A Photo-Thermoelectric Twist to Wireless Energy Transfer: Radial Flexible Thermoelectric Device Powered by a High-Power Laser Beam

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Maia, M (Author) Other; Pires, AL (Author) Other; Rocha, M (Author) Other; Ferreira Teixeira, S (Author) Other; Robalinho, P (Author) Other; Frazao, O (Author) FCUP; Furtado, C (Author) Other; Califórnia, A (Author) Other; Machado, V (Author) Other; Bogas, S (Author) Other; Ferreira, C (Author) Other; Machado, J (Author) Other; Sousa, L (Author) Other; Luis, UG (Author) Other; San Juan, AMG (Author) Other; Crespo, PO (Author) Other; Medina, FN (Author) Other; Sande, CU (Author) Other; Marino, AC (Author) Other; González, GR (Author) Other; Pereira, AT (Author) Other; Agelet, FA (Author) Other; Jamier, R (Author) Other; Roy, P (Author) Other; Leconte, B (Author) Other; Auguste, JL (Author) Other; pereira, a. m. (Author) FCUP

Journal

Title: Advanced Materials Technologies

Vol. 8

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 1 Citation

Other information

Authenticus ID: P-00Y-M7P

DOI: 10.1002/admt.202202104

Abstract (EN): Systems for wireless energy transmission (WET) are gaining prominence nowadays. This work presents a WET system based on the photo-thermoelectric effect. With an incident laser beam at lambda = 1450 nm, a temperature gradient is generated in the radial flexible thermoelectric (TE) device, with a carbon-based light collector in its center to enhance the photoheating. The three-part prototype presents a unique approach by using a radial TE device with one simple manufacturing process - screen-printing. A TE ink with a polymeric matrix of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate and doped-Poly(vinyl alcohol) with Sb-Bi-Te microparticles is developed (S similar to 33 mu VK-1 and s similar to 10.31 Sm-1), presenting mechanical and electrical stability. Regarding the device, a full electrical analysis is performed, and the influence of the light collector is investigated using thermal tests, spectrophotometry, and numerical simulations. A maximum output voltage (Vout) of similar to 16 mV and maximum power density of similar to 25 mu Wm(-2) are achieved with Plaser = 2 W. Moreover, the device's viability under extreme conditions is explored. At T similar to 180 K, a 25% increase in Vout compared to room-temperature conditions is achieved, and at low pressures (similar to 10(-6) Torr), an increase of 230% is obtained. Overall, this prototype allows the supply of energy at long distances and remote places, especially for space exploration.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13