Mixed thick/thin-film thermocouples for thermoelectric microgenerators and laser power sensor

• Autorzy: Markowski P. , Prociow E. , Dziedzic A.
• Języki publikacji: EN

Abstrakty

EN

This work presents the fabrication of thermopiles with high output voltage. A series of mixed thick/thin-film thermopiles were performed - one of the arms of the thermocouples was screen-printed (PdAg- or Ag-based thick-film layers), the second was made of magnetron sputtered semiconductor (compositions based on Ge). The output parameters (thermoelectric force ET [V], internal resistance Ri [?], output electrical power Pout [W]) of the structures were characterized using a self-made automatic measurement system. The best parameters were achieved for TSG/PdAg (TSG - Ge doped by Sb and Ta) and WSG/Ag (WSG - Ge doped by Sb and W) structures. Generated output voltage per single thermocouple was about 20 mV and output electrical power - 0.55 žW, when temperature difference between hot and cold end was 100 K. Also, the influence of activation process on output parameters was investigated (structures were put into high temperature to initialize recrystallization and grain growth process). The possibilities of using of such structures as thermoelectric microgenerators or sensors were considered. TSG/PdAg-based structures were used to prepare laser power sensor. The level of generated thermoelectric force ET was proportional to the power of the laser beam under investigation. Tests of prototype structures showed that thermoelectric sensors have sufficient resolution and ensure very good repeatability of measurements.

Słowa kluczowe

EN

thick-film; thin film; thermoelectricity; microgenerator; sensor; thermocouple; thermopile

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2009
• Tom: Vol. 39, nr 4
• Strony: 681--690
• Opis fizyczny: bibliogr. 9 poz.,

Twórcy

autor

Markowski P.

autor

Prociow E.

autor

Dziedzic A.

Bibliografia

• [1] CRC Handbook of Thermoelectrics, [Ed.] D.M. Rowe, London, CRC Press, 1996.
• [2] Thermoelectrics Handbook – Macro to Nano, [Ed.] D.M. Rove, Taylor and Francis, 2006.
• [3] SMETANA W., REICHER U.R., Designing the performance of a thick-film laser power detector by means of a heat-transfer analysis using finite-element method, Sensors and Actuators A: Physical 58(3), 1997, pp. 213–218.
• [4] JEN-HAU CHENG, CHUN-KAI LIU, YU-LIN CHAO, RA-MIN TAIN, Cooling performance of silicon-based thermoelectric device on high power LED, Proceedings 24th International Conference on Thermoelectrics, 2005, pp. 53–56.
• [5] WEBER J., POTJE-KAMLOTH K., HAASE F., DETEMPLE P., VÖLKLEIN F., DOLL T., Coin-size coiled-up polymer foil thermoelectric power generator for wearable electronics, Sensors and Actuators A: Physical 132(1), 2006, pp. 325–330.
• [6] MARKOWSKI P., DZIEDZIC A., Planar and three-dimensional thick-film thermoelectric microgenerators, Microelectronics Reliability 48(6), 2008, pp. 890–896.
• [7] MARKOWSKI P., WÓJTOWICZ A., DZIEDZIC A., The thermoelectric properties of thick-film composites – preliminary results, Proceedings 29th International Conference of IMAPS – Poland 2005, Koszalin–Darłówko, September 2005, pp. 389–392.
• [8] MARKOWSKI P., PINCZAKOWSKI W., STRASZEWSKI L., DZIEDZIC A., Thick-film thermoelectric microgenerators based on nickel-, silver- and PdAg-based compositions, Proceedings 30th International Conference of ISSE, Cluj–Napoca, May 2007, pp. 223–228.
• [9] MARKOWSKI P., STRASZEWSKI L., DZIEDZIC A., Sandwich-type three-dimensional thick-film thermoelectric microgenerators, Proceedings 31st International Conference of ISSE, Budapest, May 2008, pp. 110–113.