Article
Materials Science, Multidisciplinary
Muhammad Habib, Muhammad Javid Iqbal, Myang Hwan Lee, Da Jeong Kim, Fazli Akram, Mah Gul, Aurang Zeb, Ihsan Ur Rehman, Myong-Ho Kim, Tae Kwon Song
Summary: The structural evolution and electrical properties of 0.67Bi(1.03)FeO3-0.33BaTi(1-x)Zr(x)O(3) piezoelectric ceramics were studied, showing enhanced piezoelectric and ferroelectric responses near the morphotropic phase boundary. The dynamic piezoelectric coefficient gradually increased with temperature, while a large electrostrictive coefficient was obtained in a specific temperature range. The relationship between crystalline structure and functional properties suggests potential for future research into lead-free piezoelectric ceramics.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Ceramics
Atul Thakre, Deepam Maurya, Do Yoen Kim, Yunseok Kim, Panithan Sriboriboon, Il-Ryeol Yoo, Shashank Priya, Kyung-Hoon Cho, Hyun-Cheol Song, Jungho Ryu
Summary: Enhanced pyroelectric response was achieved in lead-free KBT-BT-NBT ceramics through domain engineering and texture along the [001] crystallographic direction. X-ray diffraction analysis indicated a high degree of texture (93%) along [001]. These textured ceramics exhibited comparable pyroelectric figures of merit to lead-based materials at room temperature, and a significant enhancement in pyroelectric response at depolarization temperature due to coherent domain switching.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Fan Yang, Qiang Li, Dingwei Hou, Yuxin Jia, Weijia Wang, Huiqing Fan
Summary: In this study, lead-free relaxor ferroelectric ceramics were successfully fabricated via solid-state sintering technique, and their energy storage density and efficiency were improved. The ceramics exhibited excellent temperature stability and fatigue resistance, demonstrating their potential in energy storage.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Myang Hwan Lee, Hae In Choi, Da Jeong Kim, Ji Su Kim, Tae Kwon Song
Summary: Hard piezoelectric properties were investigated in lead-free BiFeO3-BaTiO3 (BF- BT) ceramics. Rhombohedral (R) phase ceramics of (1 - x)BF-xBT (x = 0.20-0.30) were prepared. The x = 0.20 ceramic showed the best hard piezoelectric properties, with the highest Q(m) = 403 and the highest T-C = 607°C. In contrast, the x = 0.30 ceramic showed soft piezoelectric properties, with d(3)(3) = 301 pC/N and k(p) = 0.33, and T-C = 510°C. The BF-BT system in the R-phase-rich region has good hard piezoelectric properties for transducer applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Li Yang, Chao Chen, Xiangping Jiang, Xiaokun Huang, Xin Nie, Saisai Chang
Summary: Lead-free piezoelectric ceramics with excellent performance were synthesized using conventional sintering methods. The impacts of Bi compensation and sintering conditions on the structure and electrical properties were studied. The simultaneous optimization of Bi compensation and sintering conditions will provide guidance for designing ceramics used in various device applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Weijie Zheng, Jiaqi Lin, Xinmei Liu, Wenlong Yang, Yuanshuo Li
Summary: The study systematically investigated the effect of co-doping Ce and Sb on the performance of BCZTC ceramics, showing significant improvements in structure, properties, and microstructure. The co-doped ceramics exhibited enhanced grain growth, relative density, and electrical performance, making them promising candidates for lead-free devices.
Article
Chemistry, Physical
Haiyan Kuang, Tongxiang Liang, Xiang He, Shan Wu, Vyunov Oleg, Dongfang Pang
Summary: In this study, BNT-6BT-xSm ferroelectric ceramics with different doping contents of samarium (Sm) were prepared using the solid-state reaction method. The introduction of Sm into the ceramic system led to a transition from order to disorder. The ceramics exhibited reduced grain size, decreased remnant polarization, and coercive field with increasing Sm content. However, the maximum electric field-induced strain and piezoelectric coefficient reached their highest values at a certain composition. Therefore, BNT-6BT-0.03Sm lead-free ferroelectric ceramic shows promise as a substitute for lead-based ferroelectric ceramics for piezoelectric actuators.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Habib, Fazli Akram, Pervaiz Ahmad, F. F. Al-Harbi, Israf Ud Din, Qamar Iqbal, Tauseef Ahmed, Salman Ali Khan, Ali Hussain, Tae-Kwon Song, Myong-Ho Kim, Soonil Lee
Summary: Nb-modified lead-free BF-BT ceramics achieved excellent piezoelectric performance through chemical modification, including outstanding piezoelectric properties and relatively low piezoelectric strain hysteresis.
Article
Crystallography
Shibo Guan, Huabin Yang, Shuai Cheng, Hua Tan, Guanjun Qiao, Qiaohong Chen, Jiwen Xu, Linna Yuan, Xueting Wang, Ling Yang
Summary: BiGaO3 doped BiFeO3-BaTiO3 ceramics were synthesized and their phase analysis, microstructure, piezoelectric, ferroelectric, dielectric properties, and thermal stability were investigated. The ceramics showed rhombohedral (R) and tetragonal (T) structures, with particle dimensions increasing with the concentration of BiGaO3. Electrical properties were improved with the addition of a small amount of BiGaO3, with increased piezoelectric constants, electromechanical coupling coefficient, mechanical Quality Factor, decreased dielectric loss, increased residual polarization intensity, and specific Curie temperature and depolarization temperature. The piezoelectric response of the ceramics increased rapidly with increasing temperature, reaching a maximum at 340 ℃ and gradually reducing to zero at 450 ℃.
Article
Materials Science, Ceramics
Tianqiong Wu, Wu Zhang, Fafu Liu, Zhanmin Dou, Shengqiang Han, Pengyuan Fan, Sheng-Gui Chen, Chanatip Samart, David Salamon, Hua Tan, Haibo Zhang
Summary: In this research, the introduction of 0.93NBT-0.07BT ceramic into 0.7BF-0.3BT ceramic has enhanced the piezoelectric property by creating a morphotropic phase boundary. XRD analysis confirms the presence of a homogeneous solid solution in the (0.7BF-0.3BT)-x(0.93NBT-0.07BT) ceramics, still within the MPB region. This study provides a new approach for the application of BF-BT ceramics in high-temperature piezoelectric devices.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Muhammad Habib, Fazli Akram, Pervaiz Ahmad, Imen Kebaili, Attaur Rahman, Israf Ud Din, Muhammad Javid Iqbal, Aurang Zeb, Mayeen Uddin Khandaker, Abdennaceur Karoui, Myong-Ho Kim, Tae Kwon Song
Summary: The lead-free Sm-modified 0.67Bi(1.03)FeO(3)-0.33BaTiO3 ceramics system was systematically studied, and a phase diagram was developed based on crystal structure and electromechanical properties. By modifying Bi3+ sites with Sm3+, the long-range ferroelectric order of the rhombohedral and tetragonal mixed phase was changed to a short-range relaxor ferroelectric order. Excellent static and dynamic piezoelectric coefficients were achieved near the morphotropic phase boundary, and the piezoelectric strain performance was enhanced at the crossover boundary of the normal and relaxor ferroelectric phases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Muhammad Habib, Myang Hwan Lee, Da Jeong Kim, Fazli Akram, Hai In Choi, Myong-Ho Kim, Won-Jeong Kim, Tae Kwon Song
Summary: By studying three different series of lead-free ceramics, two morphotropic phase boundaries (MPBs) were discovered, revealing the relationship between piezoelectric performance and crystal structure. The significant enhancement in piezoelectric strain response due to local structural heterogeneity caused by La3+ doping serves as the basis for the improvement in ceramic performance.
JOURNAL OF MATERIOMICS
(2021)
Article
Chemistry, Physical
Attaur Rahman, Mahmoud S. Alkathy, Muhammad Habib, Jamil Ur Rahman, Fabio L. Zabotto, Flavio Paulo Milton, Alexandre Strabello, Soonil Lee, J. A. Eiras
Summary: In this study, excellent ferroelectric, piezoelectric, and dielectric properties were achieved in a lead-free piezoelectric ceramic system by coexistence of orthorhombic-tetragonal phase boundary and increased grain size. The addition of Li+ ions facilitated the increase in grain size and the shift of phase transitions, leading to desirable electrical properties and moderate Curie temperature. The sample with x = 0.03 exhibited large average grain size, coexistence of orthorhombic-tetragonal phases, and excellent physical properties. These favorable physical properties were attributed to the coexistence of phase transitions, large grain size, and hybridization between Bi 6p and O 2p.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Zhi-Gang Liu, Ming-Ding Li, Zhen-Hua Tang, Xin-Gui Tang
Summary: Composite energy storage ceramics (BT-BMH) were prepared for the first time using the traditional solid-state method, showing significant relaxation behaviors and improved energy storage performance. The addition of BMH induced relaxor ferroelectric properties and resulted in sublinear hysteresis loops in the ceramics, facilitating efficient energy storage. The optimized BT-BMH ceramics demonstrated excellent stability at variable temperatures and frequencies, indicating potential for energy storage applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Zheng Wu, Jiaqian Yang, Xianyao Jiang, Xucheng Ke, Yu Cai, Tao Wang, Zhihua Duan, Zhongchen Gao, Feifei Wang
Summary: The piezoelectric and electromechanical properties of NBT-6BT lead-free piezoelectric ceramic were studied using AC polarization and DC polarization methods. The results showed that the thickness-mode electromechanical coupling coefficient (k(t)) of NBT-6BT near the MPB was significantly improved by AC polarization, with a 28.6% enhancement ratio. The enhancement was mainly due to the higher domain wall density boosted by AC polarization, as observed through piezoresponse force microscopy and X-ray diffraction.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Physics, Applied
Gobinda Das Adhikary, Rajeev Ranjan
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Engineering, Electrical & Electronic
Anupam Mishra, Dipak Kumar Khatua, Gobinda Das Adhikary, Naveen Kumar, Ashutosh Upadhyay, Bhoopesh Mahale, Sujoy Saha, Bhaskar Majumdar, Anatoliy Senyshyn, Rajeev Ranjan
Summary: The effect of sintering temperature on the properties of lead-free piezoelectric NBT-6BT was studied, with the optimum piezoelectric response observed at 1150 degrees C sintering temperature. This response was found to be associated with structural disorder and long-range ferroelectric order in the poled state of the specimen.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Energy & Fuels
Naveen Kumar, Bhoopesh Mahale, Tanyaradzwa S. Muzata, Rajeev Ranjan
Summary: Technological advancement has led to an increase in electronic waste, prompting the need for environmentally sustainable wearable electronic systems. This study demonstrates the feasibility of fabricating a flexible piezoelectric energy harvester and sensor using biodegradable polymer reinforcement, with significant power output density.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Gobinda Das Adhikary, Vivek Dwij, Anatoliy Senyshyn, Vasant Sathe, Rajeev Ranjan
Summary: Among different piezoceramics, NBT-based systems show a large electrostrain when pushed at the threshold of ergodic-nonergodic relaxor transition. A new approach is demonstrated to achieve similar electrostrain level with high d(33) by exploiting the structural disorder.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Ajay Kumar Kalyani
Summary: This study reports a non-classical approach to obtain morphotmpic phase boundaries (MPB) in piezoelectric materials by choosing end members with similar polar symmetry, leading to an enhanced piezoelectric response.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Optics
Arnab De, Anupam Mishra, Dipak Kumar Khatua, Vivek Dwij, Vasant Sathe, Satyam Jena, Rajeev Ranjan
Summary: A novel approach to thermometric material design based on temperature tuning of emission was proposed. A model ferroelectric phosphor demonstrated high thermal sensitivity and good signal discriminability, providing a promising alternative route for developing self-referencing optical thermometers with high sensitivity.
Article
Physics, Condensed Matter
Arnab De, Vivek Dwij, Vasant Sathe, M. A. Hernandez-Rodriguez, Luis D. Carlos, Rajeev Ranjan
Summary: By adopting the dual use of Raman and photoluminescence signals, we have demonstrated the possibility of achieving large temperature sensitivity over a wider temperature range. We propose the Raman-PL intensity ratio as an alternative thermometric parameter and successfully achieved large temperature tuning of color and relative temperature sensitivities by studying Eu3+-doped BaTiO3 phosphors.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Ceramics
Niraj Kumar, Ekta Kumari, P. Siva Ram Krishna, Ajay Kumar Kalyani
Summary: A new ferroelectric solid solution has been explored for high-temperature piezoelectric materials. The study reveals a correlation between composition and the Curie point and tetragonal lattice strain. Neutron powder diffraction analysis suggests the anomalous behavior is due to the off-centering characteristic of the Bi+3 ion at the A-site.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Physics, Applied
Ashutosh Upadhyay, Naveen Kumar, Gobinda Das Adhikary, Ram Prakash Singh, Anupam Mishra, Rajeev Ranjan
Summary: This paper introduces a piezoelectric material in a Sn-modified relaxor ferroelectric system with large unipolar electrostrain and small strain hysteresis, which exhibits high stability and high piezoelectric coefficients, making it an important candidate for simultaneous use as a sensor and high strain actuators.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
K. Datta, Naveen Kumar, A. Upadhyay, B. Mihailova, Rajeev Ranjan
Summary: Local structural correlations in a novel ferroelectric solid solution have been revealed through atomistic modeling and measurements, showing distribution of cation-specific dipolar fluctuations at a key composition. Additionally, polarized Raman scattering was observed in both poled and unpoled ceramics, indicating a responsive and polarizable matrix in the material.
Article
Materials Science, Multidisciplinary
Gobinda Das Adhikary, Deepak Sharma, Pooja Punetha, Gudeta Jafo, Getaw Abebe, Anupam Mishra, Anatoliy Senyshyn, Rajeev Ranjan
Summary: Our study investigated the phase boundaries of three Na0.5Bi0.5TiO3-based piezoelectric systems, revealing a common onset of disordered P4bm phase in all three systems. Additionally, we found that the predominant effect of distortion overrides the interferroelectric instability, thereby limiting the piezoelectric response of NBT-BT/NBT-KBT similar to that in NBT-ST.
Article
Materials Science, Multidisciplinary
Gobinda Das Adhikary, Bhoopesh Mahale, Badari Narayana Rao, Anatoliy Senyshyn, Rajeev Ranjan
Summary: This study provides new insights into the structural complexities and properties of a lead-free piezoelectric alloy system through a detailed investigation using a set of complementary tools.
Article
Materials Science, Multidisciplinary
Sujoy Saha, Ram Prakash Singh, Ying Liu, Atal Bihari Swain, Amritesh Kumar, V Subramanian, A. Arockiarajan, G. Srinivasan, Rajeev Ranjan
Summary: The study demonstrates that electrically poled ferroelectric matrix enhances localized magnetostrictive deformations in a ferroelectric-ferrimagnetic composite. Dy-modified ferroelectric ceramics exhibit ferrimagnetic DyIG as precipitates with a macroscopic strain almost 50% of the pure DyIG strain. This amplification of the localized magnetostrictive deformation is caused by the motion of ferroelectric-ferroelastic domains in the poled ferroelectric matrix.
Article
Energy & Fuels
Bhoopesh Mahale, Naveen Kumar, Arnab De, Rishikesh Pandey, Rajeev Ranjan
Summary: The study investigated the fabrication and performance of polymer-piezoceramic composites, finding that the grain size of ceramic powders plays a crucial role in determining the composite's properties, with the PT-BNZ composite exhibiting the best piezoelectric and energy harvesting performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Gobinda Das Adhikary, Bhoopesh Mahale, Anatoliy Senyshyn, Rajeev Ranjan
