306 citations · 817 across the 15 of their papers we have counts for
15 papers
Type-II Red Phosphorus: Wavy Packing of Twisted Pentagonal Tubes
Jun-Yeong Yoon, Yangjin Lee, Dong-Gyu Kim +11
Elemental phosphorus exhibits fascinating structural varieties and versatile properties. The unique nature of phosphorus bonds can lead to the formation of extremely complex struct…
Electrical transport properties driven by unique bonding configuration in gamma-GeSe
Jeongsu Jang, Joonho Kim, Dongchul Sung +11
Group-IV monochalcogenides have recently shown great potential for their thermoelectric, ferroelectric, and other intriguing properties. The electrical properties of group-IV monoc…
In situ Imaging of an Anisotropic Layer-by-Layer Phase Transition in Few-Layer MoTe2
Chia-Hao Lee, Huije Ryu, Gillian Nolan +9
Understanding the phase transition mechanisms in two-dimensional (2D) materials is a key to precisely tailor their properties at the nanoscale. Molybdenum ditelluride (MoTe2) exhib…
Atomically Sharp, Closed Bilayer Phosphorene Edges by Self-Passivation
Sol Lee, Yangjin Lee, Li Ping Ding +3
Two-dimensional (2D) crystals' edge structures not only influence their overall properties but also dictate their formation due to edge-mediated synthesis and etching processes. Ed…
In-Plane and Out-of-Plane Excitonic Coupling in 2D Molecular Crystals
Dogyeong Kim, Sol Lee, Jiwon Park +4
Understanding the nature of molecular excitons in low-dimensional molecular solids is of paramount importance in fundamental photophysics and various applications such as energy ha…
STEM image analysis based on deep learning: identification of vacancy defects and polymorphs of
Kihyun Lee, Jinsub Park, Soyeon Choi +9
Scanning transmission electron microscopy (STEM) is an indispensable tool for atomic-resolution structural analysis for a wide range of materials. The conventional analysis of STEM…
High Density, Localized Quantum Emitters in Strained 2D Semiconductors
Gwangwoo Kim, Hyong Min Kim, Pawan Kumar +14
Two-dimensional chalcogenide semiconductors have recently emerged as a host material for quantum emitters of single photons. While several reports on defect and strain-induced sing…
γ-GeSe:a new hexagonal polymorph from group IV-VI monochalcogenides
Sol Lee, Joong-Eon Jung, Han-gyu Kim +12
The family of group IV-VI monochalcogenides has an atomically puckered layered structure, and their atomic bond configuration suggests the possibility for the realization of variou…
Single-Crystalline Metallic Films Induced by van der Waals Epitaxy on Black Phosphorus
Yangjin Lee, Han-gyu Kim, Tae Keun Yun +11
The properties of metal-semiconductor junctions are often unpredictable because of non-ideal interfacial structures, such as interfacial defects or chemical reactions introduced at…
Unidirectional Alignment of AgCN Microwires on Distorted Transition Metal Dichalcogenide Crystals
Myeongjin Jang, Hyeonhu Bae, Yangjin Lee +6
Van der Waals epitaxy on the surface of two-dimensional (2D) layered crystals has gained significant research interest for the assembly of well-ordered nanostructures and fabricati…
Optical phonons of SnSe(1-x)Sx layered semiconductor alloys
Tharith Sriv, Thi Minh Hai Nguyen, Yangjin Lee +5
The evolution of the optical phonons in layered semiconductor alloys SnSe1-xSx is studied as a function of the composition by using polarized Raman spectroscopy with six different…
Intense Dark Exciton Emission from Strongly Quantum Confined CsPbBr Nanocrystals
Daniel Rossi, Xiaohan Liu, Yangjin Lee +6
Dark ground state exciton in semiconductor nanocrystals has been a subject of much interest due to its long lifetime attractive for applications requiring long-lived electronic or…
Fabrication and Imaging of Monolayer Phosphorene with Preferred Edge Configurations via Graphene-Assisted Layer-by-Layer Thinning
Yangjin Lee, Sol Lee, Jun-Yoeong Yoon +3
Phosphorene, a monolayer of black phosphorus (BP), is an elemental two-dimensional material with interesting physical properties, such as high charge carrier mobility and exotic an…
Atomic-scale imaging of few-layer black phosphorus and its reconstructed edge
Yangjin Lee, Jun-Yeong Yoon, Declan Scullion +4
Black phosphorus (BP) has recently emerged as an alternative 2D semiconductor owing to its fascinating electronic properties such as tunable bandgap and high charge carrier mobilit…
Selective metal deposition at graphene line defects by atomic layer deposition
Kwanpyo Kim, Han-Bo-Ram Lee, Richard W. Johnson +7
One-dimensional defects in graphene have strong influence on its physical properties, such as electrical charge transport and mechanical strength. With enhanced chemical reactivity…