Nanosecond pulsed laser deposition of TiO2: nanostructure and morphology of deposits and plasma diagnosis

Sanz, Mikel; Walczak, Malgorzata; Oujja, M.; Cuesta, Ángel; Castillejo, Marta

doi:10.1016/j.tsf.2009.04.026

Cited by 29 publications

(25 citation statements)

References 37 publications

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“…The velocity for both materials is 9 x 10 3 m/s. This value agrees well with reported velocities of atomic species generated in UV and IR ablation plumes of semiconducting materials (Ezumi and Keitoku 1993, Klini et al 2005, Sanz et al 2009). …”

Section: Optical Emission Spectroscopysupporting

confidence: 91%

Laser ablation and deposition of wide bandgap semiconductors: plasma and nanostructure of deposits diagnosis

et al. 2011

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Nanostructured CdS and ZnS films on Si (100) substrates were obtained by nanosecond pulsed laser deposition at the wavelengths of 266 and 532 nm. The effect of laser irradiation wavelength on the surface structure and crystallinity of deposits was characterized, together with the composition, expansion dynamics and thermodynamic parameters of the ablation plume. Deposits were analyzed by environmental scanning electron microscopy, atomic force microscopy and X-ray diffraction, while in situ monitoring of the plume was carried out with spectral, temporal and spatial resolution by optical emission spectroscopy. The deposits consist of nanoparticle assembled films but ablation in the visible results in larger aggregates overimposed on the film surface.The aggregate free films grown at 266 nm on heated substrates are thicker than those grown at room temperature and in the former case they reveal a crystalline structure congruent with that of the initial target material. The observed trends are discussed in reference to the light absorption step, the plasma composition and the nucleation processes occurring on the substrate.

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Section: Optical Emission Spectroscopysupporting

confidence: 91%

Laser ablation and deposition of wide bandgap semiconductors: plasma and nanostructure of deposits diagnosis

et al. 2011

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“…Hence, in recent years, PLAL has become a successful nanomaterial fabrication tool for the formation of the novel nanostructures. 19,[21][22][23][24][25] However, compared to large investigations on fabrication of TiO 2 by laser ablation in vacuum, 7,[26][27][28][29][30][31] there were few studies on the preparation of TiO 2 nanoparticles by PLAL.…”

Section: 5mentioning

confidence: 99%

Simple Preparation of Anatase TiO₂Nanoparticles via Pulsed Laser Ablation in Liquid

Hong¹,

Lee²,

Jung³

et al. 2013

Bulletin of the Korean Chemical Society

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The physical and chemical properties of TiO 2 have been of great interest due to the potential application in photocatalytic, photovoltaic, lithium-ion battery and dye-sensitized solar cell systems.1-3 Especially, its characteristic properties in optical and electronic properties, nontoxicity, chemical inertness, and high melting temperatures have drawn extensive research on the ability of semiconductor photocatalyst to promote the photodegradation of various pollutants. 4,5Anatase, brookite, and rutile are the major crystalline structures of TiO 2 , of which rutile phase is most stable; whereas anatase and brookite phases are metastable and easily transformed to rutile phase when heated above about 600-8006,7 As demonstrated in other experimental studies, the anatase form of TiO 2 has shown much higher photoactivity than that of rutile. 3,5,8,9 In the meantime, a number of methods have been explored and developed for the synthesis of TiO 2 nanoparticles, such as hydrolysis of Ti(IV) ions, 10 hydrolysis of titanium alkoxides 11 or titanium tetrachloride 12 in gas phase, sol-gel, 13hydrothermal hydrolysis, 14 and precipitation, 15 of which many studies were devoted to the synthesis of rutile phase, while fewer investigations on the anatase phase. This naively supports that synthesis of pure anatase phase is more challenging than that of rutile. Furthermore, the major products from the above techniques are typically amorphous and require post-calcination for better crystallinity and morphology of the product, which inevitably results in the formation of larger sizes of TiO 2 nanoparticles. Therefore, it is demanding to explore a method that overcomes the problems mentioned above.In order to fabricate small-sized TiO 2 nanoparticles with good crystallinity at room temperature, we have applied a pulsed laser to ablate a Ti plate immersed in deionized water and methanol. Pulsed laser ablation in liquid (PLAL) 16 was introduced by Patil and co-workers in 1987 and has been demonstrated to be an effective, simple, and versatile method for synthesizing nanomaterials starting from an appropriate choice of solids and liquids.17-20 Because of relatively simple and clean preparation of nanoparticles using PLAL, coupled with its versatility, many different metal nanostructures providing desired functions have been fabricated. One of the main advantages of PLAL compared to other methods is that it can generate nanomaterials without the need of any catalysts or organic additives. Hence, in recent years, PLAL has become a successful nanomaterial fabrication tool for the formation of the novel nanostructures.19,21-25 However, compared to large investigations on fabrication of TiO 2 by laser ablation in vacuum, 7,26-31 there were few studies on the preparation of TiO 2 nanoparticles by PLAL.32-34 Furthermore in the previous PLAL studies, the synthesis of rutile and mixture of anatase and rutile phase was mostly employed. 34,35In the present note, we report a one-step synthesis of pure anatase TiO 2 nanoparticles by PLA of Ti pla...

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“…PLD of titania onto solid substrates like monocrystalline silicon and fused silica has already been investigated in detail [30,[36][37][38][39][40]. However, to the best of our knowledge, PLD of crystalline titania on textile substrates was not reported so far.…”

Section: Introductionmentioning

confidence: 99%

Pulsed laser deposition of anatase thin films on textile substrates

Krämer

Kunz

Müller

2015

Applied Surface Science

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Nanosecond pulsed laser deposition of TiO2: nanostructure and morphology of deposits and plasma diagnosis

Cited by 29 publications

References 37 publications

Laser ablation and deposition of wide bandgap semiconductors: plasma and nanostructure of deposits diagnosis

Laser ablation and deposition of wide bandgap semiconductors: plasma and nanostructure of deposits diagnosis

Simple Preparation of Anatase TiO₂Nanoparticles via Pulsed Laser Ablation in Liquid

Pulsed laser deposition of anatase thin films on textile substrates

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Nanosecond pulsed laser deposition of TiO2: nanostructure and morphology of deposits and plasma diagnosis

Cited by 29 publications

References 37 publications

Laser ablation and deposition of wide bandgap semiconductors: plasma and nanostructure of deposits diagnosis

Laser ablation and deposition of wide bandgap semiconductors: plasma and nanostructure of deposits diagnosis

Simple Preparation of Anatase TiO2Nanoparticles via Pulsed Laser Ablation in Liquid

Pulsed laser deposition of anatase thin films on textile substrates

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Product

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Simple Preparation of Anatase TiO₂Nanoparticles via Pulsed Laser Ablation in Liquid