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  1. Article

    Open Access

    Fabrication of p-type 2D single-crystalline transistor arrays with Fermi-level-tuned van der Waals semimetal electrodes

    High-performance p-type two-dimensional (2D) transistors are fundamental for 2D nanoelectronics. However, the lack of a reliable method for creating high-quality, large-scale p-type 2D semiconductors and a suitab...

    Seunguk Song, Aram Yoon, Sora Jang, Jason Lynch, Jihoon Yang in Nature Communications (2023)

  2. Article

    Open Access

    Atomic transistors based on seamless lateral metal-semiconductor junctions with a sub-1-nm transfer length

    The edge-to-edge connected metal-semiconductor junction (MSJ) for two-dimensional (2D) transistors has the potential to reduce the contact length while improving the performance of the devices. However, typica...

    Seunguk Song, Aram Yoon, Jong-Kwon Ha, Jihoon Yang, Sora Jang in Nature Communications (2022)

  3. Article

    Open Access

    In-situ formation of co particles encapsulated by graphene layers

    The process of encapsulating cobalt nanoparticles using a graphene layer is mainly direct pyrolysis. The encapsulation structure of hybrids prepared in this way improves the catalyst stability, which greatly r...

    Minjeong Lee, Gyutae Kim, Gyu Hyun Jeong, Aram Yoon, Zonghoon Lee in Applied Microscopy (2022)

  4. Article

    Open Access

    Author Correction: Dynamic transformations of cubic copper catalysts during CO2 electroreduction and its impact on catalytic selectivity

    Philipp Grosse, Aram Yoon, Clara Rettenmaier, Antonia Herzog in Nature Communications (2021)

  5. Article

    Open Access

    Dynamic transformation of cubic copper catalysts during CO2 electroreduction and its impact on catalytic selectivity

    To rationally design effective and stable catalysts for energy conversion applications, we need to understand how they transform under reaction conditions and reveal their underlying structure-property relatio...

    Philipp Grosse, Aram Yoon, Clara Rettenmaier, Antonia Herzog in Nature Communications (2021)

  6. Article

    Open Access

    Formation of two-dimensional MoS2 and one-dimensional MoO2 nanowire hybrids

    Oxidation of two-dimensional (2D) transition metal dichalcogenides have received great interests because it significantly influences their electrical, optical, and catalytic properties. Monoclinic MoO2 nanowires ...

    Aram Yoon, Zonghoon Lee in Applied Microscopy (2019)

  7. Article

    Open Access

    Dedicated preparation for in situ transmission electron microscope tensile testing of exfoliated graphene

    Graphene, which is one of the most promising materials for its state-of-the-art applications, has received extensive attention because of its superior mechanical properties. However, there is little experiment...

    Kangsik Kim, Jong Chan Yoon, Jaemin Kim, Jung Hwa Kim, Suk Woo Lee in Applied Microscopy (2019)

  8. Article

    Open Access

    Dynamics of Transformation from Platinum Icosahedral Nanoparticles to Larger FCC Crystal at Millisecond Time Resolution

    Atomic motion at grain boundaries is essential to microstructure development, growth and stability of catalysts and other nanostructured materials. However, boundary atomic motion is often too fast to observe ...

    Wenpei Gao, Jianbo Wu, Aram Yoon, ** Lu, Liang Qi, Jianguo Wen in Scientific Reports (2017)