2024

[78] Enhanced energy storage and temperature-stable dielectric properties in (1-x)[(Na0.4K0.1Bi0.5)0.94Ba0.06TiO3]-xLa0.2Sr0.7TiO3 lead-free relaxor ceramics

Arun Kumar Yadav, Il-Ryeol Yoo, Seong-Hui Choi, Je-Yeon Park, Min-Seok Kim, Jiung Cho*, Hyun-Cheol Song*, Kyung-Hoon Cho* 

Journal of Alloys and Compounds 985, 174016 (2024)

[77] A Superparaelectric State in Relaxor Ferroelectric (Sr,Bi)TiO3-Bi(Mg,Ti)O3-Modified BaTiO3 Ceramics to Achieve High Energy Storage Performance 

Il-Ryeol Yoo, Seong-Hui Choi, Je-Yeon Park, Min-Seok Kim, Arun Kumar Yadav, Kyung-Hoon Cho*

 Materials 17(2), 426 (2024)

2023

[76] Nanocrystalline Composite Layer Realized by Simple Sintering Without Surface Treatment, Reducing Hydrophilicity and Increasing Thermal Conductivity

Hyun‐Ae Cha, Su‐Jin Ha, Hye‐Jeong Jang, Byeong‐Min Ahn, Young Kook Moon, Jung‐Hwan Kim, Jong‐Jin Choi, Byung‐Dong Hahn*, Sang‐Ho Han, Jun Lim, Do‐Cheon Ahn, In Chul Jung, Kyung‐Hoon Cho*, Do Kyung Kim*, Jae Chul Kim, Cheol‐Woo Ahn* 

Small Methods 2300969 (2023) 

[75] Mn-doped 0.15Pb(Yb1/2Nb1/2)O3–0.48Pb(Mg1/3Nb2/3)O3–0.37PbTiO3 piezoelectric ceramics for high performance high-power transducers

Dong-Gyu Lee, Su-hwan Go, Il-Ryeol Yoo, Seong-Hui Choi, Yi Yeon Kim, Hyun Soo Kim, Sunghoon Hur, Heemin Kang, Jeong Min Baik, Yong Seok Park, Sahn Nahm, Chong-Yun Kang, Kyung-Hoon Cho*, Hyun-Cheol Song*

Ceramic International 49(21), 33480-33488 (2023)

[74] Grain Growth Behavior of (K0.5Na0.5)NbO3 Ceramics Doped with Alkaline Earth Metal Ions

Il-Ryeol Yoo, Seong-Hui Choi, Kyung-Hoon Cho*

Korean Journal of Materials Research 33(4), 135-141 (2023)

[73] Autonomous Resonance‐Tuning Mechanism for Environmental Adaptive Energy Harvesting 

Dong‐Gyu Lee, Joonchul Shin, Hyun Soo Kim, Sunghoon Hur, Shuailing Sun, Ji‐Soo Jang, Sangmi Chang, Inki Jung, Sahn Nahm, Heemin Kang, Chong‐Yun Kang, Sangtae Kim, Jeong Min Baik, Il‐Ryeol Yoo, Kyung‐Hoon Cho*, Hyun‐Cheol Song*

Advanced Science 10, 2205179 (2023)

2022

[72] On a nonlinear broadband piezoelectric energy harvester with a coupled beam array

HK Shim, S Sun, HS Kim, DG Lee, YJ Lee, JS Jang, KH Cho, JM Baik, CY Kang, Y Leng, SH Hur*, HC Song*

Applied Energy 328 (15), 120129 (2022)

[71] An easy approach to obtain high piezoelectric properties in hard PZT sintered at 950°C

JM Cha, SJ Ha, JH Kim, HA Cha, JJ Choi, BD Hahn, KH Cho*, SY Yoon*, CW Ahn*

Ceramic International 49 (1), 264-270 (2022)

[70] Cutting-edge Piezo/Triboelectric-based Wearable Physical Sensor Platforms 

JW Park, JC Shin, HS Kim, SH Hur, KH Cho*, HC Song*

센서학회지 31 (5) , 301-306 (2022)

[69] Effect of Initial Particle Size Distribution of (K0.5Na0.5)NbO3 Powders on Microstructure of Their Sintered Ceramics.

IR Yoo, SH Choi, KH Cho*

Journal of Korean Society for Heat Treatment 35 (2), 57-65 (2022)

[68] Enhanced energy storage properties and excellent fatigue resistance of Pb-free Bi0.47Na0.376K0.094Ba0.06Nb0.024Ti0.97-x(Ta0.24Sn0.7)xO3  relaxor ceramics

AK Yadav, IR Yoo, SH Choi, JY Park, HC Song*, KH Cho*

Journal of Alloys and Compounds 923, 166324 (2022)

[67] Grain Growth Behavior and Electrical Properties of 0.96(K0.46−xNa0.54−x)Nb0.95Sb0.05O3–0.04Bi0.5(Na0.82K0.18)0.5ZrO3 Ceramics

YJ Park, IR Yoo, SH Choi, J Cho*, KH Cho*

Materials 15 (7), 2357 (2022)

2021

[66] BiFeO3-Based Relaxor Ferroelectrics for Energy Storage: Progress and Prospects

B Deka*, KH Cho*

Materials 14 (23), 7188 (2021)

[65] Cation distribution and magnetostrictive strain in CuFe2-xGaxO4  ceramics

B Deka, J Cho, YW Lee, IR Yoo, CW Ahn*, KH Cho*

Ceramics International 47 (9), 11848-11855 (2021).

[64] Enhanced pyroelectric response from domain-engineered lead-free (K0.5Bi0.5TiO3-BaTiO3)-Na0.5Bi0.5TiO3 ferroelectric ceramics

A Thakre, D Maurya, DY Kim, YS Kim, P Sriboriboon, IR Yoo, S Priya, KH Cho*, HC Song*, JH Ryu*

Journal of the European Ceramic Society 41 (4), 2524-2532 (2021).

2020

[63] An easy approach to obtain textured microstructure and transparent seed crystal prepared by simple molten salt synthesis in modified potassium sodium Niobate

S Park, A Rahman, Y Min, GT Hwang, JJ Choi, BD Hahn, KH Cho*, JW Lee, S, Nahm, CW Ahn*

Journal of the European Ceramic Society 40 (4), 1232-1235 (2020).

[62] Giant Self-biased Magnetoelectric Effect in Pre-biased Magnetostrictive–Piezoelectric Laminate Composites

YW Lee, B Deka, IR Yoo, DW Gwak, J Cho, HC Song, JJ Choi, BD Hahn, CW Ahn*, KH Cho*

Electronic Materials Letters 16 (2), 123-130 (2020).

[61] An easy approach to obtain large piezoelectric constant in high-quality transparent ceramics by normal sintering process in modified potassium sodium niobate ceramics

A Rahman, S Park, Y Min, GT Hwang, JJ Choi, BD Hahn, KH Cho*, S Nahm, CW Ahn*

Journal of the European Ceramic Society 40 (8), 2089-2995 (2020).

[60] High Magnetic Field Sensitivity in Ferromagnetic-Ferroelectric Composite with High Mechanical Quality Factor

YW Lee, JY Soh, IR Yoo, J Cho*, CW Ahn, JJ Choi, BD Hahn, KH Cho*

Sensors 20 (22), 6635 (2020).

[59] Cellular Auxetic Structures for Mechanical Metamaterials: A Review

PU Kelkar, HS Kim, KH Cho, JY Kwak, CY Kang, HC Song*

Sensors 20 (11), 3132 (2020).

2019

[58] Designing ferroelectric/ferromagnetic composite with giant self-biased magnetoelectric effect

B Deka, YW Lee, IR Yoo, DW Gwak, J Cho, HC Song, JJ Choi, BD Hahn, CW Ahn*, KH Cho*

Applied Physics Letters 115 (19), 192901 (2019).

[57] Effect of structural control on the magnetoelectric characteristics of piezoelectric–magnetostrictive laminate composite in resonance and off-resonance modes

KH Cho*

Electronic Materials Letters 15 (5), 555-561 (2019).

[56] Fast Abnormal Grain Growth Behavior and Electric Properties of Lead-Free Piezoelectric (K,Na)NbO3-Ba(Cu,Nb)O3 Grains through Transient Liquid Phase

JH Lim, JS Lee, SH Lee, HB Jung, C Park, CW Ahn, IR Yoo, KH Cho, DY Jeong*

Korean Journal of Materials Research 29 (4), 205-210 (2019).

[55] Effect of MnO2 and CuO Addition on Microstructure and Piezoelectric Properties of 0.96(K0.5Na0.5)0.95 Li0.05Nb0.93Sb0.07O3-0.04BaZrO3 Ceramics 

KH Cho*

Korean Journal of Materials Research 29 (3), 150-154 (2019).

2018

[54] 15-Mode piezoelectric composite and its application in a magnetoelectric laminate structure

IR Yoo, CW Ahn*, KH Cho*

Journal of Alloys and Compounds 767, 61-67 (2018).

[53] A composition design rule for crystal growth of centimeter scale by normal sintering process in modified potassium sodium niobate ceramics

A Rahman, KH Cho*, CW Ahn*, J Ryu, JJ Choi, JW Kim, WH Yoon, JH Choi, DS Park, BD Hahn

Journal of the European Ceramic Society 38 (4), 1416-1420 (2018).

[52] Seed crystal of modified potassium sodium niobate prepared by simple molten salt synthesis

A Rahman, KH Cho*, CW Ahn*, J Ryu, JJ Choi, JW Kim, WH Yoon, JH Choi, DS Park, BD Hahn

Journal of the American Ceramic Society 101 (2), 515-519 (2018). 

[51] Effect of Dimension Control of Piezoelectric Layer on the Performance of Magnetoelectric Laminate Composite

KH Cho*

Korean Journal of Materials Research 28 (11), 611-614 (2018).

2011~2016

[50] Enhanced temperature stability in <111> textured tetragonal Pb(Mg1/3Nb2/3)O3-PbTiO3 piezoelectric ceramics

Y Yan, L Yang, Y Zhou, KH Cho*, JS Heo, S Priya*

Journal of Applied Physics 118 (10), 104101 (2015)

[49] Preloaded freeplay wide-bandwidth low-frequency piezoelectric harvesters

N Sharpes, A Abdelkefi, MR Hajj, J Heo, KH Cho, S Priya

Applied Physics Letters 107 (2), 023902 (2015)

[48] Magnetoelectric laminate composite: Effect of piezoelectric layer on magnetoelectric properties

KH Cho, MI Bichurin, VM Petrov, A Bhalla, S Priya*

Ferroelectrics 473 (1), 110-128 (2014).

[47] Zigzag-shaped piezoelectric based high performance magnetoelectric laminate composite

KH Cho*, Y Yan, C Folgar, S Priya*

Applied Physics Letters 104 (22), 222901 (2014).

[46] Structure–performance relationships for cantilever-type piezoelectric energy harvesters

KH Cho*, HY Park, JS Heo, S Priya*

Journal of Applied Physics 115 (20), 204108 (2014).

[45] Structural and piezoelectric properties of MnO2-added 0.95(Na0.5K0.5)NbO3–0.05SrTiO3 ceramics

IT Seo, CH Choi, MS Jang, BY Kim, G Han, S Nahm*, KH Cho, JH Paik

Sensors and Actuators A: Physical 200, 47-50 (2013)

[44] Giant energy density in [001]-textured Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 piezoelectric ceramics

Y Yan, KH Cho, D Maurya, A Kumar, S Kalinin, A Khachaturyan, S Priya*

Applied physics letters 102 (4), 042903 (2013)

[43] Phase transition and temperature stability of piezoelectric properties in Mn-modified Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 ceramics 

Y Yan, A Kumar, M Correa, KH Cho, RS Katiyar, S Priya*

Applied Physics Letters 100 (15), 152902

[42] Low-Voltage-Driven Pentacene Thin-Film Transistors with Cross-Linked Poly (4-vinylphenol)/High-k  Bi5Nb3O15 Hybrid Dielectric for Phototransistor

S Chang, MH Chung, JH Kwon, SI Shin, TY Oh, KY Dong, SJ Lee, KH Cho, S Nahm, BK Ju*

Journal of nanoscience and nanotechnology 12 (4), 3355-3359 (2012)

[41] Piezoelectric properties and temperature stability of Mn-doped Pb(Mg1/3Nb2/3)-PbZrO3-PbTiO3 textured ceramics

Y Yan, KH Cho*, S Priya*

Applied Physics Letters 100 (13), 132908 (2012).

[40] Role of secondary phase in high power piezoelectric PMN‐PZT ceramics

Y Yan, KH Cho, S Priya*

Journal of the American Ceramic Society 94 (12), 4138-4141 (2011).

[39] Self-biased converse magnetoelectric effect

S Chul Yang, KH Cho*, CS Park, S Priya*

Applied Physics Letters 99 (20), 202904 (2011)

[38] Self‐Bias Response of Lead‐Free (1−x)[0.948 K0.5Na0.5NbO3–0.052 LiSbO3]–xNi0.8Zn0.2Fe2O4–Nickel Magnetoelectric Laminate Composites

SC Yang, CW Ahn, KH Cho, S Priya*

Journal of the American Ceramic Society 94 (11), 3889-3899 (2011).

[37] Identification and Effect of Secondary Phase in MnO2‐Doped 0.8Pb(Zr0.52Ti0.48)O3–0.2Pb(Zn1/3Nb2/3)O3 Piezoelectric Ceramics

Y Yan, KH Cho, S Priya*

Journal of the American Ceramic Society 94 (11), 3953-3959 (2011).

[36] Direct and converse effect in magnetoelectric laminate composites

KH Cho*, S Priya*

Applied Physics Letters 98 (23), 232904 (2011).

[35] Templated Grain Growth of <001>‐Textured 0.675Pb(Mg1/3Nb2/3)O3–0.325PbTiO3 Piezoelectric Ceramics for Magnetic Field Sensors

Y Yan, KH Cho, S Priya*

Journal of the American Ceramic Society 94 (6), 1784-1793 (2011).

[34] Microstructure and Electrical Properties of Amorphous Bi5Nb3O15 Films Grown on Cu/Ti/SiO2/Si Substrates Using RF Magnetron Sputtering

JS Kim, KH Cho, LS Kang, JW Sun, DS Paik, TG Seong, CY Kang, JH Kim, TH Sung, S Nahm*

IEEE Transactions on Electron Devices 58 (5), 1462-1467 (2011).

[33] Synthesis of ferroelectric PZT fibers using sol–gel technique

KH Cho, S Priya*

Materials Letters 65 (4), 775-779 (2011).

[32] Materials, Processing and Packaging-Microstructure and Electrical Properties of Amorphous Bi5Nb3O15 Films Grown on Cu/Ti/S102/Si Substrates Using RF Magnetron Sputtering

JS Kim, KH Cho, LS Kang, JW Sun, DS Paik, TG Seong, CY Kang, JH Kim, TH Sung, S Nahm*

IEEE Transactions on Electron Devices 58 (5), 1462 (2011).

2003~2010

[31] Effects of ambient gas pressure on the resistance switching properties of the NiO thin films grown by radio frequency magnetron sputtering

TG Seong, JS Kim, KH Cho, MK Yang, W Kim, JK Lee, JW Moon, J Roh, S Nahm*

Japanese Journal of Applied Physics 49 (12R), 121103 (2010).

[30] Effect of intensive and extensive loss factors on the dynamic response of magnetoelectric laminates

KH Cho, CS Park, S Priya*

Applied Physics Letters 97 (18), 182902 (2010).

[29] Self-biased magnetoelectric response in three-phase laminates

SC Yang, CS Park, KH Cho, S Priya*

Journal of Applied Physics 108 (9), 093706 (2010).

[28] Optical properties of bismuth niobate thin films studied by spectroscopic ellipsometry

YJ Kang, TH Ghong, YW Jung, JS Byun, S Kim, YD Kim, TG Seong, KH Cho, S Nahm

Thin solid films 518 (22), 6526-6530 (2010).

[27] High magnetic field sensitivity in Pb(Zr,Ti)O3-Pb(Mg1/3Nb2/3)O3 single crystal/Terfenol-D/Metglas magnetoelectric laminate composites

CS Park, KH Cho, MA Arat, J Evey, S Priya*

Journal of Applied Physics 107 (9), 094109 (2010).

[26] Investigation on the valence state of Te ions in the Bi6Ti5TeO22 thin film using X-ray photoelectron spectroscopy

CH Choi, JY Choi, KH Cho, MJ Yoo, JH Choi, S Nahm*, CY Kang, SJ Yoon, JH Kim

Journal of the European Ceramic Society 30 (2), 517-520 (2010).

[25] Leakage current mechanism and effect of oxygen vacancy on the leakage current of Bi5Nb3O15 films

KH Cho, CH Choi, JY Choi, TG Seong, S Nahm*, CY Kang, SJ Yoon, JH Kim

Journal of the European Ceramic Society 30 (2), 513-516 (2010).

[24] Crystallization and Improvement of Electrical Properties of Bi5Nb3O15 Thin Films Grown at Low Temperature

TG Seong, KH Cho, JW Sun, ME Song, DS Paik, S Nahm*, CY Kang, JH Kim

Japanese Journal of Applied Physics 48 (11R), 111401 (2009).

[23] A Flexible Amorphous Bi5Nb3O15 Film for the Gate Insulator of the Low-Voltage Operating Pentacene Thin-Film Transistor Fabricated at Room Temperature

KH Cho, TG Seong, JY Choi, JS Kim, JH Kwon, SI Shin, MH Chung, BK Ju, S Nahm*

Langmuir 25 (20), 12349-12354 (2009).

[22] Effects of oxygen pressure and Mn-doping on the electrical and dielectric properties of Bi5Nb3O15 thin film grown by pulsed laser deposition

TG Seong, KH Cho, JY Choi, S Nahm*, CY Kang, SJ Yoon, JH Kim

Journal of Physics D: Applied Physics 42 (17), 175402 (2009).

[21] Electrical properties of Bi5Nb3O15 thin film grown on TiN/SiO2/Si at room temperature for metal-Insulator-Metal capacitors

KH Cho, TG Seong, JY Choi, JS Kim, S Nahm*, CY Kang, SJ Yoon, JH Kim

IEEE electron device letters 30 (6), 614-616 (2009).

[20] Structural and Electrical Properties of Mn-Doped Bi4Ti3O12 Thin Film Grown on TiN/SiO2/Si Substrate for RF MIM Capacitors

JY Choi, LS Kang, KH Cho, TG Seong, S Nahm*, CY Kang, SJ Yoon, JH Kim

IEEE Transactions on Electron Devices 56 (8), 1631-1636 (2009).

[19] Electrical Properties of Bi5Nb3O15 Thin Film Grown on TiN/SiO2/Si at Room Temperature for Metal–Insulator–Metal Capacitors

KH Cho, TG Seong, JY Choi, JS Kim, S Nahm*, CY Kang, SJ Yoon, JH Kim

IEEE Electron Device Letters 30 (6), 614-616 (2009).

[18] Effect of oxygen vacancy and Mn-doping on electrical properties of Bi4Ti3O12 thin film grown by pulsed laser deposition

JY Choi, CH Choi, KH Cho, TG Seong, S Nahm*, CY Kang, SJ Yoon, JH Kim

Acta materialia 57 (8), 2454-2460 (2009).

[17] Structural and electrical properties of (1-x)Bi5Nb3O15-xBi4Ti3O12 ceramics and 0.96Bi5Nb3O15–0.04Bi4Ti3O12 thin films grown by pulsed laser deposition

ME Song, TG Seong, JS Kim, KH Cho, JW Sun, S Nahm*

Electronic Materials Letters 5 (1), 23-27 (2009).

[16] Microstructure and luminescent properties of Eu2W2O9 phosphors

KH Cho, KP Hong, S Nahm*, BY Jang, JS Park, SJ Yoo

Journal of electroceramics 22 (1-3), 98-104 (2009). 

[15] Electrical Properties of Formula Not Shown Thin Film Grown on Formula Not Shown at Room Temperature for Metal-Insulator-Metal Capacitors

KH Cho, TG Seong, JY Choi, JS Kim, S Nahm*, CY Kang, SJ Yoon, JH Kim

IEEE ELECTRON DEVICE LETTERS 30 (6), 614-616 (2009).

[14] Effect of CuO on the Sintering and Piezoelectric Properties of 0.95(Na0.5K0.5)NbO3–0.05SrTiO3 Lead‐Free Piezoelectric Ceramics

IT Seo, KH Cho, HY Park, SJ Park, MK Choi, S Nahm*, HG Lee, HW Kang, HJ Lee

Journal of the American Ceramic Society 91 (12), 3955-3960 (2008).

[13] Effect of CuO on the sintering temperature and piezoelectric properties of lead-free 0.95 (Na0.5K0.5)NbO3–0.05CaTiO3  ceramics

SJ Park, HY Park, KH Cho, S Nahm*, HG Lee, DH Kim, BH Choi

Materials Research Bulletin 43 (12), 3580-3586 (2008).

[12] Effect of oxygen vacancies on the electrical properties of Bi6Ti5TeO22 thin film

CH Choi, JY Choi, KH Cho, MJ Yoo, S Nahm*, CY Kang, SJ Yoon, JH Kim

Electrochemical and Solid State Letters 11 (11), G51 (2008).

[11] Electrical Properties of Amorphous Bi5Nb3O15 Thin Film for RF MIM Capacitors

KH Cho, CH Choi, KP Hong, JY Choi, YH Jeong, S Nahm*, CY Kang, SJ Yoon, HJ Lee 

IEEE electron device letters 29 (7), 684-687 (2008).

[10] Effect of CuO on the Sintering Temperature and Piezoelectric Properties of (Na0.5K0.5)NbO3 Lead‐Free Piezoelectric Ceramics

HY Park, JY Choi, MK Choi, KH Cho, S Nahm*, HG Lee, HW Kang

Journal of the American Ceramic Society 91 (7), 2374-2377 (2008).

[9] Structural and electrical properties of Bi5Nb3O15  thin films for MIM capacitors with low processing temperatures

KH Cho, CH Choi, YH Jeong, S Nahm*, CY Kang, SJ Yoon, HJ Lee

Journal of the Electrochemical Society 155 (8), G148 (2008).

[8] Investigation on the Electric Properties of  Bi1.5ZnNb1.5O7 Thin Films Grown on TiN Substrate for MIM Capacitors

KP Hong, KH Cho, YH Jeong, S Nahm*, CY Kang, SJ Yoon

IEEE electron device letters 29 (4), 334-337 (2008).

[7] Structural and electrical properties of Bi6Ti5TeO22 thin films grown on Pt/Ti/SiO2/Si substrate

CH Choi, JY Choi, KH Cho, MJ Yoo, JH Choi, S Nahm*, CY Kang, SJ Yoon, HJ Lee 

Journal of the Electrochemical Society 155 (4), G87 (2008).

[6] Microstructure and piezoelectric properties of lead-free  ceramics (1-x)(Na0.5K0.5)NbO3-xCaTiO3 

HY Park, KH Cho, DS Paik, S Nahm*, HG Lee, DH Kim

Journal of applied physics 102 (12), 124101 (2007).

[5] Low‐Temperature Sintering and Piezoelectric Properties of CuO‐Added 0.95(Na0.5K0.5)NbO3–0.05BaTiO3 Ceramics

HY Park, CW Ahn, KH Cho, S Nahm*, HG Lee, HW Kang, DH Kim, KS Park

Journal of the American Ceramic Society 90 (12), 4066-4069 (2007).

[4] Microstructure and Piezoelectric Properties of 0.95(Na0.5K0.5)NbO3–0.05SrTiO3 Ceramics

KH Cho, HY Park, CW Ahn, S Nahm*, K Uchino, SH Park, HG Lee, HJ Lee

Journal of the American Ceramic Society 90 (6), 1946-1949 (2007).

[3] Microstructure and Piezoelectric Properties of (1−x)(Na0.5K0.5)NbO3–xLiNbO3 Ceramics

HC Song, KH Cho, HY Park, CW Ahn, S Nahm*, K Uchino, SH Park, HG Lee 

Journal of the American Ceramic Society 90 (6), 1812-1816 (2007).

[2] Low temperature sintering of BaO–Sm2O3–4TiO2 ceramics 

KH Cho, JB Lim, S Nahm*, HT Kim, JH Kim, JH Paik, HJ Lee

Journal of the European Ceramic Society 27 (2-3), 1053-1058 (2006).

[1] Effect of BaCu (B2O5) on the sintering temperature and microwave dielectric properties of BaO–Ln2O3–TiO2 (Ln= Sm, Nd) ceramics 

JB Lim, KH Cho, S Nahm*, JH Paik, JH Kim 

Materials research bulletin 41 (10), 1868-1874 (2003).