LiNbO<sub>3</sub>:Pr<sup>3+</sup>: A Multipiezo Material with Simultaneous Piezoelectricity and Sensitive Piezoluminescence

Tu, Dong; 徐, 超男; Yoshida, Akihito; Fujihala, Masayoshi; Hirotsu, Jou; 鄭, 旭光

doi:10.1002/adma.201606914

Cited by 196 publications

(151 citation statements)

References 23 publications

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“…In terms of the selection of oxide dielectric materials, LiNbO 3 (LNO) has attracted great research interest in the past two decades, because of its multifunctional properties including ferroelectric, piezoelectric, pyroelectric, electro‐optics, acousto‐optical, birefringence, and nonlinear optical properties . LNO also presents enormous potentials in optical devices, such as electro‐optical and acousto‐optical modulators, actuators, second‐harmonic generators, and waveguides .…”

Section: Introductionmentioning

confidence: 99%

Tailorable Optical Response of Au–LiNbO₃ Hybrid Metamaterial Thin Films for Optical Waveguide Applications

Huang

Jin

Misra

et al. 2018

Advanced Optical Materials

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range of optical functions. [1][2][3][4] Enormous developments in recent years on metamaterials, photonic and plasmonic nanostructures have demonstrated novel optical functionalities such as negative refractive index, large positive refractive index, high harmonic generations, and enhanced optical nonlinearities. [5][6][7][8][9] These novel properties lead to promising device demonstrations including superlenses, biosensors, subwavelength imaging, nanolasers, waveguides, etc., which are all important optical components for future photonic integrated circuits. [5][6][7][8][9] To integrate all the photonic structures and functionalities effectively, hybrid materials in a thin film fashion with versatile optical properties and easy on-chip device integration are very much needed.Hybrid materials consisting of metals and dielectric oxides as metamaterials have presented enormous potentials in achieving novel optical properties for the proposed optical components. In particular, gold (Au)-based hybrid materials have been widely explored for the applications in nanoscale photonic structures, such as nanophotonic switch, molecular trapping and detection, wavelength selective components, and nanophotonic waveguide. [10][11][12][13] Currently, most of the Au-based hybrid materials are fabricated by "top-down" methods, where the Au nanoparticles (NPs) are deposited on top of the substrates and then followed by a set of lithography and patterning processes using direct laser writing, e-beam lithography, or focused ion beam methods. [14][15][16] Another approach is by "bottom-up" templated-assisted electroplating methods. [6,17,18] However, both techniques involve multiple steps and tedious lithography and patterning process for largescale process. Thus, the research efforts in achieving nanoscale Au-based hybrid material systems remain as a focus.In terms of the selection of oxide dielectric materials, LiNbO 3 (LNO) has attracted great research interest in the past two decades, because of its multifunctional properties including ferroelectric, piezoelectric, pyroelectric, electro-optics, acousto-optical, birefringence, and nonlinear optical properties. [19][20][21][22][23][24][25][26][27][28] LNO also presents enormous potentials in optical devices, such as electro-optical and acousto-optical modulators, Photonic integrated circuits require various optical materials with versatile optical properties and easy on-chip device integration. To address such needs, a well-designed nanoscale metal-oxide metamaterial, that is, plasmonic Au nanoparticles embedded in nonlinear LiNbO 3 (LNO) matrix, is demonstrated with tailorable optical response. Specifically, epitaxial and single-domain LNO thin films with tailored Au nanoparticle morphologies (i.e., various nanoparticle sizes and densities), are grown by a pulsed laser deposition method. The optical measurement presents obvious surface plasmon resonance and dramatically varied complex dielectric function because of the embedded Au nanoparticles, and its response can be well tailore...

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Section: Introductionmentioning

confidence: 99%

Tailorable Optical Response of Au–LiNbO₃ Hybrid Metamaterial Thin Films for Optical Waveguide Applications

Huang

Jin

Misra

et al. 2018

Advanced Optical Materials

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“…Mater. [203] They coated the material over the surface of an aluminum alloy plate, and applied the tensile strain onto the plate. 2019, 4, 1800626 leading groups in this field, developed SrAl 2 O 4 :Eu piezoluminescence material embedded in an epoxy resin (a polymeric system), and found that this resin can be used for a nondestructive evaluation method for detecting a crack produced in metals.…”

Section: Wwwadvmattechnoldementioning

confidence: 99%

“…[202] Furthermore, in 2017, the group presented an efficient, thresholdless red-emitting piezoluminescence system where Pr 3 + was doped into the well-known piezoelectric matrix, LiNbO 3 , and demonstrated the stress-sensing performance of this system for practical use in industry. [203] They coated the material over the surface of an aluminum alloy plate, and applied the tensile strain onto the plate. As a result, this material repeatedly exhibited continuous mechanoluminescence with the strain change, and the luminescence intensity was tuned even with very low strain (≈1 × 10 −4 % strain).…”

Section: Wwwadvmattechnoldementioning

confidence: 99%

Flexible Multifunctional Sensors for Wearable and Robotic Applications

Xie

Hisano

Zhu

et al. 2019

Adv Materials Technologies

237

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This review provides an overview of the current state‐of‐the‐art of the emerging field of flexible multifunctional sensors for wearable and robotic applications. In these application sectors, there is a demand for high sensitivity, accuracy, reproducibility, mechanical flexibility, and low cost. The ability to empower robots and future electronic skin (e‐skin) with high resolution, high sensitivity, and rapid response sensing capabilities is of interest to a broad range of applications including wearable healthcare devices, biomedical prosthesis, and human–machine interacting robots such as service robots for the elderly and electronic skin to provide a range of diagnostic and monitoring capabilities. A range of sensory mechanisms is examined including piezoelectric, pyroelectric, piezoresistive, and there is particular emphasis on hybrid sensors that provide multifunctional sensing capability. As an alternative to the physical sensors described above, optical sensors have the potential to be used as a robot or e‐skin; this includes sensory color changes using photonic crystals, liquid crystals, and mechanochromic effects. Potential future areas of research are discussed and the challenge for these exciting materials is to enhance their integration into wearables and robotic applications.

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“…For the paint film sensor, the elastic module is ≈ 1 GPa, and according to Hooke's law, a strain sensitivity of 1 µST is equivalent to a stress sensitivity of 1 kPa and it means that this paint film would be suitable as an excellent microforce sensor for piconewton‐scale precision tests (at a 1 × 1 µm area). This would greatly improve the dynamic range and accuracy of ML detection, particularly beneficial to the development of bioimaging with single‐cell resolution, and the sensing and control in microrobotic cell manipulation . It should be noted that all the measurements for quantitative evaluations are carried out under the standardized condition (i.e., the irradiation and waiting times of 60 and 300 s, respectively) explained in detail in the Experimental Section.…”

Section: Scalable Elasticoluminescent Strain Sensormentioning

confidence: 99%

Scalable Elasticoluminescent Strain Sensor for Precise Dynamic Stress Imaging and Onsite Infrastructure Diagnosis

Liu

Yoshida

et al. 2018

Adv Materials Technologies

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structures attracted world-wide attention in order to ensure effective maintenance and avoid recurrence of such severe disasters. [1][2][3] In December 2017, a serious incident happened at a Shinkansen bullet train of Japan due to anomalous load caused fatigue cracks and rupture in an undercarriage, [4] and this sudden incident further enhanced the urgent necessity to predict the fracture (damage) of infrastructures. Since conventional magnetic particle testing (MT), penetrant testing (PT), and ultrasonic testing (UT) methods are difficult for precise largescale infrastructure diagnosis, many techniques were proposed on this topic in recent years, such as sensing techniques of electrical resistance or capacitive MEMS strain sensors and piezoelectric sensors were proposed for precise strain or anomaly detection, but these methods still had limitations for strain imaging on real world structures due to the sensor scale and/or spatial resolution. [5][6][7][8] On the other hand, new types of sensors based on photoelectric methods such as assembled nanowires/nanotubes or microstructured rubber layers, [9][10][11][12][13][14][15] stretchable and flexible strain sensor with conductive nanostructure for sensitive detection of human motion, [16] piezotronic/piezo-phototronic-effect enhanced light emitting smart sensors, [17,18] and flexible or bionic mechanosensors were proposed as effective sensing techniques for dynamic imaging of pressure or stress and diagnosing movement disorders in high-resolution. [19][20][21][22][23] However, fabrication methods of the abovementioned nanowire array or flexible smart sensors are complicated, and they are inconvenient for scalable precise stress/strain imaging and especially difficult for large-scale application and onsite real world infrastructures.Herein, we report another mechanism of largely scalable and flexible strain sensor using elasticoluminescent smart paint for challenge to solve worldwide structural diagnosis problems ranging from micro to macroscales. The elasticoluminescence presented in this study also called elastico-mechanoluminescence is a unique form of mechanoluminescence (ML) that can generate repeatable and reproducible light emission during elastic deformation. [24][25][26][27][28][29] The new scalable elasticoluminescent strain sensor has great significance on high sensitivity and precise dynamic stress/strain imaging, and onsite fracture inspection and diagnoses on large-scale infrastructures. The innovative scalable strain sensor would prospectively open a Precise dynamic stress/strain imaging is critical for a broad range of research and engineering analyses ranging from micrometer to meter-scales, but there is no precise multiscale strain sensor, especially for onsite real-time structural health monitoring. Here, a scalable elasticoluminescent strain sensor is presented for solving worldwide structural diagnosis problems ranging from micrometer to meter-scales. Significant progress has recently been made on both highly sensitive elasticoluminescent sensor...

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LiNbO₃:Pr³⁺: A Multipiezo Material with Simultaneous Piezoelectricity and Sensitive Piezoluminescence

Cited by 196 publications

References 23 publications

Tailorable Optical Response of Au–LiNbO₃ Hybrid Metamaterial Thin Films for Optical Waveguide Applications

Tailorable Optical Response of Au–LiNbO₃ Hybrid Metamaterial Thin Films for Optical Waveguide Applications

Flexible Multifunctional Sensors for Wearable and Robotic Applications

Scalable Elasticoluminescent Strain Sensor for Precise Dynamic Stress Imaging and Onsite Infrastructure Diagnosis

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LiNbO3:Pr3+: A Multipiezo Material with Simultaneous Piezoelectricity and Sensitive Piezoluminescence

Cited by 196 publications

References 23 publications

Tailorable Optical Response of Au–LiNbO3 Hybrid Metamaterial Thin Films for Optical Waveguide Applications

Tailorable Optical Response of Au–LiNbO3 Hybrid Metamaterial Thin Films for Optical Waveguide Applications

Flexible Multifunctional Sensors for Wearable and Robotic Applications

Scalable Elasticoluminescent Strain Sensor for Precise Dynamic Stress Imaging and Onsite Infrastructure Diagnosis

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Product

Resources

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LiNbO₃:Pr³⁺: A Multipiezo Material with Simultaneous Piezoelectricity and Sensitive Piezoluminescence

Tailorable Optical Response of Au–LiNbO₃ Hybrid Metamaterial Thin Films for Optical Waveguide Applications

Tailorable Optical Response of Au–LiNbO₃ Hybrid Metamaterial Thin Films for Optical Waveguide Applications