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Home of Nanoelectronic Materials

Our main research interest is to develop, modify and understand nano-material systems that are applicable to semiconductor devices.

For this, we largely focus on the synthesis of electrically conductive molecular crystals, organic/inorganic thin films, and 2D materials.

Research

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Organic semiconductor

Radical crystal

Chemical doping

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Vapor phase chemical reactions

Metal organic frameworks

Covalent organic frameworks

Lattice-doped graphene

Twisted bilayer graphene

Recent Publications

  • ​Jeevanandham, S.; Maji, A.; Acharya, A.; Kumari, N., Gu, B. S.; Yoon, Y.; Lee, D.; Choi, H. C.; Kim, H. W.; Yun, T.; Kumar, A.*; Lee, I. S.* ACS Nano 2025, 19, 6142-6151. Ligand-Shell Cooperativity in a Bilayer Silica-Sandwiched Mixed-Metals Nanocatalyst Design for Absolute Selectivity Switch.
     

  • ​Zhang, W.; Ohtsu, J.*; Suzuki, H.; Shimizu, A.; Shimada, T.; Adachi, K.; Hashizume, D.; Koo, J. Y.; Choi, H. C.; Wada, Y.; Usov, P. M.*; Kawano, M.* Chem. Mater. 2025, 37, 415−428. Synthesis and Characterization of Ruthenium and Osmium Metal−Organic Frameworks with a Pyrazine Ligand: Two-Dimensional Analogues of the Creutz−Taube Ion.
     

  • Kim, H. S.; Koo, J. Y.; Choi, H. C.* Cryst. Growth Des. 2025, 25, 171-175. Mechanical Grinding Effect: Facile Sublimation and Its Application in Molecular Cocrystal Synthesis by Physical Vapor Transport.
     

  • Choe, M.; Park, S. S.*; Choi, H. C.* Inorg. Chem. 2024, 63, 22662−22666. Elucidation of the Transformation of Coordination Polymer Intermediates into 2D Metal–Organic Framework Films during Chemical Vapor Deposition.

 

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  • Jeevanandham, S.; Maji, A.; Acharya, A.; Kumari, N.; Gu. B. S.; Yoon, Y. K.; Choi, H. C.; Kumar, A.*; Lee, I. S.* Adv. Func. Mater. 2023, 2311752. Electrochemical Ultrathin Metal-Atomic Layer Deposition for Silica Microenvironment-Assisted Cu-Based Catalysis.

  • Acharya, A.; Mete, T. B.; Kumari, N.; Yoon, Y. K.; Jeong, H. Y.; Jang, T. H. Song, B. J.; Choi, H. C.; Han, J. W.; Pang, Y. S.; Yun, Y. J.; Kumar, A.*; Lee, I. S.* Nat. Commun. 2023, 14, 7667. Ultrathin Covalent Organic Overlayers on Metal Nanocrystals for Highly Selective Plasmonic Photocatalysis.

  • Yoon, Y.; Koo, J. Y.; Choi, H. C.* Small Struct. 2023, 4, 2300134. In situ Growth Transition Towards Helical Crystals of Achiral Molecules. <Inside Front Cover>

  • Kim, D. G.; Lee, S.; Park, J. W.; Lee, J. H.; Choi, H. C.; Kim, K. P.; Ryu, S. M.* Nat. Commun. 2023, 14, 2736. In-Plane and Out-of-Plane Excitonic Coupling in 2D Molecular Crystals.

  • Kim, H. S.; Koo, J. Y.; Choi, H. C.* Chem. Mater. 2023, 35, 4, 1762–1768. Selective reduction approach in cocrystal systems for highly conducting organic radical crystals.  <Supplementary Cover>

 

  • ​Choe, M.; Koo, J. Y.; Park, I.; H. Ohtsu.; Shim. J.*; Choi, H. C.*; Park, S. S.* J. Am. Chem. Soc. 2022, 144, 16726-16731. Chemical vapor deposition of edge-on oriented 2D conductive metal-organic framework thin films.

  • ​Cho, H.; Son, Y.; Choi, H. C.* Nano Lett. 2022, 22, 3323-3327. Rotation of graphene on Cu during chemical vapor deposition and its application to control the stacking angle of bilayer graphene.

Group Photo

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News

  • Seunghyun has joined as new members of NMRL group. Welcome! 2025.02.17.
     

  • A paper to which Youngkwan (Dr. Yoon) contributed has been accepted for publication in ACS Nano. Congratulations ! 2025.01.29.
     

  • A paper to which Jin Young (Dr. Koo) contributed has been accepted for publication in Chem. Mater. Congratulations ! 2025.01.03.
     

  • Hye soo (Dr. Kim)'s paper entitled "Mechanical Grinding Effect: Facile Sublimation and Its Application in Molecular Cocrystal Synthesis by Physical Vapor Transport" has been accepted in Crystal Growth & Design. Congratulations! 2024.12.21.
     

  • Hye soo (Dr. Kim) and Myeonggeun (Dr. Choe) have successfully defended their Ph. D. thesis. Congratulations! 2024.12.17.
     

  • Myeonggeun's paper entitled "Elucidation of the Transformation of Coordination Polymer Intermediates into 2D Metal–Organic Framework Films during Chemical Vapor Deposition" has been accepted in Inorganic Chemistry. Congratulations! 2024.11.19.

  • Yuri has joined as new members of NMRL group. Welcome! 2024.08.26.
     

  • Changmin won the "Superior presentation winner"  at the symposium of the Inorganic Division of the Korean Chemical Society.  Congratulations! 2024.06.28.
     

  • Hye soo won the "BKCS poster award"  at the symposium of the Inorganic Division of the Korean Chemical Society.  Congratulations! 2024.06.28.
     

  • Myeonggeun and Hyeonwoo's paper entitled "Vapor-phase synthesis of MOF films" has been accepted in BKCS. Congratulations! 2024.05.07.​​

Nanoscale Materials Research Laboratory

Department of Chemistry, Pohang University of Science and Technology (POSTECH)

Tel(Lab) : +82) 54-279-5524, +82) 54-279-8156

Fax : +82) 54-279-8127

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