A silicon nanoparticle-based polymeric nano-composite material for glucose sensing

Liu, Qiang; Nayfeh, Munir H.; Yau, S.‐T.

doi:10.1016/j.jelechem.2011.03.022

Cited by 20 publications

(8 citation statements)

References 21 publications

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“…A range of investigations has been carried out to graft or modify the surface of silicon nanoparticles by using different organic compounds and alkyl chains with the aim of making SiNCs stable in different solutions. ,− Recently, nanocomposites formed by silicon nanoparticles/polymer blends have drawn much attention due to very useful properties. − Since 1977, with the discovery of polymeric organic conductors, extensive studies have been carried out to understand the physics and to incorporate them into many devices. Poly(3,4-ethylenedioxythiophene) doped by poly(4-styrenesulfonate) (PEDOT:PSS) is one of the most promising conducting polymers which has been intensively studied due to high conductivity, high visible light transmissivity, excellent stability, and very good film-forming properties .…”

Section: Introductionmentioning

confidence: 99%

Improved Optoelectronic Properties of Silicon Nanocrystals/Polymer Nanocomposites by Microplasma-Induced Liquid Chemistry

Mitra

Cook

Švrček³

et al. 2013

J. Phys. Chem. C

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We have demonstrated that three-dimensional (3D) surface engineering of silicon nanocrystals (SiNCs) by direct current microplasma processing in water with poly(3,4-ethylenedioxythiophene) doped by poly(styrenesulfonate) (PEDOT:PSS) can lead to nanocomposites with enhanced optoelectronic performance. Specifically, we have successfully shown improved photoluminescence properties of SiNCs inside water-based solution. The results also confirm that SiNCs become stable in water with potential application impact for biorelated applications. We have also shown that the microplasma processing in the presence of the polymer helps prevent the fast oxidation process over a longer period of time in comparison to the unprocessed sample. Furthermore, the assessment of transport properties confirmed the improvement of exciton dissociation after microplasma surface engineering; this can have direct implications for higher performance optoelectronic devices including solar cells.

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Section: Introductionmentioning

confidence: 99%

Improved Optoelectronic Properties of Silicon Nanocrystals/Polymer Nanocomposites by Microplasma-Induced Liquid Chemistry

Mitra

Cook

Švrček³

et al. 2013

J. Phys. Chem. C

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“…Recently, nanosilicon attracting great attention from world scientists and some properties of this matter studied theoretically and experimentally [1][2][3][4][5][6][7]. Nano Si also has a wide range of application areas as electronics materials, particularly in space electronics and nuclear technologies [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Energy transfer and defect formation processes in nano silicon under the influence of epithermal neutrons

Garibli

2019

Eurasian j. phys. funct. mater.

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The neutrons scattering and capture cross-section processes has been calculated for natural 28 Si , 29 Si , 30 Si isotopes which are main part of nanosilicon samples when irradiated for 20 hours by epithermal neutron flux. The values of energies has been determined which given to nanosilicon nuclei as a result of scattering processes in the energy intervals of investigated neutrons. The cross-sections of radiation capture process and the amount of 31 Si radioactive isotope which can be formed by by 30 Si isotope in the energy interval of epithermal neutrons, the parameters of energy supply and ionization processes has been determined by interaction between energy carried of β -particles which disseminated in evironment and silicon atoms as a result of their β -decay. The formed defects has been determined in electron structure of nanosilicon under the influence of primary and secondary electron beams. Characterized interaction processes between nanosilicon and gamma rays irradiated from radioactive isotopes in impurities up to 1% in nanosilicon which formed under the influence of neutron flux. As a result of SEM investigation, interaction between surface defects inherent to nanoscale systems and O 2 , H 2 O active components that arranged environment and increasing number of surface oxidation atoms determined under the influence of radiation from radioactive isotopes which are product of radiation capture processes when impact by neutron flux. The progression of agglomeration processes of nanosilicon particles under the influence of secondary radiation processes that caused by neutron flux has also been proved experimentally by SEM investigations. The characteristic of identification and generation processes of paramagnetic defects, that formed as a result of secondary radiation processes investigated by electron paramagnetic resonance spectroscopy method.

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“…Additionally, bound complex formation of nanoparticles with ions provide some change in energy levels that can afford interesting non-optical applications such as memory devices 4 or electrochemical sensors. [5][6][7] For instance, interactions of silicon nanoparticles with ions, i.e., complex formation, can be exploited for detection of biological molecules such as glucose, [5][6][7] or electric current generation such as biofuel cells via charge transfer mechanisms, 8,9 or patterned deposition, 10 or addressing unexplained spectral phenomena in the galaxies pertaining to interplanetary and interstellar media. [11][12][13][14][15][16] The interaction of immobilized Si nanoparticles with Er ions embedded in a silicon oxide substrate in a non-complex configuration with nanoparticle-ion interspacing of several angstroms (10 Å for example) was also found to be useful in generation of infrared radiation for fiber communication applications.…”

Section: Introductionmentioning

confidence: 99%

Complex of heavy magnetic ions and luminescent silicon nanoparticles

Hoang

Stupca

Mantey

et al. 2013

Journal of Applied Physics

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Hoang, T., Stupca, M., Mantey, K., Maximenko, Y., Elhalawany, N., Carr, C. M., Yu, H., Nayfeh, M. H., Morgan, H. (2013). Complex of heavy magnetic ions and luminescent silicon nanoparticles. Journal of Applied Physics, 114 (16), [164319]We study the optical properties of luminescent silicon nanoparticles in the presence of magnetic ions of iron or erbium under wet conditions and electric biasing. Upon the introduction of the ions under zero biasing, the brightness is enhanced with some spectral change. Under biasing including breakdown ?eld conditions, the enhancement remains stable and is maintained after recovery of the particles into nanosolid ?lms using electric spray. The ion-nanoparticle interaction is analyzed using ?rst principle atomistic calculations employing unrestricted Hartree-Fock density functional theory. The calculations yield con?gurations, which show strong binding and stability. The complexes promise diverse applications in magnetic/optical imaging, spatially programmable deposition, spin-based memories and transistors, infrared communications, ?ltration, as well as interplanetary and interstellar observation and modeling. VC 2013 AIP Publishing LLC.publishersversionPeer reviewe

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A silicon nanoparticle-based polymeric nano-composite material for glucose sensing

Cited by 20 publications

References 21 publications

Improved Optoelectronic Properties of Silicon Nanocrystals/Polymer Nanocomposites by Microplasma-Induced Liquid Chemistry

Improved Optoelectronic Properties of Silicon Nanocrystals/Polymer Nanocomposites by Microplasma-Induced Liquid Chemistry

Energy transfer and defect formation processes in nano silicon under the influence of epithermal neutrons

Complex of heavy magnetic ions and luminescent silicon nanoparticles

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