Publications
2023
57. S. J. Kim S, G. H. An, M. Choi, Y. Z. Kang, T. Y. Kim, I. N. Rahman, Junhyeok Bang, K. W. Kim, D.-H. Kim, H.-S. Lee, Crystal violet as CMOS-compatible alkali-free promoter for CVD growth of MoSe2 monolayers: Comparative surface analysis with alkali-based promoter, Curr. Appl. Phys. 48, 106 (2023).
56. P. V. Gaikwad, Junhyeok Bang, Hardness and Mechanical Properties of Wurtzite B-C-N Compounds, J. Phys. Chem. C 127, 2581 (2023).
2022
55. Z. Wang, J. Byun, S. Lee, J. Seo, B. Park, J. C. Kim, H. Y. Jeong, Junhyeok Bang, J. Lee, S. H. Oh, Vacancy driven surface disorder catalyzes anisotropic evaporation of ZnO (0001) polar surface, Nat. Commun. 13, 5616 (2022).
54. L. Huang, Y. Zhao, N. Le Thi, S.-H. Lee, Z. Peng, S. Kim, H. J. Shin, J. Park, H.-J. Kim, J.-I. Hong, Junhyeok Bang, H.-S. Lee, K. W. Kim, D.-H. Kim, Observation of magnetoconductivity with terahertz probes for ferromagnetic Fe films, Curr. Appl. Phys. 41, 81 (2022).
53. J. Lee, Junhyeok Bang, J. Kang, Nonequilibrium Charge-Density-Wave Melting in 1 T-TaS2 Triggered by Electronic Excitation: A Real-Time Time-Dependent Density Functional Theory Study, J. Phys. Chem. Lett. 13, 5711 (2022).
52. S. Lee, B. Min, Junhyeok Bang, Substrate effect on hydrogen evolution reaction in two-dimensional Mo2C monolayers, Sci. Rep. 12, 6076 (2022).
51. G. H. An, S. J. Kim, S. Kim, S. J. Shin, M. Choi, D. Kim, I. N. Rahman, Junhyeok Bang, K. Kim, D.-H. Kim, H. S. Lee, Growth mode control of CVD-grown WS2 monolayer flakes via O2 pre-annealing for organic surfactant oxidation, Appl. Surf. Sci. 585, 152564 (2022).
50. M. Choi, S. K. Kang, S. Kim, S. J. Kim, G. H. An, S. J. Shin, D. Kim, I. N. Rahman, Junhyeok Bang, K. Kim, D.-H. Kim, H. S. Lee, Mo nitrides and carbonitrides via metallic phase transition of MoO3 films using ammonium salt precursors in chemical vapor deposition, Curr. Appl. Phys. 34, 1 (2022).
2021
49. J.-E. Hong, Y. Lee, S.-I. Mo, H.-S. Jeong, J.-H. An, H.-E. Song, J. Oh, Junhyeok Bang, J.-H. Oh, K.-H. Kim, Fully Bottom-Up Waste-Free Growth of Ultrathin Silicon Wafer via Self-Releasing Seed Layer, Adv. Mater. 33, 2103708 (2021).
48. Junhyeok Bang, J. Kang, Subband-enhanced carrier multiplication in graphene nanoribbons, Phys. Rev. B 104, 035417 (2021).
2020
47. N.-K. Chen, Junhyeok Bang, X.-B. Li, X.-P. Wang, D. Wang, Q.-D. Chen, H.-B. Sun, S. Zhang, Optical subpicosecond nonvolatile switching and electron-phonon coupling in ferroelectric materials, Phys. Rev. B 102, 184115 (2020).
46. J. Chaste, I. Hnid, L. Khalil, C. Si, A. Durnez, X. Lafosse, M.-Q. Zhao, A. T. C. Johnson, S. Zhang, Junhyeok Bang, A. Ouerghi, Phase Transition in a Memristive Suspended MoS2 Monolayer Probed by Opto- and Electro-Mechanics, ACS Nano 14, 13611 (2020).
45. Junhyeok Bang, A Self-Consistent Crank-Nicolson Method for Solving Time-Dependent Kohn-Sham Equation in a Localized Atomic Orbital Basis Set, New Phys.: Sae Mulli. 70, 646 (2020).
44. K. Cheng, H. Wang, Junhyeok Bang, D. West, J. Zhao, S. Zhang, Carrier Dynamics and Transfer across the CdS/MoS2 Interface upon Optical Excitation, J. Phys. Chem. Lett. 11, 6544 (2020).
43. S. Lee, N. Park, and Junhyeok Bang, Nonlocal effect of excited carriers on the bond strength of carbazole-based OLED host materials, Phys. Rev. Mater. 4, 044603 (2020).
42. X.-P. Wang, X.-B. Li, N.-K. Chen, Junhyeok Bang, R. Nelson, C. Ertural, R. Dronskowski, H.-B. Sun, S. Zhang, Time-dependent density-functional theory molecular-dynamics study on amorphization of Sc-Sb-Te alloy under optical excitation, NPJ Comput. Mater. 6, 31 (2020).
2019
41. Junhyeok Bang, S. Meng, and S. B. Zhang, Dynamic defect as nonradiative recombination center in semiconductors, Phys. Rev. B 100, 245208 (2019).
40. C. Si, D. Choe, W. Xie, Z. Sun, Junhyeok Bang*, and S. B. Zhang*, Photoinduced Vacancy Ordering and Phase Transition in MoTe2, Nano Lett. 19, 3612 (2019).
2018
39. H. Kim, Junhyeok Bang, J. Kang*, Robust ferromagnetism in hydrogenated graphene mediated by spin-polarized pseudospin, Sci. Rep. 8, 13940 (2018).
38. M. C. Lucking, F. Zheng, M. J. Han, Junhyeok Bang*, and S. B. Zhang*, Doping-induced antiferromagnetic bicollinear insulating state and superconducting temperature of monolayer FeSe systems, Phys. Rev. B 98, 014504 (2018).
37. N.-K. Chen, X. B. Li*, Junhyeok Bang, X.-P. Wang, D. Han, D. West, S. B. Zhang*, and H.-B. Sun*, Directional Forces by Momentumless Excitation and Order-to-Order Transition in Peierls-Distorted Solids: The Case of GeTe, Phys. Rev. Lett. 120, 185701 (2018).
36. J. K. Lee, B. Park, K. Song, W. Y. Jung, D. Tyutyunnikov, T. Yang, C. T. Koch, C. G. Park, P. A. van Aken, Y.-M. Kim, J. K. Kim, Junhyeok Bang, L.-Q. Chen, and S. H. Oh*, Strain-induced indium clustering in non-polar a-plane InGaN quantum wells, Acta Materiallia 145, 109 (2018).
2017
35. N.-K. Chen, D. Han, X. B. Li*, F. Liu, Junhyeok Bang, X.-P. Wang, Q.-D. Chen, H.-Y. Wang, S. B. Zhang*, and H.-B. Sun*, Giant lattice expansion by quantum stress and universal atomic forces in semiconductors under instant ultrafast laser excitation, Phys. Chem. Chem. Phys. 19, 24735 (2017).
2016
34. H. Dong, Junhyeok Bang*, W. Xie, V. Meunier and S. B. Zhang*, Phonon-Enabled Carrier Transport of Localized States at Non-Polar Semiconductor Surfaces: A First-Principles-Based Prediction, J. Phys. Chem. Lett. 7, 3548 (2016). Featured in Spotlights.
33. Junhyeok Bang, Y. Y. Sun, X.-Q. Liu, F. Gao, and S. B. Zhang*, Carrier-Multiplication-Induced Structural Change during Ultrafast Carrier Relaxation and Nonthermal Phase Transition in Semiconductors, Phys. Rev. Lett. 117, 126402 (2016).
32. H. Wang, Junhyeok Bang*, Y. Y. Sun, L. Liang*, D. West*, V. Meunier, and S. B. Zhang, The role of collective motion in the ultrafast charge transfer in van der Waals heterostructures, Nature Comm. 7, 11504 (2016).
31. Junhyeok Bang, Y. Y. Sun, Jung-Hoon Song, and S. B. Zhang*, Carrier-induced transient defect mechanism for non-radiative recombination in InGaN light emitting devices, Sci. Rep. 6, 24404 (2016).
30. S. Seo, H. U. Lee*, S. C. Lee, Y. Kim, H. Kim, Junhyeok Bang, J. Won, Y. Kim, B. Park, and J. Lee*, Triangular Black Phosphorus Atomic Layers by Liquid Exfoliation, Sci. Rep. 6, 23736 (2016).
2015
29. M. C. Lucking, Junhyeok Bang, H. Terrones, Y.-Y. Sun, and S. B. Zhang*, Multivalency-induced Band Gap Opening at MoS2 edges, Chem. Mater. 27, 3326 (2015).
28. Junhyeok Bang, Y.-Y. Sun, D. West, B. K. Meyer, and S. B. Zhang*, Molecular doping of ZnO by ammonia: a possible shallow acceptor, J. Mater. Chem. C 3, 339 (2015).
2014
27. Junhyeok Bang, Y.-S. Kim, C. H. Park, F. Gao, and S. B. Zhang*, Understanding the presence of vacancy clusters in ZnO from a kinetic perspective, Appl. Phys. Lett. 104, 252101 (2014).
2013
26. W. Xie, Junhyeok Bang, and S. B. Zhang*, Microscopic Origin for Electrically Benign Small-angle Grain Boundaries in Low-cost Semiconductors, Mater. Res. Lett 2, 51 (2013).
25. Z. Wang, M. Gu, Y. Zhou, X. Zu, J. G. Connell, J. Xiao, D. Perea, L. J. Lauhon, Junhyeok Bang, S. B. Zhang, C. Wang*, and F. Gao*, Electron-Rich Driven Electrochemical Solid-State Amorphization in Li-Si Alloys, Nano Lett. 13, 4511 (2013).
24. Junhyeok Bang, Y.-Y. Sun, T. A. Abtew, A. Samanta, P. Zhang*, and S. B. Zhang*, Difficulty in predicting shallow defects with hybrid functional: Implication of the long-range exchange interaction, Phys. Rev. B 88, 035134 (2013).
23. Junhyeok Bang, Z. Li, Y.-Y. Sun*, A. Samanta, Y. Y. Zhang, W. Zhang, L. Wang, X. Chen, X. Ma, Q.-K. Xue*, and S. B. Zhang*, Atomic and electronic structures of single-layer FeSe on SrTiO3(001): The role of oxygen deficiency, Phys. Rev. B 87, 220503 (2013). Rapid Communications. Selected as Editors’ Suggestions.
22. Junhyeok Bang, Z. Wang, F. Gao, S. Meng, and S. B. Zhang*, Suppression of nonradiative recombination in ionic insulators by defects: Role of fast electron trapping in Tl-doped CsI, Phys. Rev. B 87, 205206 (2013).
21. D. Han, Y.-Y. Sun*, Junhyeok Bang, Y. Y. Zhang, H.-B. Sun, X.-B. Li, and S. B. Zhang*, Deep electron traps and origin of p-type conductivity in the earth-abundant solar-cell material Cu2ZnSnS4, Phys. Rev. B 87, 155206 (2013).
20. Junhyeok Bang, S. Meng, Y.-Y. Sun, D. West, Z. Wang, F. Gao, and S. B. Zhang*, Regulating energy transfer of excited carriers and the case for excitation-induced hydrogen dissociation on hydrogenated graphene, Proc. Natl. Acad. Sci. USA 110, 908 (2013).
2012
19. D. West, Y.-Y. Sun, H. Wang, Junhyeok Bang, and S. B. Zhang*, Native defects in second-generation topological insulators: Effect of spin-orbit interaction on Bi2Se3, Phys. Rev. B 86, 121201 (2012). Rapid Communications. Selected as Editors’ Suggestions.
18. Z. Wang, Y. G. Zhou, Junhyeok Bang, M. P. Prange, S. B. Zhang, and F. Gao*, Modification of defects structure in graphene by electron irradiation: Ab initio molecular dynamics simulations, J. Phys. Chem. C 116, 16070 (2012).
17. Y.-Y. Sun, W. Y. Ruan, X. Gao, Junhyeok Bang, Y.-H. Kim, K. Lee, D. West, X. Liu, T.-L. Chan, M. Y. Chou*, and S. B. Zhang*, Phase diagram of graphene nanoribbons and band-gap bifurcation of Dirac fermions under quantum confinement, Phys. Rev. B 85, 195464 (2012).
16. Y.-J. Oh, J.-H. Hwang, H.-K. Noh, Junhyeok Bang, B. Ryu, and K. J. Chang*, Ab initio study of boron segregation and deacivation at Si/SiO2 interface, Microelectron. Eng. 89, 120 (2012).
2011
15. H.-K. Noh, B. Ryu, Junhyeok Bang, K. J. Chang*, and E.-A. Choi, The electronic structure of oxygen vacancy in amorphous HfSiO4, AIP Conf. Proc. 1399, 57 (2011).
14. K. J. Chang*, B. Ryu, H.-K. Noh, Junhyeok Bang, and E.-A. Choi, Electronic structure of O-vacancy in high-k dielectrics and oxide semiconductors, MRS Proceedings 1370, pp. mrss11-1370-yy01-01 (2011).
2010
13. D. H. Choe, Junhyeok Bang, and K. J. Chang*, Electronic structure and transport properties of hydrogenated graphene and graphene nanoribbons, New J. Phys. 12, 125005 (2010).
12. Junhyeok Bang and K. J. Chang*, Localization and one-parameter scaling in hydrogenated graphene, Phys. Rev. B 81, 193412 (2010).
2009
11. Junhyeok Bang, E.-A. Choi, and K. J. Chang*, The effect of impurities on hydrogen bonding site and local vibrational frequency in ZnO, J. Appl. Phys. 106, 053522 (2009).
10. H.-K. Noh, B. Ryu, E.-A. Choi, Junhyeok Bang, and K. J. Chang*, Local bonding effect on the defect states of oxygen vacancy in amorphous HfSiO4, Appl. Phys. Lett. 95, 082905 (2009).
9. S. Jwa, Junhyeok Bang, and K. J. Chang*, Chemical bonding and diffusion of B dopants in C-predoped Si, Phys. Rev. B 80, 075206 (2009).
8. W.-J. Lee, E.-A. Choi, Junhyeok Bang, B. Ryu, and K. J. Chang*, First-principles study of the electronic structure of crystalline InGaO3(ZnO)3, J. Korean Phys. Soc. 55, 112 (2009).
7. Junhyeok Bang and K. J. Chang*, Atomic structure and diffusion of hydrogen in ZnO, J. Korean Phys. Soc. 55, 98 (2009).
2008
6. W.-J. Lee, E.-A. Choi, Junhyeok Bang, B. Ryu, and K. J. Chang*, Structural and electronic properties of crystalline InGaO3(ZnO)m, Appl. Phys. Lett. 93, 111901 (2008).
5. J. Kang, Y.-H. Kim, Junhyeok Bang, and K. J. Chang*, Direct and defect-assisted electron tunneling through ultrathin SiO2 layers from first principles, Phys. Rev. B 77, 195321 (2008).
4. Junhyeok Bang and K. J. Chang*, Diffusion and thermal stability of hydrogen in ZnO, Appl. Phys. Lett. 92, 132109 (2008).
3. J. Kang, Junhyeok Bang, B. Ryu, and K. J. Chang*, Effect of atomic-scale defects on the low-energy electronic structure of graphene : Perturbation theory and local-density-fuctional calculations, Phys. Rev. B 77, 115453 (2008).
2007
2. Junhyeok Bang, J. Kang, W.-J. Lee, K. J. Chang*, and H. Kim, Retardation of boron diffusion in SiGe alloy, Physica B 401-402, 196 (2007).
1. Junhyeok Bang, J. Kang, W.-J. Lee, K. J. Chang*, and H. Kim, Chemical bonding effect of Ge atoms on B diffusion in Si, Phys. Rev. B 76, 064118 (2007).