Acetone and ethanol solid-state gas sensors based on TiO2 nanoparticles thin film deposited by matrix assisted pulsed laser evaporation

Rella, R.; Spadavecchia, Jolanda; Manera, Maria Grazia; Capone, S.; Taurino, A.; Martino, M.; Caricato, Anna Paola; Tunno, T.

doi:10.1016/j.snb.2007.04.048

Cited by 171 publications

(73 citation statements)

References 21 publications

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“…The same tendency was observed for aluminum and silicon oxy-hydroxides [26][27][28][29]. Consequently, the behavior of titanium [Ti [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] …”

Section: Resultsmentioning

confidence: 62%

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Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Barthen¹,

Millon

Aubriet³

2011

J. Am. Soc. Mass Spectrom.

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FTICR cell confirm this assessment. Tandem mass spectrometry experiments were also performed in sustained off-resonance irradiation collision-induced dissociation (SORI-CID) mode. Three fragmentation pathways were observed: (1) elimination of water molecules, (2) O 2 loss for radical anions, and (3) fission of the cluster. Density functional theory (DFT) calculations were performed to explain the experimental data.

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Section: Resultsmentioning

confidence: 62%

“…They may be used as catalysts for the photochemical degradation of hydrocarbons [1][2][3][4][5], as gas sensors [6,7], or may be associated with electronic or optoelectronic devices [3,8]. TiO 2 is a wide band-gap semiconductor with n-type charge carriers.…”

Section: Introductionmentioning

confidence: 99%

Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Barthen¹,

Millon

Aubriet³

2011

J. Am. Soc. Mass Spectrom.

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“…The first approach is called the two-step method, in which case, nanostructure preparation is the first step to the development of nanofluids. Nanostructures of sizes ranging from 1nm-100 nm are desired for nanofluids [17,130] and a wide range of nanostructures exist today, ranging from nanowires, nanorods, nanofibres, nanocylinders, nanograins to nanoparticles [98, 131,132], which can either be developed from the smallest unit of matter (known as the bottom-up method) or fractured down from bigger lumps to nano-sized particles (known as the top-down method) [133][134][135]. The most common methods of nanostructures synthesis are broadly classified into physical and chemical methods.…”

Section: Methods Of Preparation Of Nanoparticles and Nanofluidsmentioning

confidence: 99%

“…The most common methods of nanostructures synthesis are broadly classified into physical and chemical methods. Some of the physical methods are pulsed laser ablation [136][137][138], laser deposition and matrix assisted pulsed laser evaporation (MAPPLE) [130,139], and ball milling [133][134][135], while the chemical methods are chemical precipitation [140][141][142], sonoelectrochemical synthesis [143][144][145][146][147][148], spray pyrolysis [149,150], chemical vapour deposition [151][152][153] and thermal decomposition [154]. Details on other methods under these categories can be found in the past 24 publications [38,155,156].…”

Section: Methods Of Preparation Of Nanoparticles and Nanofluidsmentioning

confidence: 99%

The Viscosity of Nanofluids: A Review of the Theoretical, Empirical, and Numerical Models

Meyer

Adio

Sharifpur

et al. 2015

Heat Transfer Engineering

204

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The enhanced thermal characteristics of nanofluids have made it one of the fastest-growing research areas in the last decade. Numerous researches have shown the merits of nanofluids in heat transfer equipment. However, one of the problems is the increase in viscosity due to the suspension of nanoparticles. This viscosity increase is not desirable in the industry, especially when it involves flow, such as in heat exchanger or micro-channel applications INTRODUCTIONColloidal suspension dates back to Maxwell's study in 1873 [1]. Though the idea behind his study was vivid, the imposed problems were too enormous for profitable engineering solutions [2]. In 1995, Choi [3] came up with a pioneering idea based on Maxwell's study and suspended ultrafine particles (nanoparticles) in conventional heat transfer fluids. His invention has opened up a myriad of opportunities in research and development. Nanofluids descriptively are colloidal suspensions containing metallic (Ag, Au, Al, Cu, Ni, etc.), non-metallic (single-and multi-wall carbon nanotube (SWCNT and MWCNT), Si, Graphene, etc.), metallic oxide (Al2O3, CuO, NiO2,TiO2, etc.) and oxides of non-metals (SiO2, SiC, MgO, CaCO3, etc.) nanoparticles suspended in conventional heat transfer fluids such as water, engine oil, ethylene glycol, transformer oil, gear oil or mixture of two or more heat transfer fluids [2,3]. When compared with previous microparticle suspensions in conventional heat transfer fluids, it is a special type of fluid with numerous applications potentials because of its enhanced thermal conductivity, stability and homogeneity [3,4]. Microscale particles in suspensions lead to abrasion, clogging of flow paths, pressure drop and high pumping power requirements, therefore, its sustainability was impossible. Besides, nanofluids can reduce the pumping power in engineering equipment significantly and do not pose the problem of clogging and abrasion of equipment flow paths [5][6][7][8]. Therefore, the design and engineering of physical systems are now being tailored towards using nanofluid as working fluid.The impact of colloidal suspension cuts across the fields of science, biological science, medical, pharmaceutical and engineering. In the context of sustainable energy development and thermal management, nanofluids are becoming more and more significant as the need for efficient thermal management is of paramount importance. Moreover, the level of miniaturisation of devices today as technology advances is overwhelming. Devices such as microprocessors, microelectromechanical systems (MEMS), nanoelectromechanical systems (NEMS), microchannels and lab-on-chips come with high-density heat flux that needs quick heat removal for 3 efficient performance, stability and durability, which, from all indications, could be provided by nanofluids for now [9][10][11][12]. The following are also emerging areas of applications of nanoparticles and nanofluids: (i) they could be useful in medicine in the targeted treatment of malignant cells without damaging healthy tis...

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“…During the flight toward the substrate to be coated, the volatile matrix molecules are pumped away, so only the non-volatile solute molecules impinge on the substrate and adsorb onto its surface. Albeit great success has been achieved with MAPLE in many applications such gas sensor, [4][5][6] organic photovoltaic cell, [7][8][9] and organic light-emitting diode, 10 as far as we know, there has been no report on utilizing MAPLE for depositing the dye in DSSC. Therefore, in this work, we investigated the feasibility of using MAPLE a E-mail: sychen@ltl.iams.sinica.edu.tw 2158-3226/2016/6(8)/085011/9…”

Section: Introductionmentioning

confidence: 99%

Deposition of organic dyes for dye-sensitized solar cell by using matrix-assisted pulsed laser evaporation

Yen

Wang

et al. 2016

AIP Advances

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The deposition of various distinct organic dyes, including ruthenium complex N3, melanin nanoparticle (MNP), and porphyrin-based donor-π-acceptor dye YD2-o-C8, by using matrix-assisted pulsed laser evaporation (MAPLE) for application to dye-sensitized solar cell (DSSC) is investigated systematically. It is found that the two covalently-bonded organic molecules, i.e., MNP and YD2-o-C8, can be transferred from the frozen target to the substrate with maintained molecular integrity. In contrast, N3 disintegrates in the process, presumably due to the lower bonding strength of metal complex compared to covalent bond. With the method, DSSC using YD2-o-C8 is fabricated, and an energy conversion efficiency of 1.47% is attained. The issue of the low penetration depth of dyes deposited by MAPLE and the possible resolution to it are studied. This work demonstrates that MAPLE could be an alternative way for deposition of organic dyes for DSSC.

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Acetone and ethanol solid-state gas sensors based on TiO2 nanoparticles thin film deposited by matrix assisted pulsed laser evaporation

Cited by 171 publications

References 21 publications

Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Study of Cluster Anions Generated by Laser Ablation of Titanium Oxides: A High Resolution Approach Based on Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

The Viscosity of Nanofluids: A Review of the Theoretical, Empirical, and Numerical Models

Deposition of organic dyes for dye-sensitized solar cell by using matrix-assisted pulsed laser evaporation

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