Optimized physical properties of [001]-textured (Na, K)NbO3-based lead-free piezoceramics for high power piezoelectric energy harvesters

Seok-June Chae, Seung-Hyun Kim, In-Su Kim, Geun-Soo Lee, Seok-Jung Park and Sahn Nahm

J. Mater. Chem. C, 2024, 12, 1268
DOI: 10.1039/D3TC03601D

Ultrahigh Performance Piezoelectric Energy Harvester Using Lead-Free Piezoceramics with Large Electromechanical Coupling Factor

Yeon-Gyeong Chae, Seok-June Chae, Su-Hwan Go, Eun-Ji Kim, Seok-Jung Park, Hyunseok Song, Sahn Nahm and Pawan Kumar Kulriya

International Journal of Energy Research, 2023, 2023, 1
DOI: 10.1155/2023/6177201

Growth of Single Crystals of (K1−xNax)NbO3 by the Self-Flux Method and Characterization of Their Phase Transitions

Doan Thanh Trung, Eugenie Uwiragiye, Tran Thi Lan, John G. Fisher, Jong-Sook Lee, Jungwi Mok, Junseong Lee, Furqan Ul Hassan Naqvi and Jae-Hyeon Ko

Materials, 2024, 17, 4195
DOI: 10.3390/ma17174195

Improvement of piezoelectricity of (Na, K)Nb-based lead-free piezoceramics using [001]-texturing for piezoelectric energy harvesters and actuators

Su-Hwan Go, Hero Kim, Dae-Su Kim, Jae-Min Eum, Seok-June Chae, Eun-Ji Kim and Sahn Nahm

Journal of the European Ceramic Society, 2022, 42, 6478
DOI: 10.1016/j.jeurceramsoc.2022.06.078

Effect of the Crystal Structure on the Piezoelectricity of [001]-Textured (Na, K)(Nb, Sb)O3-SrZrO3-(Bi, Ag)ZrO3 Lead-Free Piezoelectric Thick Film

Su-Hwan Go, Dae-Su Kim, Yeon-Gyeong Chae, Seok-June Chae, Eun-Ji Kim, Hyeon-Min Yu, Bum-Joo Kim, Seok-Jung Park, Joun-Ho Lee and Sahn Nahm

Actuators, 2023, 12, 66
DOI: 10.3390/act12020066

Developing a face-shear lead-free piezoelectric transducer through anti-parallel co-poling and its application to an omnidirectional piezoelectric transducer

Jae-Min Eum, Eun-Ji Kim, Dae-Su Kim, Su-Hwan Go, Yeon-Gyeong Chae, Dong-Gyu Lee, Seung Il Kim, Yong Rak Choi, Wonjae Choi, Jong Moon Ha, Hong Min Seung and Sahn Nahm

Ceramics International, 2023, 49, 7556
DOI: 10.1016/j.ceramint.2022.10.252

Fabrication and physical properties of Na(Nb1-xSbx)O3 templates for the [001]-texturing of KNN-based ceramics

Seok-June Chae, Geun-Soo Lee, Seung-Hyun Kim, In-Su Kim, Jung-Soo Kim, San Kwak, Byeong-Jae Min, Seok-Jung Park and Sahn Nahm

Journal of Alloys and Compounds, 2024, 993, 174611
DOI: 10.1016/j.jallcom.2024.174611

Application of [001]-textured (K, Na)(Nb, Sb)O3-CaZrO3 thick films to piezoelectric energy harvesters

Seok-June Chae, Ji-won Na, Dae-Su Kim, Sun-Woo Kim, Su-Hwan Go, Hero Kim, Eun-Ji Kim, Jae-Min Eum and Sahn Nahm

Ceramics International, 2022, 48, 18401
DOI: 10.1016/j.ceramint.2022.03.109

Outstanding temperature- and electric field-independent dielectric characteristics of KNbO3-BaTiO3 ceramic for X9R MLCC application

In-Su Kim, San Kwak, Byeong-Jae Min, Bumjoo Kim, Geun-Soo Lee, Jeong-Woo Jang and Sahn Nahm

Journal of Alloys and Compounds, 2024, 1007, 176363
DOI: 10.1016/j.jallcom.2024.176363

Enhancement of piezoelectric properties in KNN-based lead-free ceramics through controlled NaNbO3 seed addition and phase structure engineering

Sumi Kim, Seong-Uk Oh, Dokyum Kim, Jung-A. Lee, Young-Woo Heo, Joon-Hyung Lee and Sahn Nahm

J Mater Sci, 2025, 60, 3365
DOI: 10.1007/s10853-025-10676-1

Enhancing the thermal stability of the dielectric property by tilting the NbO6 octahedra in (Na1-zKz)NbO3-SrTiO3 ceramics

San Kwak, In-Soo Kim, Byeong-Jae Min, Geun-Soo Lee, Bum-Joo Kim, Jung-Soo Kim, Seung-Hyun Kim, Jeong-Woo Jang and Sahn Nahm

Ceramics International, 2024, 50, 44609
DOI: 10.1016/j.ceramint.2024.08.309

Recent Developments in (K, Na)NbO3-Based Lead-Free Piezoceramics

Geun-Soo Lee, Jung-Soo Kim, Seung-Hyun Kim, San Kwak, Bumjoo Kim, In-Su Kim and Sahn Nahm

Micromachines, 2024, 15, 325
DOI: 10.3390/mi15030325

Crystallographic texture and phase structure induced excellent piezoelectric performance in KNN‐based ceramics

Shuo Gao, Peng Li, Jiawei Qu, Wei Li, Jiwei Zhai, Feifei Wang, Jigong Hao, Peng Fu, Zhongbin Pan and Wangfeng Bai

J Am Ceram Soc., 2023, 106, 3481
DOI: 10.1111/jace.19013

Comparison of (K0.5Na0.5)NbO3 Single Crystals Grown by Seed-Free and Seeded Solid-State Single Crystal Growth

John G. Fisher, Su-Hyeon Sim, Trung Thành Ðoàn, Eugenie Uwiragiye, Jungwi Mok and Junseong Lee

Materials, 2023, 16, 3638
DOI: 10.3390/ma16103638

Effect of crystal structure on the improvement of the piezoelectric properties for [001]-textured PZT-PNN piezoceramics

Jung-Soo Kim, Geun-Soo Lee, Seung-Hyun Kim, San Kwak and Sahn Nahm

Ceramics International, 2024, 50, 23232
DOI: 10.1016/j.ceramint.2024.04.047