Annular screen printed thermoelectric generators for ultra-low-power sensor applications

Gima, Zachary T.; Gururangan, K; Wright, Paul K.

doi:10.1088/1742-6596/773/1/012115

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…Various methods are used for the fabrication of modern thermoelectric microsensors (e.g., temperature [12,13], heat flux [14,15], thermal insolation [15,16,17], laser power [1,18,19], Seebeck nanoantennas for solar energy harvesting [20] or calorimeters [21]) and microgenerators [1,2,3,4,5,6,7,10,22,23,24,25,26,27]—classical semiconductor technology and silicon micromachining [1], volume micromachining [1,5,6,9,25] (where, for example, vapor phase soldering is used to improve solder joint quality and reliability of the various microgenerator parts [28]), plasma spraying and laser patterning [29,30], thin-film deposition (evaporation, magnetron sputtering, electrochemical deposition) [3,8,24,25,31], thick-film technology (planar, 3D, on flexible substrates, alumina or LTCC ones) [2,4,6,7,10,11,12,13,22,26,32,33,34,35]. …”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Mixed Thick-/Thin Film Microgenerators Based on Constantan/Silver

2018

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This paper describes the design, manufacturing and characterization of newly developed mixed thick-/thin film thermoelectric microgenerators based on magnetron sputtered constantan (copper-nickel alloy) and screen-printed silver layers. The thermoelectric microgenerator consists of sixteen thermocouples made on a 34.2 × 27.5 × 0.25 mm3 alumina substrate. One of thermocouple arms was made of magnetron-sputtered constantan (Cu-Ni alloy), the second was a Ag-based screen-printed film. The length of each thermocouple arm was equal to 27 mm, and their width 0.3 mm. The distance between the arms was equal to 0.3 mm. In the first step, a pattern mask with thermocouples was designed and fabricated. Then, a constantan layer was magnetron sputtered over the whole substrate, and a photolithography process was used to prepare the first thermocouple arms. The second arms were screen-printed onto the substrate using a low-temperature silver paste (Heraeus C8829A or ElectroScience Laboratories ESL 599-E). To avoid oxidation of constantan, they were fired in a belt furnace in a nitrogen atmosphere at 550/450 °C peak firing temperature. Thermoelectric and electrical measurements were performed using the self-made measuring system. Two pyrometers included into the system were used for temperature measurement of hot and cold junctions. The estimated Seebeck coefficient, α was from the range 35 − 41 µV/K, whereas the total internal resistances R were between 250 and 3200 ohms, depending on magnetron sputtering time and kind of silver ink (the resistance of a single thermocouple was between 15.5 and 200 ohms).

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Section: Introductionmentioning

confidence: 99%

Thermoelectric Mixed Thick-/Thin Film Microgenerators Based on Constantan/Silver

2018

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A Hybrid Harvesting Method for Multiple Marine Renewable Energy Sources Based on Microthermoelectric Generator and Triboelectric Nanogenerator

Ma,

Liu,

Wang

et al. 2024

Adv Eng Mater

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Harvesting wind and solar energy in marine environments to power marine sensors has become a hot research topic. Herein, a marine hybrid energy gathering method based on codoped microthermoelectric generator (MTEG) and charge‐enhanced triboelectric nanogenerator (TENG) is proposed. A prototype based on this method is designed. It consists of an MTEG unit made from codoped Bi2Te3‐based thermoelectric materials and a TENG unit equipped with a charge density enhancement circuit. This prototype can simultaneously harvest solar energy and wind energy in marine environments to power marine sensors. The prototype can generate a voltage output of 72 V and a power output of 90.5 μW under experimental conditions featuring a wind velocity of 5 m s−1 and a temperature difference of 50 K. This results in a harvesting energy density of 9 W m−3. Based on experiments, the feasibility of the hybrid energy gathering method presented herein is verified, offering a new approach for powering marine sensors.

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An analytical model to evaluate influence of negative Poisson’s ratio architecture on fatigue life and energy conversion performance of wearable thermoelectric generator

Cui

Wang

et al. 2022

International Journal of Solids and Structures

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Annular screen printed thermoelectric generators for ultra-low-power sensor applications

Cited by 5 publications

References 8 publications

Thermoelectric Mixed Thick-/Thin Film Microgenerators Based on Constantan/Silver

Thermoelectric Mixed Thick-/Thin Film Microgenerators Based on Constantan/Silver

A Hybrid Harvesting Method for Multiple Marine Renewable Energy Sources Based on Microthermoelectric Generator and Triboelectric Nanogenerator

An analytical model to evaluate influence of negative Poisson’s ratio architecture on fatigue life and energy conversion performance of wearable thermoelectric generator

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