PHOTOSTRICTION IN PLZT CERAMICS.

Toru Sada, Motoh Inoue, Kenji Uchino

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

It is well known that ferroelectric (non-centrosymmetric) crystals are capable of revealing ″bulk photovoltaic effect″ i. e. production of greater-than-band-gap voltages under uniform illumination. While having piezoelectricity at the same time, the ferroelectrics are considered to cause the photostrictive effect as the superposition of these two phenomena. This paper describes the photovoltaic and photostrictive effects in the (Pb, La) (Zr, Ti)O//3 (PLZT) system. The composition PLZT (3/52/48) was found to reveal the largest product value of the photovoltaic voltage and piezoelectric coefficient. The photostriction and photovoltaic voltage are strongly dependent on the preparation method such as grain size and remanent polarization even with the same composition. Using PLZT ceramics, a photodriven relay has been fabricated and a primitive relay function controllable by the optical irradiation has been developed.

Original languageEnglish (US)
Pages (from-to)545-550
Number of pages6
JournalYogyo Kyokai Shi/Journal of the Ceramic Society of Japan
Volume95
Issue number5
StatePublished - Jan 1 1987

Fingerprint

photovoltaic effect
relay
ceramics
Ferroelectric materials
Electric potential
electric potential
Photovoltaic effects
piezoelectricity
Piezoelectricity
Remanence
Chemical analysis
Energy gap
Lighting
grain size
illumination
Irradiation
preparation
Crystals
irradiation
causes

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Sada, Toru ; Inoue, Motoh ; Uchino, Kenji. / PHOTOSTRICTION IN PLZT CERAMICS. In: Yogyo Kyokai Shi/Journal of the Ceramic Society of Japan. 1987 ; Vol. 95, No. 5. pp. 545-550.
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PHOTOSTRICTION IN PLZT CERAMICS. / Sada, Toru; Inoue, Motoh; Uchino, Kenji.

In: Yogyo Kyokai Shi/Journal of the Ceramic Society of Japan, Vol. 95, No. 5, 01.01.1987, p. 545-550.

Research output: Contribution to journalArticle

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AB - It is well known that ferroelectric (non-centrosymmetric) crystals are capable of revealing ″bulk photovoltaic effect″ i. e. production of greater-than-band-gap voltages under uniform illumination. While having piezoelectricity at the same time, the ferroelectrics are considered to cause the photostrictive effect as the superposition of these two phenomena. This paper describes the photovoltaic and photostrictive effects in the (Pb, La) (Zr, Ti)O//3 (PLZT) system. The composition PLZT (3/52/48) was found to reveal the largest product value of the photovoltaic voltage and piezoelectric coefficient. The photostriction and photovoltaic voltage are strongly dependent on the preparation method such as grain size and remanent polarization even with the same composition. Using PLZT ceramics, a photodriven relay has been fabricated and a primitive relay function controllable by the optical irradiation has been developed.

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