Room-temperature fast deposition and characterization of nanocrystalline Bi0.4Sb1.6Te3thick films by aerosol deposition

Baba, So; Huang, Lan; Sato, Hiroshi; Funahashi, Ryoji; Akedo, Jun

doi:10.1088/1742-6596/379/1/012011

Cited by 15 publications

(19 citation statements)

References 10 publications

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“…Thus, the refinement of the grains will severely restrict the carrier transport and lead to decreased mobility values. In addition, the defects and voids act as acceptors (holes), which disappear with the application of higher loads, resulting in carrier concentration decreases . According to expression , the electrical conductivity values decrease with increasing pressure load due to the decrement of both the carrier concentration and the carrier mobility.…”

Section: Resultsmentioning

confidence: 99%

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi₂Te₃ Alloys

Madavali

Kim

Lee

et al. 2015

Int J Applied Ceramic Tech

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In this research, the effects of applied pressure load and holding time on microstructure and thermoelectric properties of p‐type Bi2Te3 + 75%Sb2Te3 alloys were studied. Besides this, the microstructural changes during the heat treatment of gas‐atomized (GA) powders were examined. The grain growth (12.5–25 μm) was observed with increasing of the holding time of the heat‐treated GA powders. The hot‐pressed bulks showed grain refinement behavior with increasing pressure load, whereas grain size was found to slightly increase with increasing holding time. The peak power factor value, 3.48 W/mK2, was obtained for the hot‐pressed sample at 420°C with pressure load of 530 MPa.

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Section: Resultsmentioning

confidence: 99%

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi₂Te₃ Alloys

Madavali

Kim

Lee

et al. 2015

Int J Applied Ceramic Tech

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“…The values of ZT reported for the co-evaporated films were in the region of 0.26-0.97 [25], [9] and comparable to those of the corresponding bulk materials. There have been fewer reports of powder-based thick film processing techniques [29], [30], [31], [32], [33], [34] such as screen printing, being used due to the tendency of alloy films to oxidise during the high temperature processing used. With the increased interest in oxidation-resistant ceramic thermoelectric materials, powder based thick film processing technologies offer a commercially attractive route for low cost manufacture.…”

Section: Thermoelectric Energy Harvestersmentioning

confidence: 99%

“…powders are suspended in air or nitrogen and directed at a surface at high speeds [32]. This approach has been used both for metallic and ceramic materials to produce films up to 2mm thick.…”

Section: E Aerosol Depositionmentioning

confidence: 99%

Integrated Powder-Based Thick Films for Thermoelectric, Pyroelectric, and Piezoelectric Energy Harvesting Devices

Dorey

2014

IEEE Sensors J.

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This is an open access version of the paper Dorey, R. A. (2014). Integrated powder-based thick films for thermoelectric, pyroelectric, and piezoelectric energy harvesting devices. IEEE Sensors Journal, 14(7), 2177 -2184 . doi: 10.1109 /JSEN.2014 Abstract-Energy harvesting devices based on piezoelectric, pyroelectric and thermoelectric materials offer an attractive solution for battery-and wire-less sensor nodes for a range of sensor applications. Current devices are typically fabricated using semi-manual approaches leading to higher costs and reduced yields as well as significant material wastage. Powder-based thick film devices have been shown to be capable of harvesting mW-levels of power while the associated printing technologies offer commercially attractive fabrication solutions. This article provides a review of examples of recent piezoelectric, pyroelectric and thermoelectric powder-based thick film energy harvester devices and outlines potential fabrication techniques, ink compositions, and ways to reduce processing temperatures that can be used to create integrated thick film energy harvesting devices. The key to the creation of such devices is the management of thermal budgets and processing environments to ensure the functional properties of the thick films are maximised.

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“…Method (ADM), was developed by Akedo et al [6]. A large panel of materials has already been deposited by ADM: metals and alloys [7][8][9][10], simple and complex ceramic oxides such as apatite [11], ferrites [12], perovskites [13][14][15][16][17][18][19], spinel [20] etc. More recently, ADM has been used for the elaboration of composite materials such as ceramic-ceramic [21,22], ceramic-metal [23], or ceramic-polymer combinations [24,25].…”

Section: Introductionmentioning

confidence: 99%

Elaboration of lead-free Na 0.5 Bi 0.5 TiO 3 –BaTiO 3 (NBT-BT) thick films by aerosol deposition method (ADM)

Isaza-Ruiz

Henon

Durand-Panteix³

et al. 2016

Ceramics International

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a b s t r a c tThick and dense ceramic films of lead-free 0.94Na 0.5 Bi 0.5 TiO 3 -0.06 BaTiO 3 (NBT-BT) composition were elaborated by aerosol deposition method (ADM) at room temperature. A powder of suitable grain size was elaborated by solid state reaction. Using this powder, two samples were elaborated by ADM respectively on glass and metallic substrates, in order to check for microstructure and electrical properties. This process allowed obtaining a thick film (3.2 mm) with dense microstructure. Measurement of electrical properties revealed a lossy dielectric behavior indicating interfacial phenomena at the electrodefilm interface. The measurement of the ferroelectric hysteresis cycle does not show any characteristics of a ferroelectric behavior, but corresponds well to the one of a lossy non-linear dielectric. The absence of ferroelectricity is probably due to the low grain size of the obtained thick film (130 nm). Further experiments are in progress in order to try to obtain ferroelectric properties.

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Room-temperature fast deposition and characterization of nanocrystalline Bi_0.4Sb_1.6Te₃thick films by aerosol deposition

Cited by 15 publications

References 10 publications

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi₂Te₃ Alloys

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi₂Te₃ Alloys

Integrated Powder-Based Thick Films for Thermoelectric, Pyroelectric, and Piezoelectric Energy Harvesting Devices

Elaboration of lead-free Na 0.5 Bi 0.5 TiO 3 –BaTiO 3 (NBT-BT) thick films by aerosol deposition method (ADM)

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Room-temperature fast deposition and characterization of nanocrystalline Bi0.4Sb1.6Te3thick films by aerosol deposition

Cited by 15 publications

References 10 publications

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi2Te3 Alloys

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi2Te3 Alloys

Integrated Powder-Based Thick Films for Thermoelectric, Pyroelectric, and Piezoelectric Energy Harvesting Devices

Elaboration of lead-free Na 0.5 Bi 0.5 TiO 3 –BaTiO 3 (NBT-BT) thick films by aerosol deposition method (ADM)

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Product

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Room-temperature fast deposition and characterization of nanocrystalline Bi_0.4Sb_1.6Te₃thick films by aerosol deposition

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi₂Te₃ Alloys

Influence of Applied Pressure Load and Holding Time on Microstructure and Thermoelectric Properties of p‐Type Bi₂Te₃ Alloys