Nonlinear pyroelectric energy harvesting from relaxor single crystals

• Published in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control Vol. 56; no. 4; pp. 693 - 699
• Main Authors: Khodayari, A., Pruvost, S., Sebald, G., Guyomar, D., Mohammadi, S.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Boundary conditions; Carnot cycle; Ceramics; Computer-Aided Design; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Crystallization; Crystals; Dielectrics, piezoelectrics, and ferroelectrics and their properties; Electric fields; Electric Power Supplies; Electrochemistry - instrumentation; Energy harvesting; Energy Transfer; Energy use; Equipment Design; Equipment Failure Analysis; Exact sciences and technology; Ferroelectric materials; Ferroelectricity and antiferroelectricity; General equipment and techniques; Harvesting; Heating; Hot Temperature; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Mechanical factors; Micro-Electrical-Mechanical Systems - instrumentation; Nonlinear Dynamics; Nonlinearity; Phase transformations; Phase transitions and curie point; Physics; Polarization; Pyroelectricity; Reproducibility of Results; Sensitivity and Specificity; Single crystals; Temperature; Thermodynamics; Transducers; Transistors; Ferroelectric transitions; Monocrystals; Phase transformations; Energy recovery; Thermodynamic cycles; Pyroelectricity; Relaxor; Non linear effect; Experimental study
• ISSN: 0885-3010; 1525-8955
• DOI: 10.1109/TUFFC.2009.1092

Energy harvesting from temperature variations in a Pb(Zn 1/3 Nb 2/3 ) 0.955 Ti 0.045 O 3 single crystal was studied and evaluated using the Ericsson thermodynamic cycle. The efficiency of this cycle related to Carnot cycle is 100 times higher than direct pyroelectric energy harvesting, and it can be as high as 5.5% for a 10degC temperature variation and 2 kV/mm electric field. The amount of harvested energy for a 60degC temperature variation and 2 kV/mm electric field is 242.7 mJmiddotcm -3 . The influence of ferroelectric phase transitions on the energy harvesting performance is discussed and illustrated with experimental results.