Search Results - "Hwang, Jeongwoon"

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  1. 1

    Enhancing infrared emissivity of thin films through multilayer configurations by Hwang, Jeongwoon

    Published in Journal of the Korean Physical Society (01-12-2023)
    “…We computationally investigate the infrared (IR) emissivity of single, double, and triple-layer thin films for efficient heat dissipation in extreme…”
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    Journal Article
  2. 2

    ZnO composite nanolayer with mobility edge quantization for multi-value logic transistors by Lee, Lynn, Hwang, Jeongwoon, Jung, Jin Won, Kim, Jongchan, Lee, Ho-In, Heo, Sunwoo, Yoon, Minho, Choi, Sungju, Van Long, Nguyen, Park, Jinseon, Jeong, Jae Won, Kim, Jiyoung, Kim, Kyung Rok, Kim, Dae Hwan, Im, Seongil, Lee, Byoung Hun, Cho, Kyeongjae, Sung, Myung Mo

    Published in Nature communications (30-04-2019)
    “…A quantum confined transport based on a zinc oxide composite nanolayer that has conducting states with mobility edge quantization is proposed and was applied…”
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  3. 3

    Progress on first-principles-based materials design for hydrogen storage by Park, Noejung, Choi, Keunsu, Hwang, Jeongwoon, Kim, Dong Wook, Kim, Dong Ok, Ihm, Jisoon

    “…This article briefly summarizes the research activities in the field of hydrogen storage in sorbent materials and reports our recent works and future…”
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  4. 4

    Giant renormalization of dopant impurity levels in 2D semiconductor MoS2 by Hwang, Jeongwoon, Zhang, Chenxi, Kim, Yong-Sung, Wallace, Robert M., Cho, Kyeongjae

    Published in Scientific reports (18-03-2020)
    “…Substitutional doping in 2D semiconductor MoS 2 was investigated by charge transition level (CTL) calculations for Nitrogen group (N, P, As, Sb) and Halogen…”
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  5. 5

    Phonon softening and failure of graphene under tensile strain by Hwang, Jeongwoon, Ihm, Jisoon, Kim, Kyung-Suk, Cha, Moon-Hyun

    Published in Solid state communications (01-12-2014)
    “…Phonon softening of graphene under tensile strain is investigated based on ab initio density functional theory calculations. We demonstrate that, over a wide…”
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  6. 6

    Energy Bandgap and Edge States in an Epitaxially Grown Graphene/h-BN Heterostructure by Hwang, Beomyong, Hwang, Jeongwoon, Yoon, Jong Keon, Lim, Sungjun, Kim, Sungmin, Lee, Minjun, Kwon, Jeong Hoon, Baek, Hongwoo, Sung, Dongchul, Kim, Gunn, Hong, Suklyun, Ihm, Jisoon, Stroscio, Joseph A., Kuk, Young

    Published in Scientific reports (09-08-2016)
    “…Securing a semiconducting bandgap is essential for applying graphene layers in switching devices. Theoretical studies have suggested a created bulk bandgap in…”
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  7. 7

    Computational Evaluation of Amorphous Carbon Coating for Durable Silicon Anodes for Lithium-Ion Batteries by Hwang, Jeongwoon, Ihm, Jisoon, Lee, Kwang-Ryeol, Kim, Seungchul

    Published in Nanomaterials (Basel, Switzerland) (13-10-2015)
    “…We investigate the structural, mechanical, and electronic properties of graphite-like amorphous carbon coating on bulky silicon to examine whether it can…”
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  8. 8

    2D MoS2 as an efficient protective layer for lithium metal anodes in high-performance Li–S batteries by Cha, Eunho, Patel, Mumukshu D., Park, Juhong, Hwang, Jeongwoon, Prasad, Vish, Cho, Kyeongjae, Choi, Wonbong

    Published in Nature nanotechnology (01-04-2018)
    “…Among the candidates to replace Li-ion batteries, Li–S cells are an attractive option as their energy density is about five times higher (~2,600 Wh kg −1 )…”
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  9. 9

    Utilizing soft labels of Convolutional Neural networks for predicting quantum transmission probability: An application to high-dimensional data prediction by Cha, Moon-Hyun, Hwang, Jeongwoon

    Published in Computational materials science (05-01-2024)
    “…[Display omitted] We propose a method that utilizes Convolutional Neural Network (CNN) models for predicting continuous physical observables. While CNN models…”
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  10. 10

    Quantum transport in a chain of quantum dots with inhomogeneous size distribution and manifestation of 1D Anderson localization by Cha, Moon-Hyun, Hwang, Jeongwoon

    Published in Scientific reports (07-10-2020)
    “…The effect of inhomogeneous quantum dot (QD) size distribution on the electronic transport of one-dimensional (1D) QD chains (QDCs) is theoretically…”
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  11. 11

    Room-temperature hydrogen storage via two-dimensional potential well in mesoporous graphene oxide by Kim, Tae Hyung, Bae, Jaehyun, Lee, Tae Hoon, Hwang, Jeongwoon, Jung, Jong Hyun, Kim, Do Kyoung, Lee, Jin Seo, Kim, Dong Ok, Lee, Young Hee, Ihm, Jisoon

    Published in Nano energy (01-09-2016)
    “…Hydrogen is an excellent energy carrier free of carbon dioxide emission, but safe and efficient storage of hydrogen has been a bottleneck for the commercial…”
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  12. 12

    Band Structure Engineering of Layered WSe2 via One-Step Chemical Functionalization by Park, Jun Hong, Rai, Amritesh, Hwang, Jeongwoon, Zhang, Chenxi, Kwak, Iljo, Wolf, Steven F, Vishwanath, Suresh, Liu, Xinyu, Dobrowolska, Malgorzata, Furdyna, Jacek, Xing, Huili Grace, Cho, Kyeongjae, Banerjee, Sanjay K, Kummel, Andrew C

    Published in ACS nano (23-07-2019)
    “…Chemical functionalization is demonstrated to enhance the p-type electrical performance of two-dimensional (2D) layered tungsten diselenide (WSe2) field-effect…”
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  13. 13

    Publisher Correction: 2D MoS2 as an efficient protective layer for lithium metal anodes in high-performance Li–S batteries by Cha, Eunho, Patel, Mumukshu D., Park, Juhong, Hwang, Jeongwoon, Prasad, Vish, Cho, Kyeongjae, Choi, Wonbong

    Published in Nature nanotechnology (01-06-2018)
    “…In the version of this Article originally published, a technical error in typesetting led to the traces in Fig. 3a being trimmed and made to overlap. The…”
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  14. 14

    Theoretical study on the hydrogen storage mechanism of the Li–Mg–N–H system by Jung, Jong Hyun, Kim, Dongwook, Hwang, Jeongwoon, Lee, Yea-Lee, Ihm, Jisoon

    Published in International journal of hydrogen energy (19-10-2016)
    “…The gas-phase reaction mechanism of magnesium amide (Mg(NH2)2) and lithium hydride (LiH) to produce H2 is theoretically investigated using ab initio electronic…”
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  15. 15

    Bandgap Tuned WS 2 Thin‐Film Photodetector by Strain Gradient in van der Waals Effective Homojunctions by Kim, Seong Jun, Kim, Dongwook, Min, Bok Ki, Yi, Yoonsik, Mondal, Shuvra, Nguyen, Van‐Tam, Hwang, Jeongwoon, Suh, Dongwoo, Cho, Kyeongjae, Choi, Choon‐Gi

    Published in Advanced optical materials (01-11-2021)
    “…Abstract Van der Waals (vdW) heterostructures (or heterojunctions) are formed by stacking two different 2D materials (e.g., graphene, h‐BN, or transition metal…”
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  16. 16

    Bandgap Tuned WS2 Thin‐Film Photodetector by Strain Gradient in van der Waals Effective Homojunctions by Kim, Seong Jun, Kim, Dongwook, Min, Bok Ki, Yi, Yoonsik, Mondal, Shuvra, Nguyen, Van‐Tam, Hwang, Jeongwoon, Suh, Dongwoo, Cho, Kyeongjae, Choi, Choon‐Gi

    Published in Advanced optical materials (01-11-2021)
    “…Van der Waals (vdW) heterostructures (or heterojunctions) are formed by stacking two different 2D materials (e.g., graphene, h‐BN, or transition metal…”
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    Journal Article
  17. 17

    Band Structure Engineering of Layered WSe 2 via One-Step Chemical Functionalization by Park, Jun Hong, Rai, Amritesh, Hwang, Jeongwoon, Zhang, Chenxi, Kwak, Iljo, Wolf, Steven F, Vishwanath, Suresh, Liu, Xinyu, Dobrowolska, Malgorzata, Furdyna, Jacek, Xing, Huili Grace, Cho, Kyeongjae, Banerjee, Sanjay K, Kummel, Andrew C

    Published in ACS nano (23-07-2019)
    “…Chemical functionalization is demonstrated to enhance the p-type electrical performance of two-dimensional (2D) layered tungsten diselenide (WSe ) field-effect…”
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    Journal Article
  18. 18

    Threshold Voltage Modulation of a Graphene–ZnO Barristor Using a Polymer Doping Process by Kim, So‐Young, Hwang, Jeongwoon, Kim, Yun Ji, Hwang, Hyeon Jun, Son, Myungwoo, Revannath, Nikam, Ham, Moon‐Ho, Cho, Kyeongjae, Lee, Byoung Hun

    Published in Advanced electronic materials (01-07-2019)
    “…A method to modulate the threshold voltage of a graphene–ZnO barristor is investigated. Two types of polymers, polyethyleneimine (as an n‐type dopant) and poly…”
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  19. 19

    Giant renormalization of dopant impurity levels in 2D semiconductor MoS 2 by Hwang, Jeongwoon, Zhang, Chenxi, Kim, Yong-Sung, Wallace, Robert M, Cho, Kyeongjae

    Published in Scientific reports (18-03-2020)
    “…Substitutional doping in 2D semiconductor MoS was investigated by charge transition level (CTL) calculations for Nitrogen group (N, P, As, Sb) and Halogen…”
    Get full text
    Journal Article
  20. 20

    Publisher Correction: 2D MoS 2 as an efficient protective layer for lithium metal anodes in high-performance Li-S batteries by Cha, Eunho, Patel, Mumukshu D, Park, Juhong, Hwang, Jeongwoon, Prasad, Vish, Cho, Kyeongjae, Choi, Wonbong

    Published in Nature nanotechnology (01-06-2018)
    “…In the version of this Article originally published, a technical error in typesetting led to the traces in Fig. 3a being trimmed and made to overlap. The…”
    Get full text
    Journal Article