Synthesis of silicon quantum dots using chitosan as a novel reductor agent

P. A. Hemández-Abril; J. L. Iriqui-Razcón; E. León-Sarabia; S. D. Leal-Soto; M. E. Álvarez-Ramos; D. Berman-Mendoza; H. J. Higuera-Valenzuela

doi:10.31349/RevMexFis.67.249

Synthesis of silicon quantum dots using chitosan as a novel reductor agent

P. A. Hemández-Abril, J. L. Iriqui-Razcón, E. León-Sarabia, S. D. Leal-Soto, M. E. Álvarez-Ramos, D. Berman-Mendoza, H. J. Higuera-Valenzuela^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

In the present paper we report a novel synthesis method of silicon quantum dots (SiQDs) using 3-Aminopropyltriethoxysilane (APTES) as silicon precursor and low molecular weight chitosan (CS) as reducing agent. The obtained SiQDs have a hydrodynamic diameter of 2.3 nm, water dispersible, presents blue emission band at 434.5 nm (2.85 eV) with a Commission Internationale de l’Éclairage 1931 (CIE1931) chromaticity coordinates (x = 0.1665, y = 0.1222), the experimental absorbance of the SiQDS was measured and the band gap (Eg) was estimated through PerkinElmer’s method, for which the obtained value was 3.1 eV and a positive ζ-potential of + 35 mV, resulting in photonics, microelectronics, and biotechnological potential applications.

Original language	English
Pages (from-to)	249-254
Number of pages	6
Journal	Revista Mexicana de Fisica
Volume	67
Issue number	2
DOIs	https://doi.org/10.31349/RevMexFis.67.249
State	Published - 2021

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© 2021. All Rights Reserved.

Keywords

Silicon quantum dots
chitosan
eco-friendly synthesis

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title = "Synthesis of silicon quantum dots using chitosan as a novel reductor agent",

abstract = "In the present paper we report a novel synthesis method of silicon quantum dots (SiQDs) using 3-Aminopropyltriethoxysilane (APTES) as silicon precursor and low molecular weight chitosan (CS) as reducing agent. The obtained SiQDs have a hydrodynamic diameter of 2.3 nm, water dispersible, presents blue emission band at 434.5 nm (2.85 eV) with a Commission Internationale de l{\textquoteright}{\'E}clairage 1931 (CIE1931) chromaticity coordinates (x = 0.1665, y = 0.1222), the experimental absorbance of the SiQDS was measured and the band gap (Eg) was estimated through PerkinElmer{\textquoteright}s method, for which the obtained value was 3.1 eV and a positive ζ-potential of + 35 mV, resulting in photonics, microelectronics, and biotechnological potential applications.",

keywords = "Silicon quantum dots, chitosan, eco-friendly synthesis",

author = "Hem{\'a}ndez-Abril, {P. A.} and Iriqui-Razc{\'o}n, {J. L.} and E. Le{\'o}n-Sarabia and Leal-Soto, {S. D.} and {\'A}lvarez-Ramos, {M. E.} and D. Berman-Mendoza and Higuera-Valenzuela, {H. J.}",

year = "2021",

doi = "10.31349/RevMexFis.67.249",

language = "Ingl{\'e}s",

volume = "67",

pages = "249--254",

journal = "Revista Mexicana de Fisica",

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AU - Hemández-Abril, P. A.

AU - Iriqui-Razcón, J. L.

AU - León-Sarabia, E.

AU - Leal-Soto, S. D.

AU - Álvarez-Ramos, M. E.

AU - Berman-Mendoza, D.

AU - Higuera-Valenzuela, H. J.

PY - 2021

Y1 - 2021

N2 - In the present paper we report a novel synthesis method of silicon quantum dots (SiQDs) using 3-Aminopropyltriethoxysilane (APTES) as silicon precursor and low molecular weight chitosan (CS) as reducing agent. The obtained SiQDs have a hydrodynamic diameter of 2.3 nm, water dispersible, presents blue emission band at 434.5 nm (2.85 eV) with a Commission Internationale de l’Éclairage 1931 (CIE1931) chromaticity coordinates (x = 0.1665, y = 0.1222), the experimental absorbance of the SiQDS was measured and the band gap (Eg) was estimated through PerkinElmer’s method, for which the obtained value was 3.1 eV and a positive ζ-potential of + 35 mV, resulting in photonics, microelectronics, and biotechnological potential applications.

AB - In the present paper we report a novel synthesis method of silicon quantum dots (SiQDs) using 3-Aminopropyltriethoxysilane (APTES) as silicon precursor and low molecular weight chitosan (CS) as reducing agent. The obtained SiQDs have a hydrodynamic diameter of 2.3 nm, water dispersible, presents blue emission band at 434.5 nm (2.85 eV) with a Commission Internationale de l’Éclairage 1931 (CIE1931) chromaticity coordinates (x = 0.1665, y = 0.1222), the experimental absorbance of the SiQDS was measured and the band gap (Eg) was estimated through PerkinElmer’s method, for which the obtained value was 3.1 eV and a positive ζ-potential of + 35 mV, resulting in photonics, microelectronics, and biotechnological potential applications.

KW - Silicon quantum dots

KW - chitosan

KW - eco-friendly synthesis

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U2 - 10.31349/RevMexFis.67.249

DO - 10.31349/RevMexFis.67.249

M3 - Artículo

AN - SCOPUS:85103102470

SN - 0035-001X

VL - 67

SP - 249

EP - 254

JO - Revista Mexicana de Fisica

JF - Revista Mexicana de Fisica

IS - 2

ER -

Synthesis of silicon quantum dots using chitosan as a novel reductor agent

Abstract

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Keywords

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