Výsledky vyhledávání - "Weon-Gyu Lee"

Edge Defect-Free Anisotropic Two-Dimensional Sheets with Nearly Direct Band Gaps from a True One-Dimensional Van der Waals Nb2Se9 Material

Autor: Sudong Chae, Weon-Gyu Lee, Joonsuk Huh, Byung Joo Jeong, You Kyoung Chung, Junho Lee, Jae-Young Choi, Bum Jun Kim

Publikováno v: ACS Omega
ACS Omega, Vol 5, Iss 19, Pp 10800-10807 (2020)

Dangling-bond-free two-dimensional (2D) materials can be isolated from the bulk structures of one-dimensional (1D) van der Waals materials to produce edge-defect-free 2D materials. Conventional 2D materials have dangling bonds on their edges, which a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4eb6d7326e4f74de1459e704ecbb099
http://europepmc.org/articles/PMC7240825

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Indirect-To-Direct Band Gap Transition of One-Dimensional V2Se9: Theoretical Study with Dispersion Energy Correction

Autor: Won-Sub Yoon, Sudong Chae, Joonsuk Huh, Weon-Gyu Lee, Jae-Young Choi, You Kyoung Chung

Publikováno v: ACS Omega, Vol 4, Iss 19, Pp 18392-18397 (2019)
ACS Omega

Recently, we synthesized a one-dimensional (1D) structure of V2Se9. The 1D V2Se9 resembles another 1D material, Nb2Se9, which is expected to have a direct band gap. To determine the potential applications of this material, we calculated the band stru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0d3ed971a5eb19212ad9f00bbb5cb4f
https://doaj.org/article/6e12647b31c9420197c770c70f27b6a4

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Tuning the electronic properties of highly anisotropic 2D dangling-bond-free sheets from 1D V

Autor: Weon-Gyu, Lee, Dongchul, Sung, Junho, Lee, You Kyoung, Chung, Bum Jun, Kim, Kyung Hwan, Choi, Sang Hoon, Lee, Byung Joo, Jeong, Jae-Young, Choi, Joonsuk, Huh

Publikováno v: Nanotechnology.

True one-dimensional (1D) van der Waals materials can form two-dimensional (2D) dangling-bond-free anisotropic surfaces. Dangling bonds on surfaces act as defects for transporting charge carriers. In this study, we consider true 1D materials to be V

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::068db5da127eaf7484d661449b1d7760
https://pubmed.ncbi.nlm.nih.gov/33137798

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Highly concentrated single-chain atomic crystal LiMo3Se3 solution using ion-exchange chromatography

Autor: Young-Min Kim, Soo Min Kim, Sudong Chae, Joonsuk Huh, Seungbae Oh, Jae-Young Choi, Woo-Sung Jang, Joo Song Lee, Weon-Gyu Lee, Kyung Hwan Choi, Akhtar J. Siddiqa

Publikováno v: Chemical Communications. 54:12503-12506

Ion-exchange chromatography can be used to effectively replace the lithium ion of LiMo3Se3 with a proton. The enlargement of the Stern layer distance caused by this ion exchange improves the dispersibility of (Mo3Se3−)∞ chains and also prevents t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2416cc05f67cf8acda3d6ed3e294f865
https://doi.org/10.1039/c8cc06306k

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Effect of Underdamped Vibration on Excitation Energy Transfer: Direct Comparison between Two Different Partitioning Schemes

Autor: Inkoo Kim, Weon-Gyu Lee, Chang Woo Kim, Young Min Rhee

Publikováno v: The journal of physical chemistry. A. 123(6)

We study excitation energy transfer (EET) in a model three-site system with a mixed-quantum classical dynamics method, by focusing on the effect of an underdamped vibration. We construct two types of models where the underdamped vibration mode is inc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a64bde49f7c1125157266555b053eafc
https://pubmed.ncbi.nlm.nih.gov/30620598

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