Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139700
Title: Strong electro-optically active Ni-substituted Pb(Zr0.35Ti0.65)O3 thin films : toward integrated active and durable photonic devices
Authors: Zhu, Minmin
Du, Zehui
Chng, Soon Siang
Tsang, Siu Hon
Teo, Edwin Hang Tong
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: Zhu, M., Du, Z., Chng, S. S., Tsang, S. H., & Teo, E. H. T. (2018). Strong electro-optically active Ni-substituted Pb(Zr0.35Ti0.65)O3 thin films : toward integrated active and durable photonic devices. Journal of Materials Chemistry C, 6(47), 12919-12927. doi:10.1039/C8TC04576C
Journal: Journal of Materials Chemistry C
Abstract: Ferroelectric materials for precise control of light from lasers to optical communications have sparked great interest owing to their large electro-optic (EO) coefficients, low propagation loss, and fast switching time. Here, we report the deposition of highly oriented Ni-doped lead zirconate titanate (PZT) thin films on glass substrates as a novel way to seamlessly connect the electrical, optical, and magnetic domain. Small dielectric dispersion, low dielectric loss, and a large dielectric constant ranging from 102 Hz to 106 Hz were observed at a Ni content of 0.5 mol%. These films show well-saturated ferroelectric hysteresis with a large spontaneous polarization (>30 μC cm−2) and a high Curie temperature (>350 °C). In addition, optical measurements indicate a large refractive index (∼2.43), a low propagation loss (∼4.14 dB cm−1), a fast response time (4.02 μs), and an effective EO coefficient (167.7 pm V−1), which are five times larger than those of the current standard material for EO devices (LiNbO3). More importantly, such films can work well up to 250 °C and retain above 80% of the EO performance at 104 Hz. Finally, the substitution of Ni2+ at the Ti4+ site shows distinct magnetic behaviors. The integration of EO active films could pave the way for future power-efficient, ultrafast switches, and compact integrated nanophotonic and magneto-optic devices.
URI: https://hdl.handle.net/10356/139700
ISSN: 2050-7526
DOI: 10.1039/C8TC04576C
Rights: © 2018 Royal Society of Chemistry. All rights reserved. This paper was published in Journal of Materials Chemistry C and is made available with permission of Royal Society of Chemistry.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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