Pyroelectricity and Induced Pyroelectric Polarization in Leaves of the Palmlike Plant Encephalartos villosus

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Science  27 May 1977:
Vol. 196, Issue 4293, pp. 985-986
DOI: 10.1126/science.196.4293.985


Quantitative pyroelectric measurements were made on the leaves of the palmlike plant Encephalartos. A pyroelectric response almost 50 times higher than the normal one could be induced by a small bias electric field, offering a means for highly increasing the efficiency of conversion of thermal to electrical energy. No evidence of ferroelectricity was found.