Polymer–inorganic nano-composite thin film upconversion light emitters prepared by double-beam matrix assisted pulsed laser evaporation (DB-MAPLE) method

Darwish, Abdalla M.; Burkett, Allan; Blackwell, Ashley; Taylor, Keylantra; Sarkisov, Sergey S.; Patel, Darayas; Koplitz, Brent; Hui, David

doi:10.1016/j.compositesb.2014.08.044

Cited by 24 publications

(15 citation statements)

References 11 publications

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“…MAPLE technique [41][42][43][44][45][46][47][48][49][50][51][52] brings us a step forward to laser method by avoiding damage and photochemical decomposition of materials and it is now used for obtaining different types of thin films such as follows:…”

Section: The Limitation Of the Current Approaches And Laser Methods Pementioning

confidence: 99%

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Smart Thermoresponsive Surfaces Based on pNIPAm Coatings and Laser Method for Biological Applications

Rusen¹,

Dinca²,

Mustăciosu³

et al. 2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

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Various applications within last decades such as bacterially resistant surfaces, soft robotics, drug delivery systems, sensors and tissue engineering are poised to feature the importance of the ability to control bio-interfacial interactions. An enhanced attention is dedicated to designing smart stimuli-responsive interfaces for DNA, drug delivery, protein and cell based applications. Within this context, the thermoresponsive materials, especially poly(N-isopropylacrylamide) (pNIPAm) have been intensively used in tissue engineering applications for a controlled detachment of proteins and cells with a minimum of invasive effect on protein and cell structural conformation. The properties of smart bio-interfaces can be controlled by its composition and polymer architecture. Therefore, appropriate methods for obtaining controlled coatings are necessary. Laser methods were successfully used in the last decades for obtaining controlled organic and inorganic coatings for various types of applications, from electronics to tissue engineering. Among these, Matrix-Assisted Pulsed Laser Evaporation (MAPLE) technique bring us a step forward to other laser methods by avoiding damage and photochemical decomposition of materials. In this chapter we describe materials and approaches used for design of smart bio-interfaces aimed at controlling protein and cells behavior in vitro, focusing MAPLE method for tuning coatings characteristics in relation with biological response.

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Section: The Limitation Of the Current Approaches And Laser Methods Pementioning

confidence: 99%

“…• Polymer-inorganic nano-composite films with fluorescence properties with a potential for applications such as light emitters and chemical sensors [45];…”

Section: The Limitation Of the Current Approaches And Laser Methods Pementioning

confidence: 99%

Smart Thermoresponsive Surfaces Based on pNIPAm Coatings and Laser Method for Biological Applications

Rusen¹,

Dinca²,

Mustăciosu³

et al. 2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

View full text Add to dashboard Cite

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“…The second target (to the right) was a polymer solution frozen by circulating liquid nitrogen (LN). Accordingly, the process of polymer deposition was the matrix-assisted pulsed laser evaporation (MAPLE) [10][11][12][13]. All the …”

Section: Methodsmentioning

confidence: 99%

“…There is still no report on oxide films with nanodefects in the form of polymer nanoparticles. This chapter describes nanocomposite thin films made of AZO matrix with evenly dispersed poly (methyl methacrylate) (PMMA) nanoparticles produced by the concurrent multi-beam multitarget pulsed laser deposition of AZO and matrix-assisted pulsed laser evaporation of the polymer (MBMT-PLD/MAPLE) [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Multi-Beam Multi-Target Pulsed Laser Deposition of AZO Films with Polymer Nanoparticles for Thermoelectric Energy Harvesters

Darwish¹,

Sarkisov²,

Mele³

et al. 2017

Laser Ablation - From Fundamentals to Applications

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In comparison with metallic thermoelectric films, oxide films with artificial nanodefects have been seldom studied. And there has been no report on the incorporation of islandshaped organic nanoparticles. We describe a new approach to introduce nanometer-sized phonon scatterers in aluminum-doped ZnO (AZO) thermoelectric thin films-concurrent multi-beam multi-target-pulsed laser deposition and the matrix-assisted pulsed laser evaporation (MBMT-PLD/MAPLE). The approach was used to make nanocomposite thin films of AZO matrix with evenly dispersed poly(methyl methacrylate) (PMMA) nanoparticles. The introduction of the nanoparticles enhanced phonon scattering with consequent decrease of thermal conductivity by 20%. The electrical conductivity did not decrease after the addition of the second phase, as it would be predicted by WiedemannFranz law, but improved by 350% over pure AZO film. The thermoelectric figure of merit of the nanocomposite film became twice that of the pure AZO film. Taking advantage of room-temperature deposition, optimized AZO nanocomposite films are expected to be used in real applications, such as thin film modules deposited on flexible polymeric substrates for ubiquitous harvesting of the waste heat.

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“…Also, the proportion of the components in the film is dictated by the target and cannot be altered in the process. The improvements can be expected in the method of concurrent multi-beam and multi-target deposition using MAPLE polymer targets and inorganic PLD targets, each being concurrently ablated by laser beams of different wavelengths [55][56][57][58][59][60][61][62][63][64]. The method can be called as multibeam multi-target MAPLE and PLD or with acronym MBMT-MAPLE/PLD that is described below.…”

Section: Introductionmentioning

confidence: 99%

Concurrent Multi-Target Laser Ablation for Making Nano-Composite Films

Darwish¹,

Sarkisov²,

Patel³

2016

Applications of Laser Ablation - Thin Film Deposition, Nanomaterial Synthesis and Surface Modification

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New method of using laser ablation for film deposition that can be called as concurrent multi-beam multi-target matrix-assisted pulsed laser evaporation and pulsed laser deposition (MBMT-MAPLE/PLD) is described. Practical MBMT-MAPLE/PLD system built at Dillard University has three separate laser beams, three targets and the remotely controlled plume overlapping mechanism that provides even mixing of the target materials during their deposition on the substrate. The system accommodates MAPLE targets in the form of polymer solutions frozen with flowing liquid nitrogen. The feasibility of the method was demonstrated when it was used for making polymer nanocomposite films with two inorganic additives: upconversion fluorescent phosphor NaYF 4 :Yb 3+ , Er 3+ and aluminum-doped ZnO (AZO). Three laser beams, an infrared 1064nm beam for the MAPLE and two 532-nm beams for the PLD targets, were concurrently used in the process. The fabricated nano-composite films were characterized using Xray diffraction, scanning electron microscopy (SEM), optical fluorescent spectroscopy, and the measurement of the quantum efficiency (QE) of the upconversion fluorescence. The size of the inorganic nanoparticles varied in the range 10-200 nm. The AZO additive increased QE by 1.6 times. The conclusion was made on the feasibility of MBMT-MAPLE/PLD method for making multi-component nano-composite films for various applications.

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Polymer–inorganic nano-composite thin film upconversion light emitters prepared by double-beam matrix assisted pulsed laser evaporation (DB-MAPLE) method

Cited by 24 publications

References 11 publications

Smart Thermoresponsive Surfaces Based on pNIPAm Coatings and Laser Method for Biological Applications

Smart Thermoresponsive Surfaces Based on pNIPAm Coatings and Laser Method for Biological Applications

Multi-Beam Multi-Target Pulsed Laser Deposition of AZO Films with Polymer Nanoparticles for Thermoelectric Energy Harvesters

Concurrent Multi-Target Laser Ablation for Making Nano-Composite Films

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