Electrical properties of photovoltaic lead lanthanum zirconate titanate in an electrostatic-optical motor application

Ichiki, Masaaki; Morikawa, Yasushi; Mabune, Y.; Nakada, Taka‐aki

doi:10.1016/s0955-2219(03)00474-6

Cited by 18 publications

(18 citation statements)

References 12 publications

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“…The photo-induced strain and applications of a 0-1 polarized wafer have been studied by a number of authors, e.g., Uchino et al (1985), Fukuda et al (1995) and Shih et al (2005). For a 0-3 polarized PLZT wafer, Ichiki et al (2004Ichiki et al ( , 2005 measured photovoltaic currents and voltages, and then fitted using the least square technique. Qin et al (2007) studied photocurrents of 0-3 polarized wafers.…”

Section: Phenomenological Modeling Of Plzt Actuators Novel Formulatimentioning

confidence: 99%

“…In order to achieve sufficiently photovoltaic field strength, strong light intensity is required and a high pressure mercury lamp is normally used (Poosanaas-Burke et al, 1998;Ichiki et al, 2004;Yao et al, 2005). When a high pressure mercury lamp is used as light source, incident light is incoherent.…”

Section: Voltage Source Model Nonlinear Featuresmentioning

confidence: 99%

“…It has been known that ferroelectric ceramics exhibit increasingly nonlinear properties with stronger electrical field. Under strong light illumination, high field strength will be induced and thus nonlinear characteristics of PLZT materials should be considered (Dimos et al, 1994;PoosanaasBurke et al, 2000;Ichiki et al, 2004). The nonlinearities of ferroelectric ceramics are described by a hysteresis loop of electrical polarization and a butterfly loop of mechanical strain.…”

Section: Nonlinear Constitutive Equationsmentioning

confidence: 99%

“…The anomalous photovoltaic effect in PLZT materials is observed only in the direction of spontaneous polarization of ferroelectric materials. There are mainly two polarizing schemes for PLZT wafers (Ichiki et al, 2004;Leng et al, 2006), namely, poling in 0-1 (length) or 0-3 (thickness) direction, as shown in Fig. 1(a) and (b).…”

Section: Introductionmentioning

confidence: 99%

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Constitutive equations for 0-3 polarized PLZT actuators

Luo

Tong

2009

International Journal of Solids and Structures

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a b s t r a c tThis article presents constitutive equations of transparent lead lanthanum zirconate titanate (PLZT) materials poling along thickness direction or with 0-3 polarization. Discussed first are the Beer's law of light transmission in transparent solid and the photovoltaic current density in PLZT materials. Formulas for field strength and electrical potential between two electrodes of a PLZT wafer are then derived from the basic photovoltaic equations. By superposing the photovoltaic and the converse piezoelectric effects, we formulate a novel expression for photo-induced strain that is nonlinearly dependent of incident light intensity and varies with light penetration depth in through-thickness direction. On the basis of the derived photo-induced strain, linear and nonlinear constitutive equations of 0-3 polarized PLZT actuators are formulated. The present model is validated by using the available experimental data in the literature. By using the present model with an exponential variation of strain through the thickness, closed-form solutions for the equivalent loads acting on a PLZT unimorph, bimorph and intelligent beam are obtained and then compared with numerical results available in the literature.

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Section: Phenomenological Modeling Of Plzt Actuators Novel Formulatimentioning

confidence: 99%

Section: Voltage Source Model Nonlinear Featuresmentioning

confidence: 99%

Section: Nonlinear Constitutive Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Constitutive equations for 0-3 polarized PLZT actuators

Luo

Tong

2009

International Journal of Solids and Structures

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“…Varieties of optical micro-devices using PLZT ceramics were proposed, for example, photo-driven micro-walking machines, 1,2 ''sunflower'' device, 3 photo-driven relay, 4 electrostaticoptical motor, 5 photo-driven gripper, 6,7 and photophone device. 8 Meanwhile, a large number of PLZT actuators were proposed, such as rainbow 1 School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China 2 School of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing, China configuration actuator, 9 bimorph configuration actuator, 7 0-3 polarization PLZT actuator, 10 twodimensional (2D) distributed opto-electro-mechanical actuator, 11 multi-degree-of-freedom (DOF) photostrictive actuator, 12 and Skew-Quad actuator.…”

Section: Introductionmentioning

confidence: 99%

Research on the response improvement of optical actuation based on lead lanthanum zirconate titanate ceramics

Wang

Huang

Tang

2015

Advances in Mechanical Engineering

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Lead lanthanum zirconate titanate actuators taken as one type of photo-deformable actuators have been widely applied for micro-driven systems and active vibration control of photostrictive laminated flexible structures. However, the slow response of photodeformation of single patch lead lanthanum zirconate titanate actuator greatly affects its application. In this article, the main factors for the slow response of the lead lanthanum zirconate titanate actuator are investigated using experimental method. The increasing temperature during light on state and the residual photovoltage and photodeformation during light off state are considered as dominant factors causing the slow response of the lead lanthanum zirconate titanate actuator. To gain a better driving capability of lead lanthanum zirconate titanate actuator, some effective solutions through weakening the effect of increasing temperature and eliminating residual photovoltage and photodeformation are proposed and experimentally validated in this article. Considering the effective solutions proposed in this article, a novel optical driving mechanism based on multi-patches combination is proposed.

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Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion

et al. 2019

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An insight into the analogies, state-of-the-art technologies, concepts, and prospects under the umbrella of perovskite materials (both inorganicorganic hybrid halide perovskites and ferroelectric perovskites) for future multifunctional energy conversion and storage devices is provided. Often, these are considered entirely different branches of research; however, considering them simultaneously and holistically can provide several new opportunities. Recent advancements have highlighted the potential of hybrid perovskites for high-efficiency solar cells. The intrinsic polar properties of these materials, including the potential for ferroelectricity, provide additional possibilities for simultaneously exploiting several energy conversion mechanisms such as the piezoelectric, pyroelectric, and thermoelectric effect and electrical energy storage. The presence of these phenomena can support the performance of perovskite solar cells. The energy conversion using these effects (piezo-, pyro-, and thermoelectric effect) can also be enhanced by a change in the light intensity. Thus, there lies a range of possibilities for tuning the structural, electronic, optical, and magnetic properties of perovskites to simultaneously harvest energy using more than one mechanism to realize an improved efficiency. This requires a basic understanding of concepts, mechanisms, corresponding material properties, and the underlying physics involved with these effects. His current research focuses on developing functional inorganic−organic hybrid materials and energy conversion devices including perovskite solar cells.are found to have lower t-values (0.75 < t < 1.0). t-values help in governing and tuning the presence of ferroelectricity in perovskites [11] and are responsible for the transition temperatures in ferroelectrics. [57] In the case of hybrid inorganic-organic perovskites, the A-site and/or X-site ions are replaced by molecular building blocks; hence, the tolerance

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Electrical properties of photovoltaic lead lanthanum zirconate titanate in an electrostatic-optical motor application

Cited by 18 publications

References 12 publications

Constitutive equations for 0-3 polarized PLZT actuators

Constitutive equations for 0-3 polarized PLZT actuators

Research on the response improvement of optical actuation based on lead lanthanum zirconate titanate ceramics

Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion

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