Photoconducting Properties in Oxygen-Deficient Bi4Ti3O12

Masaru Tada; Minoru Osada; Masato Kakihana; Yuji Noguchi; Masaru Miyayama

doi:10.4028/www.scientific.net/KEM.301.7

Paper Titles

Giant Polarization Properties of Ba-Based Bismuth Layer-Structured Ferroelectrics
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Photoconducting Properties in Oxygen-Deficient Bi₄Ti₃O₁₂
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Electric Properties of Sr_1-xBi_2+xTa_2-yNb_yO₉ Ceramics
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Electrical and Optical Properties of Potassium Niobate Grown by Vertical Bridgman Method
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Processing and Electrical Properties of KNbO₃ Ferroelectric Dense Ceramics Added with Small Amount of Bi₂O₃ and MnCO₃
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Enhanced Piezoelectric Properties of Barium Titanate Single Crystals by Domain Engineering
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Size Effect of Dielectric Properties for Barium Titanate Particles and Its Model
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Raman Piezo-Spectroscopic Investigation of Microscopic Residual Stresses in Ni-MLCC Devices
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Fabrication of Flat PZT Cantilevers through MEMS Technologies and Application to Optical MEMS
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 301Photoconducting Properties in Oxygen-Deficient...

Photoconducting Properties in Oxygen-Deficient Bi₄Ti₃O₁₂

Abstract:

We investigated the influence of photoexcited nonequilibrium electrons in Bi4Ti3O12-d which contains a high density of oxygen vacancies. As increasing oxygen deficiency, the photocurrent undergoes a rapid enhancement, accompanied by a remarkable change of kinetics. In heavily oxygen deficient Bi4Ti3O12-d (d=0.45), we observed dispersive photoconductivity, a behavior resembles with persistent photoconductivity phenomena in some perovskites. We argue that oxygen vacancies acting as trapping centers for electrons are linked to dispersive diffusion in the perovskite blocks, which control carrier recombination.

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Key Engineering Materials (Volume 301)

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7-10

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https://doi.org/10.4028/www.scientific.net/KEM.301.7

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Online since:

January 2006

Authors:

Masaru Tada, Minoru Osada, Masato Kakihana, Yuji Noguchi, Masaru Miyayama

Keywords:

Bi₄Ti₃O_12-d, Oxygen Deficiency, Persistent Photoconductivity, Photoconductivity

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