Pyroelectric properties of ReCOB and BiBO oxyborate crystals with monoclinic symmetry

Shuai Hou, Fa Peng Yu, Shujun Zhang, Qing Ming Lu, Xian Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pyroelectric properties of oxyborate crystals with monoclinic structure, including ReCa4O(BO3)3 (ReCOB, Re: rare-earth elements) and BiB3O6 (BiBO), were investigated by charge integration method. The pyroelectric p1 of ReCOB crystals was found to be negative, being on the order of -59.3∼-65.5μC/(m 2·°C) at 30°C, while the pyroelectric p3 was determined to be positive, being around 11.6∼31.0μC/(m 2·°C). The pyroelectric coefficients p1 and p3 for ReCOB crystals were observed to decrease with increasing temperature, with variations being on the order of -10.8% to -79.1% over the test temperature range of 20∼180°C. Comparing with ReCOB crystals, larger pyroelectric coefficient (p2) was obtained for BiBO crystals, being on the order of 105.0μC/(m2·°C) at room temperature, maintaining the similar value up to 180°C. Of particular interest is that ReCOB and BiBO crystals were found to possess relative high detectivity Fd, two to three times that of commercial TGS and LiTaO3.

Original languageEnglish (US)
Title of host publicationProceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
PublisherIEEE Computer Society
ISBN (Print)9781479932894
DOIs
StatePublished - 2013
Event2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013 - Changsha, China
Duration: Oct 25 2013Oct 27 2013

Publication series

NameProceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013

Other

Other2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
CountryChina
CityChangsha
Period10/25/1310/27/13

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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