JF  - American Journal of Nano Research and Applications
JO  - American Journal of Nano Research and Applications
SP  - 82
EP  - 88
PB  - Science Publishing Group
SN  - 2575-3738
UR  - https://doi.org/10.11648/j.nano.20150305.11
AB  - Si oxide powder is reduced by highly repetitive pulse laser ablation in liquid, and Si nanoparticles are produced efficiently with a low cost in a short time. A Si nanopaste with highly doped Si nanoparticles was sintered by using a hot plate. We succeeded in fabricating a sintered Si nano-polycrystalline for the first time. The structure and components of the fabricated sintered Si nano-polycrystalline were investigated by SEM and EDX analysis. Furthermore, the reduced Si nanoparticles and the sintered Si nano-polycrystalline were excited by violet light and stable photoluminescence (PL), which were observed in the visible regime. The peak wavelengths of the PL were 550 nm and 560 nm. Particularly, the intensity of the observed PL of the sintered Si nano-polycrystalline was five times higher than that of the reduced Si nanoparticles powder. This result is attributed to the PL being amplified inside the sintered Si nano polycrystalline. These experiments show that because the mean diameters of the Si nanocrystals in the reduced Si nanoparticles were below 2 nm, the structure of the Si nanocrystals changed to a direct-transition type; the bandgap energy of the Si nanocrystals changed from 1.1 eV to 2.25 eV, and PL in the visible regime was generated. Moreover, the possibility of Si photonics is discussed. The sintered Si nano-polycrystalline will be applicable to light waveguides, optical switches using a free carrier effect, and light amplifiers
VL  - 3
IS  - 5
ER  -

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