Synthesis of the ‘Carbon Nanotubes-porous Silicon’ Hybrid Material for Gas Sensors

Kan, V. E.; Болотов, В. В.; Ivlev, К. Е.; Knyazev, E. V.; Roslikov, V. E.

doi:10.1016/j.proeng.2016.07.677

Cited by 11 publications

(3 citation statements)

References 3 publications

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“…The PSi layer was formed by using the photo-electrochemical etching (PEE) technique [40][41][42][43][44].…”

Section: 1) Preparation Of As-formed Psimentioning

confidence: 99%

New approach of creation and modifying the characteristics of AuNPs/MWCNT/PSi hybrid structures

Ali,

Alwan,

Jabbar

2023

Preprint

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In this paper, a new approach is presented on modifying the properties of hybrid structures of gold nanoparticles (AuNPs) and multi wall carbon nanotubes (MWCNT); deposited on morphologically controlled porous silicon (PSi) surface. The PSi layer was prepared by Photo-electrochemical etching using a current density between 15 to 30mA/cm2. The AuNPs/ MWCNT was decorated on a PSi surface by simple ion reduction from aqueous solutions of gold salt (HAuCl4) at 5\(\times\)10−2 M, 10− 2 M, 10− 3 M, and 10− 4 M concentrations. Structural, morphological and optical characterizations of (AuNPs/MWCNT/PSi) hybrid structure were analyzed with respect of the PSi layer morphology. The obtained results showed a possibility of effectively controlling the hybrid structures morphology, the AuNPs size and the surface area by controlling the pores’ diameters. The deposition of the MWCNT and AuNPs on the wall and pore may enhance the specific surface area of the hybrid structure. Moreover, the decrease of the concentration of the gold salt aqueous solution led a significant decrease of the AuNPs sizes, and this added another means to modify the hybrid structures.

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“…The PSi layer was formed by using the photo-electrochemical etching (PEE) technique [40][41][42][43][44].…”

Section: 1) Preparation Of As-formed Psimentioning

confidence: 99%

New approach of creation and modifying the characteristics of AuNPs/MWCNT/PSi hybrid structures

Ali,

Alwan,

Jabbar

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The PSi layer was formed by using the photo-electrochemical etching (PEE) technique [40][41][42][43][44]. The etching cell consisted of two identical Te on cylinders; the upper one contained a cylindrical cavity housing the etching solution, while the lower one was solid shaft.…”

Section: 1) Preparation Of As-formed Psimentioning

confidence: 99%

New approach of creation and modifying the characteristics of AgNPs/MWCNT/PSi hybrid structures

Ali,

Alwan,

Jabbar

2023

Preprint

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In this paper presents a new approach in modifying the properties of hybrid structures of silver nanoparticles (AgNPs) and multi wall carbon nanotubes (MWCNT); deposited on morphologically controlled porous silicon (PSi) surface. The PSi layer was prepared by Photo-electrochemical etching technique using a current density between 15 to 30mA/cm2. The AgNPs/ MWCNT was decorated on a PSi surface by a simple ion reduction from aqueous solutions of silver salt (AgNO3) at 5X10−2 M, 10− 2 M, 10− 3 M, and 10− 4 M concentrations. Structural, morphological and optical characterizations of (AgNPs/MWCNT/PSi) hybrid structure were analyzed with respect of the PSi layer morphology. The obtained results showed that a possibility of effectively controlling the hybrid structures morphology, the AgNPs size and the surface area by controlling the pores’ diameters. The deposition of the MWCNT and AgNPs on the wall and pore may enhance the specific surface area of the hybrid structure. Moreover, the decrease in the concentration of the silver salt aqueous solution can led to a significant decrease in the AgNPs sizes, and this can added another means in modifying the hybrid structures.

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“…Studies on the incorporation of carbon-based materials, such as graphene oxide (GO) − and carbon nanotubes (CNTs), ,, into different PSi nanostructures have shown interesting optical properties of the resulting hybrids. For example, GO/PSi hybrid systems were found to exhibit significant PL enhancement and were therefore suggested as potentially suitable transducers for biosensing applications .…”

Section: Psi As a Host Matrixmentioning

confidence: 99%

Porous Silicon-Based Photonic Biosensors: Current Status and Emerging Applications

et al. 2018

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Synthesis of the ‘Carbon Nanotubes-porous Silicon’ Hybrid Material for Gas Sensors

Cited by 11 publications

References 3 publications

New approach of creation and modifying the characteristics of AuNPs/MWCNT/PSi hybrid structures

New approach of creation and modifying the characteristics of AuNPs/MWCNT/PSi hybrid structures

New approach of creation and modifying the characteristics of AgNPs/MWCNT/PSi hybrid structures

Porous Silicon-Based Photonic Biosensors: Current Status and Emerging Applications

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