Publications

Selected papers

2024


Anir S. Sharbirin, Wendy B. Mato, Rebekah E. Kong, Trang Thu Tran, Sophia Akhtar, Eun Ji Lee, Jolene W. P. Khor, Jeongyong Kim*, Highly Enhanced UV Absorption and Quantum Yields of Monolayer WS2 through Hybridization with Ti2N MXene Quantum Dots and g-C3N4 Quantum Dots, under review

Anir S. Sharbirin, Fadli Afrizal Lathiful, Hyoyoung Lee, Dinh Loc Duong*, Jeongyong Kim*, Fluorine-Free, High-Quantum Yield and UV-Emitting Titanium Nitride (Ti2N) MXene Quantum Dots Synthesized using a One-Step Solvothermal Method and Observation of the Auger Effect, under review 


Jolene W. P. Khor, Trang Thu Tran, Anir S. Sharbirin, Sammy X. B. Yap, Hyunseung Choo and Jeongyong Kim*, Prediction of Quantum Yields of Monolayer WS2 by Machine Learning, Advanced Optical Materials, 12, 2302195 (2023).  https://doi.org/10.1002/adom.202302195


Tae Soo Kim, Gichang Noh, Seongdae Kwon, Ji Yoon Kim, Krishna P. Dhakal, Saeyoung Oh, Hyun-Jun Chai, Eunpyo Park, In Soo Kim, Eunji Lee, Youngbum Kim, Jaehyun Lee, Min-kyung Jo, Minsoo Kang, Cheolmin Park, Jeongho Kim, Jeongwon Park, Suhyun Kim, Mingyu Kim, Yuseok Kim, Sung-Yool Choi, Seungwoo Song, Hu Young Jeong,  Jeongyong Kim*, Joon Young Kwak*, Kibum Kang*, Diffusion Control on the Van der Waals Surface of Monolayers for Uniform Bi‐Layer MoS2 Growth, Advanced Function Materials, DOI: 10.1002/adfm.202312365


Tran Thu Tran, Yongjun Lee, Shrawan Roy, Thi Uyen Tran, Youngbum Kim, Takashi Taniguchi, Kenji Watanabe, Milorad Milosevic, Seong Chu Lim, Andrey Chaves*, Joon Ik Jang*, Jeongyong Kim*, Synergetic enhancement of quantum yield and exciton lifetime of monolayer WS2 by proximal metal plate and negative electric bias, ACS Nano, 18, 220 (2024), DOI: 10.1021/acsnano.3c05667


Eunji Lee, Krishna P. Dhakal, Hwayoung Song (co-1st), Heenang Choi, Taek-Mo Chung, Dinh Loc Duong, Saeyoung Oh, Hu Young Jeong, Kibum Kang*, Jeongyong Kim*, Anomalous Temperature and Polarization Dependences of Photoluminescence of Metal-Organic Chemical Vapor Deposition-Grown GeSe2, Advanced Optical Materials, 12, 2301355 (2024)

2023


Sang-hun Lee, Taek Joon Kim, Eunji Lee, Dayeong Kwon, Jeongyong Kim* and Jinsoo Joo*, Observation of aligned dipoles and angular chromism of exciplexes in organic molecular heterostructures, Nature Communications, 14, 7190 (2023)


Krishna P. Dhakal, E Lee, TV Anh, G Ghimire, W Choi, YM Kim, DL Duong*, Jeongyong Kim*, Investigation of exciton states of ReS2 by temperature-and polarization-dependent photoluminescence and oxygen plasma treatment, Applied Surface Science, 638, 158093 (2023)


Taek Joon Kim, Sang-hun Lee, Eunji Lee, Changwon Seo, Jeongyong Kim*, Jinsoo Joo*, Far‐Red Interlayer Excitons of Perovskite/Quantum‐Dot Heterostructures, Advanced Science, 10, 2207653 (2023) 


Jaspal Singh, Sophia Akhtar, Trang Thu Tran, Jeongyong Kim*, MoS2 nanoflowers functionalized with C3N4 nanosheets for enhanced photodecomposition, Journal of Alloys and Compounds, 954, 170206 4 (2023)


Jaspal Singh, Shrawan Roy, Tran Thu Tran, Sophia Akhtar, E Lee, Jeongyong Kim*, Photocatalytic thin films based on Au nanoparticles covered by iron oxyhydroxides by hydrothermal process, Surfaces and Interfaces, 39, 102915 (2023)


Sophia Akhtar, Jaspal Singh, Tran Thu Tran, Shrawan Roy,  Eunji Lee, Jeongyong Kim*, Synthesis and optical properties of light-emitting V2N MXene quantum dots, Optical Materials, 138, 113660 (2023)


Dongkyu Kim, Tran Thu  Tran, Takashi Taniguchi, Kenji Watanabe, Jeongyong Kim*, Joon Ik Jang*, Temperature Dependence of Excitonic Auger Recombination in Excitonic-Complex-Free Monolayer WS2 by Considering Auger Broadening and Generation, Journal of Physical Chemistry Letters, 14, 4259 (2023)

2022


Krishna P. Dhakal, Jinsoo Joo*, Jeongyong Kim*, Current Applied Physics, Molecular crystallization of rubrene thin films assisted by gold nanoparticles, 

Tae Soo Kim, Krishna P. Dhakal, Eunpyo Park, Gichang Noh, Hyun-Jun Chai, Youngbum Kim, Saeyoung Oh, Minsoo Kang, Jeongwon Park, Jaewoo Kim, Suhyun Kim, Hu Young Jeong, Sunghwan Bang, Joon Young Kwak, Jeongyong Kim*, Kibum Kang*, Gas-Phase Alkali Metal-Assisted MOCVD Growth of 2D Transition Metal Dichalcogenides for Large-Scale Precise Nucleation Control, Small,  18, 2106368, (2022)

Sophia Akhtar, Shrawan Roy (co-1st), Trang Thu Tran, Jaspal Singh, Anir S. Sharbirin, Jeongyong Kim*, Low temperature step annealing synthesis of the Ti2AlN MAX phase to fabricate MXene quantum dots, Applied Sciences, 12, 4154 (2022)

Anir S. Sharbirin, Shrawan Roy, Trang Thu Tran, Sophia Akhtar, Jaspal Singh, Dinh Loc Duong,* Jeongyong Kim*, Light-Emitting Ti2N (MXene) Quantum Dots: Synthesis, Characterization and Theoretical Calculations, Journal of Materials Chemistry C, 10, 6508 (2022)

Jaspal Singh, R. K. Soni, Jeongyong Kim*, Photocatalytic β-In2S3 nanoflowers synthesized by thermal assembly of In2S3 nanosheets, Journal of Alloys and Compounds, 911, 165099 (2022)

Yongjun Lee, Trang Thu Tran (co-1st), Youngbum Kim, Shrawan Roy, Takashi Taniguchi, Kenji Watanabe, Joon I. Jang*, Jeongyong Kim*, Enhanced radiative exciton recombination in monolayer WS2 on hBN substrate competing with nonradiative exciton-exciton annihilation, ACS Photonics, 9, 873 (2022)

2021

Yongjun Lee, Johnathas D'arf Severo Forte, Andrey Chaves, Anshuman Kumar, Youngbum Kim, Tran Thu Trang, Shrawan Roy, Takashi Taniguchi, Kenji Watanabe, Alexey Chernikov, Joon I. Jang, Tony Low*, Jeongyong Kim*, Boosting quantum yields in two-dimensional semiconductors via proximal metal plates, Nature Communications, 12, 7095 (2021) 


Youngbum Kim, Jeongyong Kim*, Near-Field Optical Imaging and Spectroscopy of 2D-TMDs, Nanophotonics, 10, 3397 (2021) (Invited review

Ganesh Ghimire, Krishna P. Dhakal, Wooseon Choi, Yonas Assefa Esthete (co-1st), Seon Je Kim, Tran Thu Trang, Hyoyoung Lee, Heejun Yang, Dinh Loc Duong, Young-Min Kim*, Jeongyong Kim*, Doping-mediated lattice-engineering of monolayer ReS2 for modulating in-plane anisotropy of optical and transport properties, ACS Nano, 15, 13770 (2021).

Rim Turki, Ganesh Ghimire (co-1st), Kamel Damak, Hyun Yong Song, Stephen Boandoh, JongIl Kim, Christian Rüssel, Roy Aad*, Jeongyong Kim*, Ramzi Maalej*, Luminescent Sm-doped aluminosilicate glass as a substrate for enhanced photoresponsivity of MoS2 based photodetector, Applied Surface Science, 565, 150342 (2021)

Shrawan Roy, Manh‑Ha Doan, Jeongyong Kim*, Seon Kyeong Kang, Gwang Hwi Ahn, Hyun Seok Lee, Seok Joon Yun, Modulation of optoelectric properties of monolayer transition metal dichalcogenides placed on a metal pattern, Journal of the Korean Physical Society, 78, 693 (2021).

Anir S. Sharbirin, Sophia Akhtar (co-1st), Jeongyong Kim*, Light-Emitting MXene Quantum Dots, Opto-Electronic Advances, 4, 200077 (2021). (Invited review

Jubok Lee, Seok Joon Yun, Changwon Seo, Kiwon Cho, Tae Soo Kim, Gwang Hwi An, Kibum Kang, Hyun Seok Lee, Jeongyong Kim*, Switchable, Tunable, and Directable Exciton Funneling in Periodically Wrinkled WS2, Nano Letters, 21, 43 (2021).

2020

Changwon Seo, Miyeon Kim, Jubok Lee, Chang Yeon Lee*, Jeongyong Kim*, Spectroscopic Evidence of Energy Transfer in BODIPY-Incorporated Nano-Porphyrinic Metal-Organic Frameworks, Nanomaterials, 10, 1925 (2020)

Shrawan Roy, Anir S Sharbirin, Yongjun Lee, Won Bin Kim, Tae Soo Kim, Kiwon Cho, Kibum Kang, Hyun Suk Jung, Jeongyong Kim*, Measurement of Quantum Yields of Monolayer TMDs Using Dye-Dispersed PMMA Thin Film, Nanomaterials, 10, 1032 (2020)

Youngbum Kim, Eun Ji Lee (co-1st), Shrawan Roy, Anir S Sharbirin, Lars-Gunnar Ranz, Thomas Dieing, Jeongyong Kim*, Measurement of lateral and axial resolution of confocal Raman microscope using dispersed carbon nanotubes and suspended graphene, Current Applied Physics, 20, 71-77 (2020)

2019

Krishna Dhakal, Ganesh Ghimire, Kyungwha Chung (co-1st), Dinh Loc Duong*, Sung Wng Kim*, Jeongyong Kim*, Probing Multiphased Transition in Bulk MoS2 by Direct Electron Injection, ACS Nano, 13, 14437-14446 (2019)

Ji-Hyun Cha, Heejin Kim, Yongjun Lee (co-1st), Su-Jeong Kim, Min Wook Lee, Jeongyong Kim*, Duk-Young Jung*, Nanoscale optical imaging of perovskite nanocrystals directly embedded in polymer fiber, Composites Science and Technology, 181, 107666 (2019).

Youngbum Kim, Seok Joon Yun, EunJi Lee, Jeongyong Kim*, Near-field visualization of charge transfer at MoSe2/WSe2 lateral heterojunction, Optical Materials Express, 9, 1864-1871 (2019)

2018

Yongjun Lee, Jeongyong Kim*, Controlling Lattice Defects and Inter-Exciton Interactions in Monolayer Transistion Metal Dichalcogenides for Efficient Light Emission, ACS Photonics, 5, 4187-4194 (2018) (Invited Perspective

Yongjun Lee, Ganesh Ghimire, Shrawan Roy, Youngbum Kim, Changwon Seo, A. K. Sood, Joon I. Jang, Jeongyong Kim*, Impeding Exciton-Exciton Annihilation in Monolayer WS2 by Laser Irradiation, ACS Photonics, 5, 2904-2911 (2018)

Shrawan Roy, Wooseon Choi, Sera, Jeon, Do-Hwan Kim, Hyun Kim, Seok Joon Yun, Yongjun Lee, Jaekwang Lee*, Young-Min Kim*, Jeongyong Kim*, Atomic Observation of Filling Vacancies in Monolayer Transition Metal Sulfides by Chemically Sourced Sulfur Atoms, Nano Letters, 18, 4523-4530 (2018)

Juhong Park, Min Su Kim (co-1st), Bumsu Park, Sang Ho Oh, Shrawan Roy, Jeongyong Kim*, Wonbong Choi*, Composition-Tunable Synthesis of Large-Scale Mo1-xWxS2 Alloys with Enhanced Photoluminescence, ACS Nano, 12, 6301–6309 (2018).

Youngbum Kim, Yongjun Lee, Hyun Kim, Shrawan Roy,  Jeongyong Kim*, Near-field exciton imaging of chemically treated MoS2 monolayers, Nanoscale, 10, 8851-8858 (2018)

Ganesh Ghimire, Subash Adhikari, Seong Gi Jo, Hyun Kim, Jinbao Jiang, Jinsoo Joo*, Jeongyong Kim*, Local Enhancement of Exciton Emission of Monolayer MoS2 by Copper Phthalocyanine Nanoparticles,  Journal of Physical Chemistry C, 122, 6794–6800 (2018)

2017 

Shrawan Roy, C Muhammed Ajmal, Seunghyun Baik*, Jeongyong Kim*, Silver nanoflowers for single-particle SERS with 10 pM sensitivity, Nanotechnology, 28, 465705 (2017) [ link ]

Kyoung Chul Park, Changwon Seo (co-1st), Gajendra Gupta, Jeongyong Kim*, Chang Yeon Lee*, Efficient Energy Transfer (EnT) in Pyrene- and Porphyrin-Based Mixed-Ligand Metal–Organic Frameworks, ACS Applied Materials & Interfaces, 9, 38670-38677 (2017). [ link ]

Krishna P. Dhakal, Shrawan Roy (co-1st), Seok Joon Yun, Ganesh Ghimire, Changwon SeoJeongyong Kim*, Heterogeneous modulation of exciton emission in triangular WS2 monolayers by chemical treatment, Journal of Materials Chemistry C, 5, 6820-6827 (2017). [ link ]

Guru P. Neupane, Minh Dao Tran, Hyun Kim, Jeongyong Kim*, Modulation of Optical and Electrical Characteristics by Laterally Stretching DNAs on CVD-Grown Monolayers of MoS2, Journal of Nanomaterials,  Article ID. 2562703, (2017). [ link ] (Invited article)

Changwon Seo, Jubok Lee, Min Su Kim, Yongjun Lee, Jaehun Jung, Hee-Won Shin*, Tae Kyu Ahn, Greg Sun, Jinsang Kim*, Jeongyong Kim*, Plasmon-enhanced phosphorescence of hybrid thin films of metal-free purely organic phosphor and silver nanoparticles, Chemical Physics Letters, 676, 134-139 (2017). [ link ]

Ganesh Ghimire, Krishna Dhakal, Guru Neupane, Seong Gi Jo, Hyun Kim, Changwon Seo, Young Hee Lee, Jinsoo Joo*, Jeongyong Kim*, Optically Active Charge Transfer in Hybrids of Alq3 Nanoparticles and MoS2 Monolayer, Nanotechnology, 28, 185702-185709 (2017). [ link ]

Guru P. Neupane, Minh Dao Tran, Seok Joon Yun, Hyun Kim, Changwon Seo, Jubok Lee, Gang Hee Han, Ajay K. Sood, Jeongyong Kim*, Simple Chemical Treatment to N-dope Transition-Metal Dichalcogenides and Enhance the Optical and Electrical Characteristics, ACS Applied Materials & Interfaces, 9, 11950–11958 (2017). [ link ]

Yongjun Lee, Seok Joon Yun, Youngbum Kim, Min Su Kim, Gang Hee Han, A. K. Sood, Jeongyong Kim*, Near-field spectral mapping of individual exciton complexes of monolayer WS2 correlated with local defects and charge population, Nanoscale, 6, 2272-2278 (2017).[ link ]

Shrawan Roy, Guru P Neupane, Krishna P. Dhakal, Jubok Lee, Seok Joon Yun, Gang Hee Han, Jeongyong Kim*, Observation of Charge Transfer in Heterostructures Composed of MoSe2 Quantum Dots and a Monolayer of MoS2 or WSe2, Journal of physical chemistry C, 121, 1997–2004 (2017). [ link ]

2016

Min Su Kim, Shrawan Roy, Jubok Lee, Byung Gu Kim, Hyun Kim, Ji-Hoon Park, Seok Joon Yun, Gang Hee Han, Jae-Young Leem, Jeongyong Kim*, Enhanced Light Emission from Monolayer Semiconductors by Forming Heterostructures with ZnO Thin Films, ACS Applied Materials&Interfaces, 8, 28809–28815 (2016). [ link ]

Seki Park, Hyun Kim, Min Su Kim, Gang Hee Han, Jeongyong Kim*, Dependence of Raman and absorption spectra of stacked bilayer MoS2 on the stacking orientation, Optics Express, 24, 21551-21559 (2016). [ link ]

Guru P Neupane, Krishna P Dhakal, Hyun Kim, Jubok Lee , Min Su Kim , Gang Hee Han, Young Hee Lee, Jeongyong Kim*, Formation of nanosized monolayer MoS2 by oxygen-assisted thinning of multilayer MoS2 , Journal of Applied Physics, 120, 051702 (2016). [ link ]

Jubok Lee, Seonhee Lee, Min Su Kim , Hyunjung Shin*, Jeongyong Kim*, Enhancement of light-matter interaction and photocatalytic efficiency of Au/TiO2 hybrid nanowires, Optics Express, 24, 15171-15179 (2016). [ link ]

Min Su Kim, Changwon Seo, Hyun Kim, Jubok Lee , Dinh Hoa Luong, Ji-Hoon Park, Gang Hee Han, Jeongyong Kim*, Simultaneous Hosting of Positive and Negative Trions and the Enhanced Direct Band Emission in MoSe2/MoS2 Heterostacked Multilayers, ACS Nano, 10, 6211-6219 (2016). [ link ]    

Vijayakumar Modepalli, Mi-Jin Jin, Jungmin Park, Junhyeon Jo, Ji-Hyun Kim, Jeong Min Baik, Changwon Seo, Jeongyong Kim*, Jung-Woo Yoo*, Gate-Tunable Spin Exchange Interactions and Inversion of Magnetoresistance in Single Ferromagnetic ZnO Nanowires, ACS Nano, 10, 4618-4626 (2016). [ link ]   

Min Su Kim, Seok Joon Yun, Yongjun Lee, Changwon Seo , Gang Hee Han, Ki Kang Kim, Young Hee Lee, Jeongyong Kim*, Biexciton emission from edges and grain boundaries of triangular WS2 monolayers, ACS Nano, 10, 2399-2405 (2016). [ link ]

2015

Seki Park, Min Su Kim, Hyun Kim, Jubok Lee, Gang Hee Han, Jeil Jung*, Jeongyong Kim*, Spectroscopic visualization of grain boundaries of monolyaer molybdenum disulfide by stacking bilayers, ACS Nano, 9, 11042-11048 (2015). [ link

Hyun Seok Lee, Min Su Kim, Youngjo Jin, Gang Hee Han, Young Hee Lee*, Jeongyong Kim*, Selective amplification of primary exciton in MoS2 monolayer, Physical Review Letters, 115, 226801 (2015). [ link ]

Yongjun Lee, Seki Park, Hyun Kim, Gang Hee Han, Young Hee Lee, Jeongyong Kim*, Characterization of the structural defects in CVD-grown monolayered MoS2 using near-field photoluminescence imaging, Nanoscale, 7, 11909-11914 (2015). [ link ]

Min Su Kim, Giwoong Nam, Seki Park , Hyun Kim, Gang Hee Han, Jubok Lee, Krishna P. Dhakal, Jae-Young Leem, Young Hee Lee, Jeongyong Kim*, Photoluminescence wavelength variation of monolayer MoS2 by oxygen plasma treatment, Thin Solid Films, 590, 318-323 (2015). [ link ]

Guru P Neupane, Krishna P. Dhakal, Eun Hei Cho, Bong-Gi Kim, Seongchu Lim, Jubok Lee , Min Su Kim, Jinsang Kim, Jinsoo Joo*, Jeongyong Kim*, Enhanced luminescence and photocurrent of organic microrod/ZnO nanoparticles hybrid system: nanoscale optical and electrical characteristics, Electronic Materials Letters, 11, 741-748 (2015). [ link ]

Hyun Seok Lee, Min Su Kim, Youngjo Jin, Gang Hee Han, Young Hee Lee, Jeongyong Kim*, Efficient exciton-plasmon conversion in Ag nanowire/monolayer MoS2 hybrids: direct imaging and quantitative estimation of plasmon coupling and propagation, Advanced Optical Materials, 9, 943-947 (2015). [ link

2014

Krishna P. Dhakal, Dinh Loc Duong, Jubok Lee, Honggi Nam, Min Su Kim, Min Kan, Young Hee Lee, Jeongyong Kim*, Confocal absorption spectral imaging of MoS2: optical transitions depending on the atomic thickness of intrinsic and chemically doped MoS2, Nanoscale, 6, 13028-13035 (2014). [ link ]

Min Su Kim, Jubok Lee, Jeongyong Kim*, Polychromatic ZnO/CdZnO composite nanorods prepared by simple chemical methods: nanoscale optical characteristics, Optical Materials Express, 4, 1987-1996 (2014). [ link ]  

Mi-Jin Jin, Junghyeon Jo, Ji-Hee Kim, Ki-Seok An, Mun Seok Jeong, Jeongyong Kim*, Jung-Woo Yoo*, Effects of TiO2 Interfacial Atomic Layers on Device Performances and Exciton Dynamics in ZnO Nanorod Polymer Solar Cells, ACS Applied Materials & Interfaces, 6, 11649-11656 (2014). [ link ]

Seong Gi Jo, Dong Hyuk Park, Bong-Gi Kim, Sungbaek Seo, Suk Joong Lee, Jeongyong Kim*, Jinsang Kim*, Jinsoo Joo*, Dual-mode waveguiding of Raman and luminescence signals in a crystalline organic microplate, Journal of Materials Chemistry C, 2, 6077-6083 (2014). [ link ]                              

Eun Hei Cho, Bong-Gi Kim, Sumin Jun, Jubok Lee, Dong Hyuk Park, Kwang-Sup Lee, Jeongyong Kim*, Jinsang Kim*, Jinsoo Joo*, Remote Biosensing with Polychromatic optical waveguide using blue-light-emitting organic nanowire hybridized with quantum dots, Advanced Functional Materials, 24, 3684 (2014). [ link ]        

Krishna P. Dhakal, Hyunsoo Lee, Jeongyong Kim*, White light-emitting LED using electrospun Alq3/P3BT composite microfibers, Synthetic Metals, 190, 44-47 (2014).[ link

Guru P. Neupane, Dhakal P. Krishna, Min Su Kim, Hyunsoo Lee, Martin Guthold, Vincent S. Joseph, Jong-Dal Hong, Jeongyong Kim*, Simple method of DNA stretching on glass substrate for fluorescence imaging and spectroscopy, Journal of Biomedical Optics, 19, 051210 (2014). [ link ]     

Krishna P. Dhakal, Hyunsoo Lee, Jubok Lee, Seok Ho Lee, Jinsoo Joo*, Jeongyong Kim*, Gold nanoparticle hybridized rubrene nanofibers made by electrospinning: enhancement of optical and structural properties, Journal of Materials Chemistry C, 2, 1830-1835 (2014). [ link ]