FIELD

Research Overview

Mixed Protonic–Electronic Conductors (MPECs)

Design Principles

  • Metal centers
  • Ligands
  • Functional groups

Hydrogen-Bonded Coordination Polymers

H+ transport e− transport Proton–electron coupling

Characterization

  • Structure
  • Transport
  • Theoretical modeling

Applications

  • Neuromorphic devices
  • Adaptive sensing
  • …and more

Establishing Design Principles & Structure–Property Correlations

Crystal Structure of Coordination Polymer

Design Principles

We strategically design and synthesize novel hydrogen-bonded coordination polymers (HBCPs) by tuning metal centers, ligands, and functional groups.

금속 중심체, 리간드, 기능기를 정밀하게 조절하여 새로운 수소결합 배위 고분자(HBCPs)를 전략적으로 설계하고 합성합니다.

Mixed Protonic-Electronic Conductivity

Characterization

We investigate the structure and the mixed transport of protons and electrons, combined with theoretical modeling, to elucidate the fundamental mechanisms of proton-electron coupling within HBCPs.

구조 분석, 양성자·전자 혼합 전도 측정, 이론 모델링을 통해 HBCPs 내 양성자-전자 결합의 근본적인 원리를 규명합니다.

Chemical neuromodulation for neuromorphic and sensing applications

Applications

We explore advanced applications of these materials in next-generation functional platforms, such as neuromorphic and adaptive sensing devices.

개발된 소재를 뉴로모픽 소자 및 적응형 센싱 소자 등 차세대 고기능성 플랫폼에 응용합니다.

Publication List

Google Scholar ORCID
  1. Long-term Synaptic Plasticity via Vehicular Proton-Electron Coupled Transport in a Single-Crystalline Hydrogen-bonded Coordination Polymer. in preparation
  2. One-pot synthesis of PtNi/carbon composites derived from polytetrahydrofuran for bifunctional alkaline HER and ORR. Kim, J.; Jang, E.; Heo, H.; Kang, B.; Song, I.*; Kim, M.-G.*; Yoon, S. M.* Bull. Korean Chem. Soc. 2026, 47, 999–1006.
  3. Giant Conductivity Modulation and Chemical Neuromodulation via Proton-Electron Coupling in a Hydrogen-Bonded Coordination Polymer. Park, K.; Park, J.; Ju, H.; Arafat, N.; Lee, B. G.; Oh, J.; Jang, E.; Lim, H.*; Yoon, S. M.*; Lim, D.-W.; Song, I.* Adv. Sci. 2026, 13, e75420.
  4. Photochemical Synthesis of cis-M(CO)4(pyrazine)2 Complexes (M = Cr, Mo, W) for Reversible CO Sorption with Visual Color Indication. Kim, M.; Arafat, N.; Ju, H.*; Song, I.* J. Cryst. Growth 2026, 677, 128472.
  5. Proton-electron Coupling and Mixed Conductivity in a Hydrogen-bonded Coordination Polymer. Park, M.; Ju, H.; Oh, J.; Park, K.; Lim, H.*; Yoon, S. M.*; Song, I.* Nat. Commun. 2025, 16, 1316.Selected as Editors’ Highlights in Materials Chemistry (Among the Top 50 Papers)
  6. Adhesive-free Template Stripping of Gold Thin Films for Metallic Ultraflat Surface. Park, M.; Song, I.* J. Korean Chem. Soc. 2024, 68, 243.
  7. Facile Synthesis of Iodine Variants-Incorporated Lithium Perrhenate Crystal and Film: Resistive Switching Device and Synaptic Behavior. Lee, S.; Ahn, J.-G.; Jang, E.; Kim, J.; Hyun, G.; Kim, H.; Park, J.; Song, I.*; Lim, H.*; Yoon, S. M.* J. Alloys Compd. 2024, 1002, 175423.
  8. Novel Electrodes and Gate Dielectrics for Field-Effect Transistors Based on Two-Dimensional Materials. Song, I.* Bull. Korean Chem. Soc. 2023, 44, 495–506.Invited for Special Issue 'Emerging Investigator'
  9. Generalized synthesis of magnetic cobalt (II) coordination polymers with halide and N-heterocycle ligands. Park, J.; Song, I.* J. Korean Chem. Soc. 2022, 66, 433–435.
  10. Tabletop Fabrication of High-Performance MoS2 Field-Effect Transistors. Cho, U.; Kim, S.; Shin, C. Y.; Song, I.* ACS Omega 2022, 7, 21220–21224.Covered in the News
  11. Anisotropic Electrical Conductivity of a Single-Crystalline Oxo-Bridged Cr4Mo2 Heterometallic Complex. Koo, J. Y.; Oh, J.; Hyun, G.; Choi, H. C.*; Song, I.*; Yoon, S. M.* Inorg. Chem. 2021, 60, 13262–13268.
  12. The Magnetism of Metal-Organic Frameworks for Spintronics. Lee, K.; Park, J.; Song, I.*; Yoon, S. M.* Bull. Korean Chem. Soc. 2021, 42, 1170–1183.Cover Article
  13. Fast Synthesis of Ligand-Coordinated Chromium (II) Acetate with Quadruple Bonds by Seed-Mediated Growth. Song, I.* Appl. Sci. Converg. Technol. 2021, 30, 95–97.
  14. Growth of Monolayer and Multilayer MoS2 Films by Selection of Growth Mode: Two Pathways via Chemisorption and Physisorption of an Inorganic Molecular Precursor. Ahn, C.; Park, Y.; Shin, S.; Ahn, J.-G.; Song, I.; An, Y.; Jung, J.; Kim, C. S.; Kim, J. H.; Bang, J.; Kim, D.; Baik, J.; Lim, H. ACS Appl. Mater. Interfaces 2021, 13, 6805–6812.
  15. Growth and Interlayer Engineering of 2D Layered Semiconductors for Future Electronics. Song, C.; Noh, G.; Kim, T. S.; Kang, M.; Song, H.; Ham, A.; Jo, M.; Cho, S.; Chai, H.-J.; Cho, S. R.; Cho, J.; Park, J.; Song, S.; Song, I.; Bang, S.; Kwak, J. Y.; Kang, K. ACS Nano 2020, 14, 16266–16300.
  16. Surface Alloys in Nanochemistry: Catalysis and Synthesis. Song, I.* New J. Chem. 2020, 44, 18525–18529.Cover Article
  17. Gram-Scale Synthesis of Quadruply Bonded Chromium (II) Acetate with Axial Ligands by Ligand Vapor Diffusion. Park, J.; Song, I.* Appl. Sci. Converg. Technol. 2020, 29, 99–102.
  18. Fast and Facile Biodegradation of Polystyrene by the Gut Microbial Flora of Plesiophthalmus Davidis Larvae. Woo, S.; Song, I.; Cha, H. J.* Appl. Environ. Microbiol. 2020, 86, e01361-20.
  19. Facile and Rapid Synthesis of Crystalline Quadruply Bonded Cr(ii) Acetate Coordinated with Axial Ligands. Song, I.; Koo, J.; Yoon, S. M.* RSC Adv. 2019, 9, 24319–24324.
  20. Revealing the Role of Gold in the Growth of Two-Dimensional Molybdenum Disulfide by Surface Alloy Formation. Song, I.; Choi, H. C.* Chem. Eur. J. 2019, 25, 2337–2344.Appears in Hot Topic: Gold
  21. Transfer-Free, Large-Scale Growth of High-Quality Graphene on Insulating Substrate by Physical Contact of Copper Foil. Song, I.; Park, Y.; Cho, H.; Choi, H. C.* Angew. Chem. Int. Ed. 2018, 57, 15374–15378.
  22. Highly Reproducible Alkali Metal Doping System for Organic Crystals through Enhanced Diffusion of Alkali Metal by Secondary Thermal Activation. Lee, J.; Park, C.; Song, I.; Koo, J. Y.; Yoon, T.; Kim, J. S.; Choi, H. C.* Sci. Rep. 2018, 8, 7617.
  23. Single-Component-Based White Light Photoluminescence Emission via Selective Photooxidation in an Organic-Polymer Hybrid System. Lee, M.; Song, I.; Hong, M.; Koo, J. Y.; Choi, H. C.* Adv. Funct. Mater. 2018, 28, 1703509.
  24. Rapid Photochemical Synthesis of Sea-Urchin-Shaped Hierarchical Porous COF-5 and Its Lithography-Free Patterned Growth. Kim, S.; Park, C.; Lee, M.; Song, I.; Kim, J.; Lee, M.; Jung, J.; Kim, Y.; Lim, H.; Choi, H. C.* Adv. Funct. Mater. 2017, 27, 1700925.
  25. Broken-Symmetry Quantum Hall States in Twisted Bilayer Graphene. Kim, Y.; Park, J.; Song, I.; Watanabe, K.; Taniguchi, T.; Choi, H. C.; Lee, D. S.; Jung, S.; Kim, J. S.* Sci. Rep. 2016, 6, 38068.
  26. Large-Area Two-Dimensional Bismuth Selenide Crystals Synthesized by Solution-Based Control of the Nucleation Environment. Pradhan, M.#; Song, I.#; Lee, J.; Lee, M.; Park, C.; Choi, H. C.* RSC Adv. 2016, 6, 106960–106963.
  27. Unique Crystallization of Fullerenes: Fullerene Flowers. Kim, J.; Park, C.; Song, I.; Lee, M.; Kim, H.; Choi, H. C.* Sci. Rep. 2016, 6, 32205.
  28. Improvement of Work Function and Hole Injection Efficiency of Graphene Anode Using CHF3 Plasma Treatment. Cho, H.; Kim, S. D.; Han, T.-H.; Song, I.; Byun, J.-W.; Kim, Y.-H.; Kwon, S.; Bae, S.-H.; Choi, H. C.; Ahn, J.-H.; Lee, T.-W.* 2D Mater. 2015, 2, 014002.
  29. Synthesis and Properties of Molybdenum Disulphide: From Bulk to Atomic Layers. Song, I.; Park, C.; Choi, H. C.* RSC Adv. 2015, 5, 7495–7514.Invited Review. Selected as 'RSC Advances 10th Anniversary Collection'
  30. Patternable Large-Scale Molybdenum Disulfide Atomic Layers Grown by Gold-Assisted Chemical Vapor Deposition. Song, I.; Park, C.; Hong, M.; Baik, J.; Shin, H.-J.; Choi, H. C.* Angew. Chem. Int. Ed. 2014, 53, 1266–1269. Cover Article
  31. Copper-Vapor-Assisted Chemical Vapor Deposition for High-Quality and Metal-Free Single-Layer Graphene on Amorphous SiO2 Substrate. Kim, H.#; Song, I.#; Park, C.; Son, M.; Hong, M.; Kim, Y.; Kim, J. S.; Shin, H.-J.; Baik, J.; Choi, H. C.* ACS Nano 2013, 7, 6575–6582.