PUBLICATIONS
2025
56. Yoonsu Park, Don-Hyung Ha*
International Journal of Hydrogen Energy 136, 2025, 392-401
55. Heesoo Jeong, Yoonsu Park, Yeongbin Lee, Wooseok Jeong, Hyeonseok Lee, Gyuhyeon Kim, Goohwan Kim, Hyungbin Son, Don-Hyung Ha*
Journal of Materials Chemistry A, 2025
54. Yun-Kun Hong, Yoonsu Park, Don-Hyung Ha*
53. Wooseok Jeong†, Hyeonseok Lee†, Yun Jae Hwang, Boeun An, Yeongbin Lee, Heesoo Jeong, Gyuhyeon Kim, Yoonsu Park, Minyoung Kim, Don-Hyung Ha* (†= equally contributed)
“Solution processing for colloidal nanoparticle thin film: From fundamentals to applications”
Advances in Colloid and Interface Science, 342, 2025, 103538
52. Wooseok Jeong†, Yun-Kun Hong†, Hoyoung Kim, Yoonsu Park, Yun Jae Hwang, Yeongbin Lee, Goohwan Kim, Hyung Bin Son, Jinwoo Lee*, Don-Hyung Ha*
(†= equally contributed)
Journal of Materials Chemistry A, 2025, Advance Article
https://doi.org/10.1039/D4TA09280E
- Inside front cover selection
51. Yoonsu Park†, Boeun An†, Hoyoung Kim, Wooseok Jeong, Hyeonseok Lee, Yeongbin Lee, Heesoo Jeong, Gyuhyeon Kim, Jong Hyun Jang*, Sung Jong Yoo*, Don-Hyung Ha* (†= equally contributed)
“Ionomer-free Co-Ru based electrode for efficient proton exchange membrane water electrolysis via synergistic catalysis”
2024
50. Yeongbin Lee†, Wooseok Jeong†, Yun Jae Hwang, Boeun An, Hyeonseok Lee, Heesoo Jeong, Gyuhyeon Kim, Yoonsu Park, Minyoung Kim and Don-Hyung Ha* (†= equally contributed)
“Basics, developments, and strategies of transition metal phosphides toward electrocatalytic water splitting: beyond noble metal catalysts”
Journal of Materials Chemistry A, 2024, 12, 28574-28594
https://doi.org/10.1039/D4TA04455J
- Front cover selection
49. Boeun An, Wooseok Jeong, Yun Jae Hwang, Hyeonseok Lee, Yeongbin Lee, Heesoo Jeong, Gyuhyeon Kim and Don-Hyung Ha*
“Kinetically controlled morphology and composition of colloidal nanoparticles: cation exchange reactions from copper sulfide to transition metal (Mn, Zn, Fe, and Co) sulfides”
48. Hyeonseok Lee†, Heesoo Jeong†, Wooseok Jeong, Yun Jae Hwang, Boeun An, Yeongbin Lee, Gyuhyeon Kim and Don-Hyung Ha* (†= equally contributed)
“Wet Chemistry Methods for Synthesizing High-Entropy Nanoparticles: A Review of the Synthesis Strategies and Various Applications”
Korean Journal of Chemical Engineering, 1-23
47. Yun Jae Hwang, Yoonsu Park, Wooseok Jeong, Minyoung Kim, Hyeonseok Lee, Boeun An, Yeongbin Lee, Heesoo Jeong, Gyuhyeon Kim, Jonghoon Choi, and Don-Hyung Ha*
“Morphology Control of Au-Ni Hybrid Nanoparticles: Exploring Heterostructures and Optical Tuning”
Inorganic chemistry 63 (25), 11660-11666
46. Eunseo Hwang, Minyoung Kim, Wooseok Lee, Yoonsu Park, Wooseok Jeong, Yun Jae Hwang, Yeongbin Lee, Shinhyo Bang, Goohawn Kim, Liane M. Moreau, Hyung Bin Son, Seoin Back, and Don-Hyung Ha*
45. Yoonsu Park, Kyeong-Rim Yeo, Yun Jae Hwang, Minyoung Kim, Wooseok Jeong,Soo-Kil Kim*, and Don-Hyung Ha*
44. Junhyuk Ahn, Doa Kim, Junhyeok Park, Yoonji Yang, Mi‐Hyun Kim, Hyung Jin Choi, Wooseok Jeong, Woo Seok Lee, Dae Yang Oh, Don‐Hyung Ha*, Sung‐Hoon Hong*, and Soong Ju Oh*
2023
43. Sanghyun Jeon, Junhyuk Ahn, Myung-Chul Jung, Ho Kun Woo, Junsung Bang, Byung Ku Jung, Seongkeun Oh, Sang Yeop Lee, Kyu Joon Lee, Taejong Paik, Don-Hyung Ha, Jae-Pyoung Ahn, Sohee Jeong, Dong Hoe Kim, Jun Hong Noh, Ho Seong Jang*, Myung Joon Han*, and Soong Ju Oh*
“Defect Engineering of Metal Halide Perovskite Nanocrystals via Spontaneous Diffusion of Ag Nanocrystals”
Small, 2023, 2307032,
42. Yun-Kun Hong, Hyun Tae Kim, Yoonsu Park, Wooseok Jeong, Minyoung Kim, Eunseo Hwang, Yun Jae Hwang, Min-Ho Lee, and Don-Hyung Ha*
“Design of Eu(TTA)3phen-incorporated SiO2 coated transition metal oxide nanoparticles for efficient luminescence and magnetic performance”
Nanoscale, 2023,15(9):4604-4611
41. Wooseok Jeong, Yoonsu Park, Yun-Kun Hong, Ildoo Kim, Hyungbin Son*, and Don-Hyung Ha*
“How Do Colloidal Nanoparticles Move in a Solution Under an Electric Field?: In Situ Light Scattering Analysis”
The Journal of Physical Chemistry Letters, 2023,14, 5, 1230–1238
40. Minyoung Kim, Hyeri Kang, Eunseo Hwang, Yoonsu Park, Wooseok Jeong, Yunjae Hwang, and Don-Hyung Ha*
“Facile colloidal synthesis of transition metal (Co, Fe, and Ni)-added Ir-W NPs for HER in acidic electrolyte”
Applied Surface Science, 2023, volume 612,1, 155862
2022
39. Yoonsu Park, Wooseok Jeong, Junhyuk Ahn, Yun-Kun Hong, Eunseo Hwang, Minyoung Kim, Yun Jae Hwang, Soong Ju Oh, and Don-Hyung Ha*
“Contact Enhancement in Nanoparticle Assemblies through Electrophoretic Deposition”
ACS Omega, 2022, 7, 45, 41021–41032
38. Jung Ho Bae, Suhyeon Kim, Junhyuk Ahn, Chanho Shin, Byung Ku Jung, Yong Min Lee, Yun Kun Hong, Woosik Kim, Don Hyung Ha, Tse Nga Ng, Jiwan Kim*, and Soong Ju Oh*
“Acid–Base Reaction-Assisted Quantum Dot Patterning via Ligand Engineering and Photolithography”
ACS Applied Materials & Interfaces, 2022, 47831-47840
37. Minyoung Kim, Yoonsu Park, Taegyeom Lee, Yun‐kun Hong, and Don‐Hyung Ha*
“Transition-metal-incorporated molybdenum phosphide nanocatalysts synthesized through post-synthetic transformation for the hydrogen evolution reaction”
International Journal of Energy Research, Volume 46, 2022, 17668-17681
36. Yoonsu Park, Hoyoung Kim, Taegyeom Lee, Yun-Kun Hong, Wooseok Jeong, Soo-Kil Kim, and Don-Hyung Ha*
“Design of Nanocatalyst for Electrode Structure: Electrophoretic Deposition of Iron Phosphide Nanoparticles to Produce a Highly Active Hydrogen Evolution Reaction Catalyst”
Chemical Engineering Journal, Volume 431, 2022, 133217
35. Taegyeom Lee, Yoonsu Park, Hoyoung Kim, Yun-Kun Hong, Eunseo Hwang, Minyoung Kim, Soo-Kil Kim*, and Don-Hyung Ha*
“Restructured Co-Ru alloys via electrodeposition for efficient hydrogen production in proton exchange membrane water electrolyzers”
International Journal of Energy Research, Volume 46, 2022, 7975-7987
34. Jonathan Schwartz, Zichao Wendy Di, Yi Jiang, Alyssa J. Fielitz, Don-Hyung Ha, Sanjaya D. Perera, Ismail El Baggari, Richard D. Robinson, Jeffrey A. Fessler, Colin Ophus, Steve Rozeveld, and Robert Hovden*
“Imaging atomic-scale chemistry from fused multi-modal electron microscopy”
npj computational materials, Volume 8, Article number 16, 2022
2021
33. Eunseo Hwang, Yoonsu Park, Jongbae Kim, Taejong Paik, and Don-Hyung Ha*
“Facile Sulfurization under Ambient Condition with Na2S to Fabricate Nanostructured Copper sulfide”
Nanomaterials, Volume 11, 2021, 2317
32. Yun-Kun Hong, Yoonsu Park, Hyeri Kang, Hyungbin Son*, and Don-Hyung Ha*
“Nanoparticle transformation from ZnO to ZnS through anion exchange with di-tert-butyl disulphide”
Dalton Transactions, Volume 50, 2021, 2192-2199
31. Ramya Chandrasekaran, Thiagarajan Madheswaran, Nagendran Tharmalingam, Rajendran JC Bose, Hansoo Park*, and Don-Hyung Ha*
“Labeling and tracking cells with gold nanoparticles"
30. Yoonsu Park, Hyeri Kang, Wooseok Jeong, Hyungbin Son*, and Don-Hyung Ha*
"Electrophoretic Deposition of Aged and Charge Controlled Colloidal Copper Sulfide Nanoparticles"
29. Hyeri Kang, Yoonsu Park, Yun-Kun Hong, Songhun Yoon, Min-Ho Lee, and Don-Hyung Ha*
"Solvent-Induced Charge Formation and Electrophoretic Deposition of Colloidal Iron Oxide Nanoparticles"
Surfaces and Interfaces, volume 22, 2021, 100815
2020
28. Hyeri Kang†, Taegyeom Lee†, Yoonsu Park, Yun-Kun Hong, Miri Choi, Jiung Cho, and Don-Hyung Ha*
"Colloidal synthetic methods of amorphous molybdenum phosphide nanoparticles for hydrogen evolution reaction catalysts"
Korean Journal of Chemical Engineering, volume 37, 2020,1419–1426
27. Yoonsu Park, Hyeri Kang, Yun-kun Hong, Geonhee Cho, Miri Choi, Jiung Cho, Don-Hyung Ha*
"Influence of the phosphorus source on iron phosphide nanoparticle synthesis for hydrogen evolution reaction catalysis"
International Journal of Hydrogen Energy, volume 45, 2020, 32780–32788
26. Geonhee Cho†, Yoonsu Park†, Hyeri Kang, Yun-kun Hong, Taegyeom Lee, and Don-Hyung Ha*
"Transition metal-doped FeP nanoparticles for hydrogen evolution reaction catalysis"
Applied Surface Science, Volume 510, 2020, 145427
2019
25.Ho Kun Woo, Min Su Kang, Taesung Park, Junsung Bang, Sanghyun Jeon, Woo Seok Lee, Junhyuk Ahn, Geonhee Cho, Dong-Kyun Ko, Younghoon Kim, Don-Hyung Ha, and Soong Ju Oh*
"Colloidal-annealing of ZnO nanoparticles to passivate traps and improve charge extraction in colloidal quantum dot solar cells"
Nanoscale, 2019,11, 17498-17505
24. Na-Won Lee, Ki Ro Yoon, Jae-Yun Lee, Yoonsu Park, Seong-Ji Pyo, Ga-Yoon Kim, Don-Hyung Ha, and Won-Hee Ryu* "Highly Conductive Off-Stoichiometric Zirconium Oxide Nanofiber with Controllable Crystalline Structures and Bandgaps and Improved Electrochemical Activities"
ACS Applied Energy Materials, Volume 2 (5), 2019, 3513-3522
23. Geonhee Cho†, Yoonsu Park†, Yun-kun Hong†, and Don-Hyung Ha* "Ion exchange: an advanced synthetic method for complex nanoparticles" Nano Convergence, volume 6, Article number: 17 (2019)
22. Lee, W. S., Kim, D., Park, B., Joh, H., Woo, H. K., Hong, Y.‐K., Kim, T.‐i., Ha, D.‐H.*, and Oh, S. J.*
"Multiaxial and Transparent Strain Sensors Based on Synergetically Reinforced and Orthogonally Cracked Hetero‐Nanocrystal Solids"
Advanced Functional Materials, 2019, 29, 1806714
2018
21. Eun Sung Kang, Yong-Tae Kim, Young-Seon Ko, Nam Hyeong Kim, Geonhee Cho, Yang Hoon Huh, Ji-Hun Kim, Jiyoung Nam, Trung Thanh Thach, David Youn, Young Dok Kim, Wan Soo Yun, William F. DeGrado, Sung Yeol Kim, Paula T. Hammond, Jaeyoung Lee, Young-Uk Kwon, Don-Hyung Ha*, and Yong Ho Kim*
"Peptide-Programmable Nanoparticle Superstructures with Tailored Electrocatalytic Activity"
ACS Nano 2018 12 (7), 6554-6562
20. Cho, G.; Kim, H.; Park, Y. S.; Hong, Y.-K.; Ha, D.-H.*
"Phase transformation of iron phosphide nanoparticles for hydrogen evolution reaction electrocatalysis"
International Journal of Hydrogen Energy, Volume 24, 2018, 11326-11334
19. Park, H.; Choe, S.; Kim, H.; Kim, D.-K.; Cho, G.; Park, Y.; Jang, J. H.; Ha, D.-H.*; Ahn, S. H.*; Kim, S.-K.*
"Direct fabrication of gas diffusion cathode by pulse electrodeposition for proton exchange membrane water electrolysis"
Applied Surface Science 2018, 444, 303-311
18. Hong, Y.-K.; Cho, G.; Park, Y.; Oh, S.; Ha, D.-H.*, "Trioctylphosphine-assisted morphology control of ZnO nanoparticles"
Nanotechnology 2018, 29 (22), 225602
Ho Kun Woo, Min Su Kang, Taesung Park, Junsung Bang, Sanghyun Jeon, Woo Seok Lee, Junhyuk Ahn, Geonhee Cho, Dong-Kyun Ko, Younghoon Kim, Don-Hyung Ha, Soong Ju Oh*
"Colloidal-annealing of ZnO nanoparticles to passivate traps and improve charge extraction in colloidal quantum dot solar cells"
Nanoscale, 2019,11, 17498-17505
Na-Won Lee, Ki Ro Yoon, Jae-Yun Lee, Yoonsu Park, Seong-Ji Pyo, Ga-Yoon Kim, Don-Hyung Ha, and Won-Hee Ryu*
"Highly Conductive Off-Stoichiometric Zirconium Oxide Nanofiber with Controllable Crystalline Structures and Bandgaps and Improved Electrochemical Activities"
ACS Applied Energy Materials, Volume 2 (5), 2019, 3513-3522
Geonhee Cho†, Yoonsu Park†, Yun-kun Hong†, Don-Hyung Ha*
"Ion exchange: an advanced synthetic method for complex nanoparticles"
Nano Convergence, volume 6, Article number: 17 (2019)
Lee, W. S., Kim, D., Park, B., Joh, H., Woo, H. K., Hong, Y.‐K., Kim, T.‐i.,
Ha, D.‐H.*, Oh, S. J.*
"Multiaxial and Transparent Strain Sensors Based on Synergetically Reinforced and Orthogonally Cracked Hetero‐Nanocrystal Solids"
Advanced Functional Materials, 2019, 29, 1806714
~2017
17. Park, H.; Choi, J.; Kim, H.; Hwang, E.; Ha, D.-H.; Ahn, S. H.; Kim, S.-K., "AgIn dendrite catalysts for electrochemical reduction of CO2 to CO"Applied Catalysis B: Environmental 2017, 219, 123-131.
16. A. Nelson†, D.-H. Ha†, and R.D. Robinson, “Selective Etching of Copper Sulfide Nanoparticles and Heterostructures through Sulfur Abstraction: Phase Transformations and Optical Properties,” Chem. Mater. 28, 8530-8541 (2016) (†= equally contributed)
14. D.-H. Ha,† T. Ly, † J.M. Caron, H. Zhang, K.E. Fritz, and R.D. Robinson, “A General Method for High-Performance, Additive-Free Li-Ion Battery Electrodes from Colloidal Nanoparticles: The Case of MnS, Cu2-xS, and Ge,” ACS Appl. Mater. Interfaces 7, 25053 (2015) (†= equally contributed)
13. D.-H. Ha, A.H. Caldwell, M.J. Ward, S. Honrao, K. Mathew, R. Hovden, M.K.A. Koker, D.A. Muller, R.G. Hennig, and R.D. Robinson, “Solid-Solid Phase Transformations Induced through Cation Exchange and Strain, in 2D Heterostructured Copper Sulfide Nanocrystals,” Nano Lett. 14, 7090 (2014)
12. D.-H. Ha, L.M. Moreau, S. Honrao, R.G. Hennig, and R.D. Robinson, “The Oxidation of Cobalt Nanoparticles into Kirkendall-Hollowed CoO and Co3O4: the Diffusion Mechanisms and Atomic Structural Transformations,” J. Phys. Chem. C. 117, 14303 (2013) http://dx.doi.org/10.1021/jp402939e
- Cover selection
11. L.M. Moreau,† D.-H. Ha,† H. Zhang, R. Hovden, D.A. Muller, and R.D. Robinson, "Defining Crystalline/Amorphous Phases of Nanoparticles through X-ray Absorption Spectroscopy and X-ray Diffraction: The Case of Nickel Phosphide," Chem. Mater. 25, 2394 (2013) (†= equally contributed)
10. D.-H. Ha, M.A. Islam and R.D. Robinson, "Binder-Free and Carbon-Free Nanoparticle Batteries: A Method for Nanoparticle Electrodes without Polymeric Binders or Carbon Black," Nano Lett. 12, 5122 (2012)
9. L.M. Moreau,† D.-H. Ha,† C.R. Bealing, H. Zhang, R.G. Hennig and R.D. Robinson, "Unintended Phosphorus Doping of Nickel Nanoparticles during Synthesis with TOP: A Discovery through Structural Analysis," Nano Lett. 12, 4530 (2012) (†= equally contributed)
http://dx.doi.org/10.1021/nl301642g
- Highlighted in NSF research (www.research.gov)
8. D.-H. Ha, L.M. Moreau, C.R. Bealing, H. Zhang, R.G. Hennig and R.D. Robinson, "The structural evolution and diffusion during the chemical transformation from cobalt to cobalt phosphide nanoparticles,"
J. Mater. Chem. 21, 11498 (2011)
http://dx.doi.org/10.1039/C1JM10337G
- Highlighted as a ‘hot article’ for Journal of Materials Chemistry (http://blogs.rsc.org/jm/)
- Inside cover selection
7. B.D. Levin, E. Padgett, C.C. Chen, M.C. Scott, R. Xu, W. Theis, Y. Jiang, Y. Yang, C. Ophus, H. Zhang, D.-H. Ha, D. Wang, Y. Yu, H.D. Abruña, R.D. Robinson, P. Ercius, L.F. Kourkoutis, J. Miao, D.A. Muller, R. Hovden, “Nanomaterial Datasets to Advance Tomography in Scanning Transmission Electron Microscopy” Scientific Data 3, (2016) http://dx.doi.org/10.1038/sdata.2016.41
6. O.O. Otelaja, D.-H. Ha, T. Ly, H. Zhang, and R.D. Robinson, “Highly Conductive Cu2-xS Nanoparticle Films through Room Temperature Processing, and an Order of Magnitude Enhancement of Conductivity via Electrophoretic Deposition” ACS Appl. Mater. Interfaces 6, 18911 (2014) http://dx.doi.org/10.1021/am504785f
5. A.H. Caldwell, D.-H.Ha, X. Ding, and R.D. Robinson, “Analytical modeling of localized surface plasmon resonance in heterostructure copper sulfide nanocrystals” J. Chem. Phys. 141, 164125 (2014) http://dx.doi.org/10.1063/1.4897635
4. H. Zhang, L.V. Solomon, D.-H. Ha, S. Honrao, R.G. Hennig, and R.D. Robinson, “(NH4)2S, A Highly Reactive Molecular Precursor for Low Temperature Anion Exchange Reactions in Nanoparticles,” Dalton Trans. 42, 12596 (2013) http://dx.doi.org/10.1039/C3DT50803J
3. M. Aksit, B.C. Hoselton, H. Kim, D.-H. Ha, R.D. Robinson. “Synthesis and Properties of Electrically Conductive, Ductile, Extremely Long (~ 50 μm) Nanosheets of KxCoO2·yH2O” ACS Appl. Mater. Interfaces 5, 8998 (2013) http://dx.doi.org/10.1021/am402064g
2. H. Zhang, D.-H. Ha, R. Hovden, L.F. Kourkoutis and R.D. Robinson, "Controlled Synthesis of Uniform Cobalt Phosphide Hyperbranched Nanocrystals Using Tri-n-octylphosphine Oxide as a Phosphorus Source," Nano Lett. 11, 188 (2011) http://dx.doi.org/10.1021/nl103400a
1. K. S. Chang, H. Kim, D. K. Park, T. K. Ko, M. C. Ahn, D.-H. Ha, J.-B. Song, S. J. Lee, H. M. Kim and H. Lee, "Joint Characteristics of YBCO Coated Conductor by Removing a Metallic Stabilizer," IEEE Trans. Appl. Supercond. 18, 1220 (2008) http://dx.doi.org/10.1109/TASC.2008.920811
PATENTS
하돈형, 김수길, 박윤수, 김호영, 이태겸, 정우석, 홍윤건, "전기영동증착법을 이용한 나노입자 3차원 구조체 증착 방법 및 이에 의해 제조된 수소 발생 반응용 전극 (Nanoparticle 3D structure deposition method using electrophoretic deposition method and electrode for hydrogen evolution reaction prepared thereby)", 특허출원 (10-2021-0156472)
R.D. Robinson and D.-H. Ha, “Binder Free and Carbon Free Nanoparticle Containing Component, Method and Applications” (Publication number: WO2014025743 A1, US20150188128 A1, Application number: US 14/419,735, PCT number: PCT/US2013/053735, Publication date: 07/02/2015)
R.D. Robinson and D.-H. Ha, “Heterostructure Nanostructure Including 2D Atomic Phase Composition, Related Methods and Applications,” U.S. Provisional Application No. 62/058,728, filed 10/2/2014.