Ag nanoparticles-functionalized rough silicon nanowires array and its unique response characteristics to ultrararefied NO2

Qin, Yuxiang; Liu, Diao; Wang, Zefeng; Jiang, Yunqing

doi:10.1016/j.snb.2017.11.177

Cited by 9 publications

(19 citation statements)

References 27 publications

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“…It has been noticed in a series of reports about the nanoparticles such as Ag deposited onto the SiNWs to detect NO 2 and NH 3 [150,151]. For example, Y. Qin and et al developed a novel and cost-effective process to prepare Ag-modified SiNW sensors and further suggested a resistance effect model to clarify the enhanced sensing mechanism of Ag-modified SiNWs towards NH 3 [150].…”

Section: Decoration By Metal Nanoparticlesmentioning

confidence: 99%

Silicon Nanowires for Gas Sensing: A Review

et al. 2020

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The unique electronic properties of semiconductor nanowires, in particular silicon nanowires (SiNWs), are attractive for the label-free, real-time, and sensitive detection of various gases. Therefore, over the past two decades, extensive efforts have been made to study the gas sensing function of NWs. This review article presents the recent developments related to the applications of SiNWs for gas sensing. The content begins with the two basic synthesis approaches (top-down and bottom-up) whereby the advantages and disadvantages of each approach have been discussed. Afterwards, the basic sensing mechanism of SiNWs for both resistor and field effect transistor designs have been briefly described whereby the sensitivity and selectivity to gases after different functionalization methods have been further presented. In the final words, the challenges and future opportunities of SiNWs for gas sensing have been discussed.

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Section: Decoration By Metal Nanoparticlesmentioning

confidence: 99%

Silicon Nanowires for Gas Sensing: A Review

et al. 2020

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“…Therefore, different nano-Si/metal nanocomposites (MNps) have been widely employed for rationally designing and fabricating high-performance (bio)sensors for the detection of various chemical and biological species [144]. The deposition of metal nanoparticles/nanofilms over all types of nano-Si can be implemented by the following techniques: (i) magnetron sputtering [31,51,145,146,147,148,149]; (ii) immersion, chemical, and electrochemical depositions [13,20,27,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170]; (iii) thermal evaporation [32,44,171,172,173,174,175,176,177,178,179]; and (vi) laser ablation technique/pulsed laser deposition [180,181].…”

Section: (Bio)sensors Based On Nano-silicon and Metals Nanoparticlesmentioning

confidence: 99%

“…Nowadays, nano-Si/MNps nanocomposites have been utilized for (bio)sensors based on SERS [12,20,31,32,51,145,149,150,151,152,153,154,155,165,168,173,175,176,177,178,182,183,184], optical [13,44,158,164,167,171,180], and electrical [27,146,148,156,159,160,161,162,166,169,170,172,173,179,181,185,186] responses. Among all of these approaches, SERS of MNps decorated nano-Si is extensively exploited as the most efficient spectroscopic phenomenon for high-sensitive sensing.…”

Section: (Bio)sensors Based On Nano-silicon and Metals Nanoparticlesmentioning

confidence: 99%

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Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives

Myndrul

Iatsunskyi

2019

Materials

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This review highlights the application of different types of nanosilicon (nano-Si) materials and nano-Si-based composites for (bio)sensing applications. Different detection approaches and (bio)functionalization protocols were found for certain types of transducers suitable for the detection of biological compounds and gas molecules. The importance of the immobilization process that is responsible for biosensor performance (biomolecule adsorption, surface properties, surface functionalization, etc.) along with the interaction mechanism between biomolecules and nano-Si are disclosed. Current trends in the fabrication of nano-Si-based composites, basic gas detection mechanisms, and the advantages of nano-Si/metal nanoparticles for surface enhanced Raman spectroscopy (SERS)-based detection are proposed.

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“…The doping of different particles also affected by other organic vapors which are under examinaion (Zhang et al, 2010 ; Huang et al, 2015 ; Moret et al, 2016 ; Nayef and Khudhair, 2018 ). On the basis of fluorescence quenching of pSiNPs with other atoms, pSiNPs have been used for detection of different ions and molecules (Cu +2 , NO 2 , Hg 2+ , NH 3 , Ag 2+ , and ethyl carbamate) (Xia et al, 2013 ; Luo et al, 2018 ; Qin et al, 2018a , b ). PL immunosensor was prepared by functionalization of porous silicon with Protein-A and bovine serum albumin (BSA) for detection of Ochratoxin A under UV Laser as shown in Figure 7 .…”

Section: Applications Of Silicon-based Porous Nanomaterialsmentioning

confidence: 99%

Big Potential From Silicon-Based Porous Nanomaterials: In Field of Energy Storage and Sensors

et al. 2018

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Silicon nanoparticles (SiNPs) are the promising materials in the various applications due to their unique properties like large surface area, biocompatibility, stability, excellent optical and electrical properties. Surface, optical and electrical properties are highly dependent on particle size, doping of different materials and so on. Porous structures in silicon nanomaterials not only improve the specific surface area, adsorption, and photoluminescence efficiency but also provide numbers of voids as well as the high surface to volume ratio and enhance the adsorption ability. In this review, we focus on the significance of porous silicon/mesoporous silicon nanoparticles (pSiNPs/mSiNPs) in the applications of energy storage, sensors and bioscience. Silicon as anode material in the lithium-ion batteries (LIBs) faces a huge change in volume during charging/discharging which leads to cracking, electrical contact loss and unstable solid electrolyte interphase. To overcome challenges of Si anode in the LIBs, mSiNPs are the promising candidates with different structures and coating of different materials to enhance electrochemical properties. On the basis of optical properties with tunable wavelength, pSiNPs are catching good results in biosensors and gas sensors. The mSiNPs with different structures and modified surfaces are playing an important role in the detection of biomarkers, drug delivery and diagnosis of cancer and tumors.

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Ag nanoparticles-functionalized rough silicon nanowires array and its unique response characteristics to ultrararefied NO2

Cited by 9 publications

References 27 publications

Silicon Nanowires for Gas Sensing: A Review

Silicon Nanowires for Gas Sensing: A Review

Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives

Big Potential From Silicon-Based Porous Nanomaterials: In Field of Energy Storage and Sensors

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