Article
Materials Science, Ceramics
Naveen Aruchamy, Stephanie Girod, Sebastjan Glinsek, Emmanuel Defay, Torsten Granzow
Summary: This study compares the fatigue behavior of fully transparent lead zirconate titanate films on fused silica glass or sapphire, respectively, with coplanar interdigitated top electrodes and no bottom electrodes, to that of the same systems in a traditional metal-insulator-metal parallel plate capacitor geometry. The polarization hysteresis decreases rapidly in the latter geometry during bipolar electrical cycling, while systems with coplanar electrodes show no notable fatigue up to 107 cycles. This difference is explained by the columnar microstructure of the films, where the grain boundaries act as trapping sites for oxygen vacancies in coplanar electrode geometries, preventing the formation of agglomerates that cause fatigue through domain wall pinning.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Analytical
Veronika Kovacova, Sebastjan Glinsek, Stephanie Girod, Emmanuel Defay
Summary: In this study, thin films of Pb(Sc,Ta)O-3 were prepared using the sol-gel chemical solution deposition method, and very large electric fields were applied using interdigitated top electrodes. The films showed a high temperature variation and the electrocaloric temperature variation could be tuned with stress conditions.
Article
Engineering, Electrical & Electronic
Ryo Harada, Naoya Iwamoto, Sang-Hyo Kweon, Toshihito Umegaki, Isaku Kanno
Summary: Researchers fabricated flexible piezoelectric energy harvesters composed of PZT thin films on stainless steel foils and tested their power generation performance under finger-bending motion. By applying finger-bending motions, they successfully turned on LEDs using the generated electric power from the stacked PEH.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Engineering, Mechanical
S. Ranjan Mishra, Soran Hassani Fard, Taha Sheikh, Kamran Behdinan
Summary: The present study analyzed the electromechanical properties of AlN, BaTiO3, ZnO, PVDF, and KNN-NTK thin-films and compared them with non-biocompatible materials. BaTiO3 and PVDF are recommended for cantilever-based energy harvester setups and axially-loaded configurations.
Article
Engineering, Environmental
Zheng Zhou, Qilong Zhang, Zhao Zhang, Haoze Kuang, Xiangxin Du, Hui Yang
Summary: This study presents a new approach for high-performance lead-free nanogenerators by utilizing three-dimensional interdigitated electrodes and flexible composites. The research demonstrates the successful achievement of high-current output by harvesting mechanical energy based on piezoelectricity. This work provides valuable insights for the design of material and devices in the field of nanogenerators.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Wardan A. Khatib, Arslan Ayari, Ahmed T. Yasir, Mohammed Talhami, Probir Das, M. A. Quadir, Alaa H. Hawari
Summary: The study demonstrated that the novel electrode array showed good performance in harvesting marine microalgae through dielectrophoretic force. Short electrolysis time and appropriate electrode distance significantly improved the harvesting efficiency and energy efficiency of microalgae.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Electrical & Electronic
Akinori Tateyama, Yuichiro Orino, Yoshiharu Ito, Takahisa Shiraishi, Takao Shimizu, Minoru Kuribayashi Kurosawa, Hiroshi Funakubo
Summary: A setup and approach for simultaneous measurement of the inverse and direct transverse piezoelectric co-efficients of piezoelectric films was constructed. The measurements were carried out on a longitudinal vibration mode resonator with a hydrothermally synthesized (K,Na)NbO3 film deposited on a SrRuO3/SrTiO3 substrate. By applying a driving voltage to the actuator electrode, mechanical vibration was generated and measured using a laser Doppler vibrometer. The inverse and direct piezoelectric responses were evaluated by measuring the output current from the sensing electrode. The obtained coefficients were e31 = -3.60 C/m2 and e31 = -3.69 C/m2, respectively.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Multidisciplinary Sciences
Jun Li, Corey Carlos, Hao Zhou, Jiajie Sui, Yikai Wang, Zulmari Silva-Pedraza, Fan Yang, Yutao Dong, Ziyi Zhang, Timothy A. Hacker, Bo Liu, Yanchao Mao, Xudong Wang
Summary: In this study, a promising solution that integrates piezoelectricity, stretchability, and biocompatibility in one material system was presented, which is a critical step towards tissue-compatible biomedical devices.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Li-Cheng Cheng, Sanjaya Brahma, Jow-Lay Huang, Chuan-Pu Liu
Summary: We significantly improved the piezoelectric coefficient of ZnO thin film by yttrium doping, leading to enhanced performance of the piezoelectric nanogenerator. Y doping resulted in the formation of permanent dipoles and changes in film structure.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Physical
Byeong Kon Kim, Kwan Sik Park, Sung Hun Key, Yong Soo Cho
Summary: Piezoelectric energy harvesters based on PZT ceramics have been extensively studied for low-power applications. This study proposes unprecedented multiple-harvester structures with record-breaking performance for nonresonant-frequency or extremely low-frequency applications. Through the combination of PZT with relaxor materials, the researchers optimized the structures and piezoelectricity, leading to exceptional energy-harvesting performance of the four-layer 0.4PZN-0.6PZT unimorph cantilever.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Composites
Xiyu Gu, Yan Liu, Yuanhang Qu, Liwenjuan Li, Yao Cai, Jiaqi Ding, Ting Yu, Shishang Guo, Chengliang Sun
Summary: A method for predicting the effective coefficients of AlN/AlScN composite piezoelectric thin films is proposed and validated in this study. The mechanical and piezoelectric properties of AlN/Al0.8Sc0.2N composite films with different thickness ratios are calculated using first-principles calculations, the Reuss model theory, and the Mori-Tanaka method. The accuracy of the prediction method is verified through experimental measurements, and it is found that the voltage sensitivity of the accelerometer is significantly enhanced by the AlN/AlScN composite piezoelectric film. This work has important implications for the theoretical study and application of AlN/AlScN composite piezoelectric films.
COMPOSITES COMMUNICATIONS
(2023)
Article
Physics, Applied
Hiroshi Nishiyama, Ryo Ito, Tomoya Aizawa, Takayuki Goto, Hiroyuki Shimizu
Summary: Lead-free multilayered piezoceramics with Ag0.9Pd0.1 inner electrodes were studied for their large-signal piezoelectric properties under combined electrical and mechanical loadings. The results showed that the piezoelectric constant was stable under zero stress and had a small variation when the stress was increased. Further investigations revealed that the stability of the piezoelectric properties was due to the shift in phase transition temperature caused by the solid solution of the inner electrode.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Jan-Willem Burssens, Appo van der Wiel, Michael Kraft
Summary: The literature often lacks the measurement of piezoelectric properties in the processing of these materials. Current methods for characterizing piezoelectric constants on unstructured thin films are limited, and do not include the important lateral piezoelectric coefficient e(31,f). This article introduces a new method to measure the lateral piezoelectric coefficient on unstructured wafers, using wafer bending to generate charge and calculate the piezoelectric constant. The method shows good correlation with the four-point bending method and requires less stringent measurement equipment.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Xiudeng Wang, Yinshui Xia, Ge Shi, Zhangming Zhu, Huakang Xia, Yidie Ye, Zhidong Chen, Libo Qian, Lianxi Liu
Summary: A mutually synergistic hybrid energy harvesting (SHEH) circuit with both AC and DC energy harvesting capability is proposed, where the vibration period of the piezoelectric transducer (PZT) serves as the switching signal for photovoltaic (PV) energy harvesting. Injecting a small portion of PV energy into PZT during the sampling phase enhances the damping force and charge extraction of PZT. The total synergistically extracted power from the proposed hybrid harvester is theoretically higher than the sum of the power obtained from each transducer independently.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2023)
Article
Materials Science, Multidisciplinary
Joseph Faudou, Raphael Ramos, Mohammed Benwadih
Summary: Piezoelectric materials are a promising alternative for powering small electronic devices with minimal environmental impact. This paper presents a new method for characterizing the performance of piezoelectric energy harvesters under mechanical impact using a custom test bench. The study focuses on screen-printed piezoelectric thin films with different substrates, demonstrating that devices printed on stretchable substrates perform better in energy harvesting, while the nature of the substrate also affects the material properties of the piezoelectric film.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Acoustics
Andrea Lozzi, Ernest Ting-Ta Yen, Paul Muralt, Luis Guillermo Villanueva
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2019)
Article
Materials Science, Multidisciplinary
Cosmin Silviu Sandu, Fazel Parsapour, Stefan Mertin, Vladimir Pashchenko, Ramin Matloub, Thomas LaGrange, Bernd Heinz, Paul Muralt
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2019)
Article
Materials Science, Coatings & Films
Kaitlin M. Howell, Waqas Bashir, Annalisa De Pastina, Ramin Matloub, Paul Muralt, Luis G. Villanueva
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2019)
Article
Nanoscience & Nanotechnology
Faze Parsapour, Vladimir Pashchenko, Nicolas Kurz, Cosmin Silviu Sandu, Thomas LaGrange, Kaoru Yamashita, Vadim Lebedev, Paul Muralt
ADVANCED ELECTRONIC MATERIALS
(2019)
Article
Physics, Applied
Fazel Parsapour, Vladimir Pashchenko, Hugo Chambon, Pascal Nicolay, Ingo Bleyl, Ulrike Roesler, Paul Muralt
APPLIED PHYSICS LETTERS
(2019)
Article
Materials Science, Multidisciplinary
Ahsanul Kabir, Simone Santucci, Ngo Van Nong, Maxim Varenik, Igor Lubomirsky, Robin Nigon, Paul Muralt, Vincenzo Esposito
Article
Materials Science, Multidisciplinary
C. S. Sandu, F. Parsapour, D. Xiao, R. Nigon, L. M. Riemer, T. LaGrange, P. Muralt
Editorial Material
Materials Science, Multidisciplinary
Paul Muralt
Article
Multidisciplinary Sciences
D-S Park, A. D. Rata, I. Maznichenko, S. Ostanin, Y. L. Gan, S. Agrestini, G. J. Rees, M. Walker, J. Li, J. Herrero-Martin, G. Singh, Z. Luo, A. Bhatnagar, Y. Z. Chen, V Tileli, P. Muralt, A. Kalaboukhov, I Mertig, K. Doerr, A. Ernst, N. Pryds
NATURE COMMUNICATIONS
(2020)
Article
Engineering, Electrical & Electronic
Adrien Piot, Jaka Pribosek, Jordan Maufay, Johannes Schicker, Andreas Tortschanoff, Ramin Matloub, Paul Muralt, Mohssen Moridi
Summary: The paper presents a systematic approach to transduction optimization of resonant piezo-based MEMS devices by utilizing inverse design and mechanical action to calculate the polarization map. The proposed method resulted in a 70% increase in optical scan angle and 47% reduction in power consumption.
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2021)
Article
Chemistry, Multidisciplinary
Quentin Micard, Giacomo Clementi, Ausrine Bartasyte, Paul Muralt, Guglielmo G. Condorelli, Graziella Malandrino
Summary: The impact of Dy doping on the ferroelectric, dielectric, and pyroelectric properties of BiFeO3 films was investigated. It was found that Dy doping significantly increases the dielectric response and pyroelectric coefficient, with the best performance achieved at a concentration of 8% Dy. The results show that Dy-doped lead-iron oxide films have high thermal energy harvesting efficiency.
ADVANCED MATERIALS INTERFACES
(2022)
Editorial Material
Physics, Applied
Isaku Kanno, Jun Ouyang, Jun Akedo, Takeshi Yoshimura, Barbara Malic, Paul Muralt
APPLIED PHYSICS LETTERS
(2023)
Correction
Materials Science, Multidisciplinary
Paul Muralt
Proceedings Paper
Engineering, Electrical & Electronic
Stefan Mertin, Clemens Nyffeler, Tapani Makkonen, Bernd Heinz, Andrea Mazzalai, Thorsten Schmitz-Kempen, Stephan Tiedke, Tuomas Pensala, Paul Muralt
2019 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Paul Muralt, Vladimir Pashchenko, Fazel Parsapour, Stefan Mertin, Bernd Heinz, Pascal Nicolay
2019 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)
(2019)