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47. S. Jung†, J. Lee†, U. Kim, and H. Park*, “Solution‐Processed Molybdenum Oxide with Hydroxyl Radical‐Induced Oxygen Vacancy as an Efficient and Stable Interfacial Layer for Organic Solar Cells”, Sol. RRL, 2019, Accepted Link

46. S. Kumar†, Y. Choi†, S.-H. Kang, N. K. Oh, J. Lee, J. Seo, M. Jeong, H. W. Kwon, S. I. Seok*, C. Yang*, and H. Park*, “Multifaceted Role of Dibutylhydroxytoluene Processing Additive in Enhancing Efficiency and Stability of Planar Perovskite Solar Cells”, ACS Appl. Mater. Interfaces, 2019, 11(42), 38828-38837 Link

45. J. Lee, C. Kim, K. Choi, J. Seo, Y. Choi, W. Choi, Y.-M. Kim, H. Y. Jeong, J. H. Lee*, G. Kim*, and H. Park*, “In-Situ Coalesced Vacancies on MoSe2 Mimicking Noble Metal: Unprecedented Tafel Reaction in Hydrogen Evolution”, Nano Energy, 2019, 63, 103846 Link

44. S. Jung, H. H. Yoon, H. Jin, K. Mo, G. Choi, J. Lee, H. Park, and K. Park*, “Reduction of Water-Molecule-Induced Current-Voltage Hysteresis in Graphene Field Effect Transistor with Semi-Dry Transfer Using Flexible Supporter”, J. Appl. Phys., 2019, 125(18), 184302 Link

43. U. Kim, K. Choi, K. H. Park, J. Lee, Y. Choi, J. Seo, N. K. Oh, S. Jung, H. Yang, J. H. Lee*, C. Yang*, and H. Park*, “Size Fractionation of Graphene Oxide via Solvent‐Mediated Consecutive Charge Manipulation and Investigation of the Size Effect as Hole Transporting Layer in Perovskite Solar Cells”, ChemNanoMat, 2019, 5(6), 776-783 Link

42. Y. Choi, S. Jung, N. K. Oh, J. Lee, J. Seo, U. Kim, D. Koo, and H. Park*, “Enhanced charge transport via metallic 1T phase transition metal dichalcogenides-mediated hole transport layer engineering for perovskite solar cells”, ChemNanoMat, 2019, 5(8), 1050-1058 Link

41. N. K. Oh, C. Kim, J. Lee, O. Kwon, Y. Choi, G. Y. Jung, H. Y. Lim, S. K. Kwak*, G. Kim*, and H. Park*, “In-situ Local Phase-Transitioned MoSe2 in La0.5Sr0.5CoO3-δ Heterostructure and Stable Overall Water Electrolysis over 1000 hours”, Nat. Commun., 2019, 10, 1723 Link

40. B. H. Kim, H. Bae, H. Park, H. Lee, P. Ercius*, and J. Park*, “Rational design and observation of the tight interface between graphene and ligand protected nanocrystals”, Phys. Chem. Chem. Phys., 2019, 21(1), 329-335 Link

39. J. Seo, J. Lee, G. Jeong, and H. Park*, “Site-Selective and van der Waals Epitaxial Growth of Rhenium Disulfide on Graphene”, Small, 2019, 15(2), 1804133 Link


38. G. Jeong†, S. Jung†, Y. Choi, J. Lee, J. Seo, D. S. Kim*, and H. Park*, “Highly Robust and Stable Graphene-Encapsulated Cu-Grid Hybrid Transparent Electrode Demonstrating Superior Performance in Organic Solar Cells”, J. Mater. Chem. A, 2018, 6(48), 24805-24813 Link

37. D. Koo†, S. Jung†, N. K. Oh, Y. Choi, J. Seo, J. Lee, U. Kim, and H. Park*, “Improved Charge Transport via WSe2-Mediated Hole Transporting Layer toward Efficient Organic Solar Cells”, Semicond. Sci. Technol., 2018, 33(12), 125020 Link

36. S. Jung†, H. Kim†, J. Lee†, G. Jeong, H. Kim, J. Park*, and H. Park*, “Bio-Inspired Catecholamine-Derived Surface Modifier for Graphene-Based Organic Solar Cells”, ACS Appl. Energy Mater., 2018, 1(11), 6463-6468 Link

35. S. Chen, S. Jung, H. J. Cho, N.-H. Kim, S. Jung, J. Xu, J. Oh, Y. Cho, H. Kim, B. Lee, Y. An, C. Zhang, M. Xiao, H. Ki, Z.-G. Zhang, J.-Y. Kim, Y. Li, H. Park*, and C. Yang*, “Highly Flexible and Efficient All-Polymer Solar Cells with High-Viscosity Processing Polymer Additive toward Potential of Stretchable Devices”, Angew. Chem. Int. Ed., 2018, 57(40), 13277-13282 Link

34. J. Lee, J. Seo, S. Jung, K. Park, and H. Park*, “Unveiling the direct correlation between the CVD-grown graphene and the growth template”, J. Nanomater., 2018, 2018, 7610409 Link

33. K. Chung, J. S. Lee, E. Kim, K.-E. Lee, K. Kim, J. Lee, D. Kim, S. O. Kim, S. Jeon, H. Park, D.-W. Kim, and D. H. Kim*, “Enhancing the Performance of Surface Plasmon Resonance Biosensor via Modulation of Electron Density at the Graphene–Gold Interface”, Adv. Mater. Interfaces, 2018, 5(19), 1800433 Link

32. N. K. Oh, H. J. Lee, K. Choi, J. Seo, U. Kim, J. Lee, Y. Choi, S. Jung, J. H. Lee, H. S. Shin*, and H. Park*, “Nafion-Mediated Liquid-Phase Exfoliation of Transition Metal Dichalcogenides and Direct Application in Hydrogen Evolution Reaction”, Chem. Mater., 2018, 30(14), 4658-4666 Link

31. S. M. Lee, K. H. Park, S. Jung, H. Park*, and C. Yang*, “Stepwise heating in Stille polycondensation toward no batch-to-batch variations in polymer solar cell performance”, Nat. Commun., 2018, 9, 1867 Link

31-0. S. M. Lee, K. H. Park, S. Jung, H. Park*, and C. Yang*, “Stepwise heating in Stille polycondensation toward no batch-to-batch variations in polymer solar cell performance”, Protocol Exchange, 2018, doi:10.1038/protex.2018.023 Link

30. S. Jung, J. Lee, J. Seo, U, Kim, Y. Choi, and H. Park*, “Development of Annealing-Free, Solution-Processable Inverted Organic Solar Cells with N-Doped Graphene Electrodes using Zinc Oxide Nanoparticles”, Nano Lett., 2018, 18(2), 1337-1343 Link

29. Y.-T. Kim, H. Min, J. LeeH. Park, and C. Y. Lee*, “Probing sub-diffraction optical confinement via polarized Raman spectroscopy of a single-walled carbon nanotube”, Nanoscale, 2018, 10(3), 1030-1037 Link


28. W. K. Park, Y. Yoon, Y. H. Song, S. Y. Choi, S. Kim, Y. Do, J. LeeH. Park*, D. H. Yoon*, and W. S. Yang*, “High-efficiency exfoliation of large-area mono-layer graphene oxide with controlled dimension”, Sci. Rep., 2017, 7, 16414 Link

27. Y. Choi†, J. Lee†, J. Seo†, S. Jung, U. Kim, and H. Park*, “The Effect of the Graphene Integration Process in the Performance of Graphene-based Schottky Junction Solar Cells”, J. Mater. Chem. A, 2017, 5(35), 18716-18724 Link

26. S. Jung, J. Lee, Y. Choi, S. M. Lee, C. Yang*, and H. Park*, “Improved Interface Control for High-Performance Graphene-based Organic Solar Cells”, 2D Mater., 2017, 4, 045004 Link

25. K. H. Park†, Y. An†, S. Jung†, H. Park*, and C. Yang*, “Locking-In Optimal Nanoscale Structure Induced by Naphthalenediimide-Based Polymeric Additive Enables Efficient and Stable Inverted Polymer Solar Cells”, ACS Nano, 2017, 11(7), 7409-7415 Link

24. S. J. Lee, Y. Kim, J.-Y. Hwang, J.-H. Lee, S. Jung, H. Park, S. Cho, S. Nahm, W. S. Yang, H. Kim*, and S. H. Han*, “Flexible Indium–Tin Oxide Crystal on Plastic Substrates Supported by Graphene Monolayer”, Sci. Rep., 2017, 7, 3131 Link

23. J. Seo, J. Lee, A.-R. Jang, Y. Choi, U. Kim, H. S. Shin, and H. Park*, “Study of Cooling Rate on the Growth of Graphene via Chemical Vapor Deposition”, Chem. Mater., 2017, 29(10), 4202-4208 Link

22. W. K. Park, Y. Yoon, S. Kim, S. Y. Choi, S. Yoo, Y. Do, S. Jung, D. H. Yoon*, H. Park*, and W. S. Yang*, “Toward Green Synthesis of Graphene Oxide Using Recycled Sulfuric Acid via Couette–Taylor Flow”, ACS Omega, 2017, 2(1), 186-192 Link


21. J. H. Choi, J. Lee, S. M. Moon, Y.-T. Kim, H. Park*, and C. Y. Lee*, “A Low-Energy Electron Beam Does Not Damage Single-Walled Carbon Nanotubes and Graphene”, J. Phys. Chem. Lett., 2016, 7(22), 4739-4743 Link

20. K. H. Park, Y. An, S. Jung, H. Park*, and C. Yang*, “The use of n-type macromolecular additive as a simple yet effective tool for improving and stabilizing the performance of organic solar cells”, Energy Environ. Sci., 2016, 9(11), 3464-3471 Link

19. J.-I. Lee†, H. Kang†, K. H. Park†, M. Shin, D. Hong, H. J. Cho, N.-R. Kang, J. Lee, S. M. Lee, J.-Y. Kim, C. K. Kim, H. Park, N.-S. Choi, S. Park*, and C. Yang*, “Amphiphilic Graft Copolymers as a Versatile Binder for Various Electrodes of High-Performance Lithium-Ion Batteries”, Small, 2016, 12(23), 3119–3127 Link


18. J. Park, H. Park, P. Ercius, A. F. Pegoraro, C. Xu, J. W. Kim, S. H. Han, and D. A. Weitz*, “Direct Observation of Wet Biological Samples by Graphene Liquid Cell Transmission Electron Microscopy”, Nano Lett., 2015, 15(7), 4737–4744 Link

17. Y. Zhou*†, J. Park†, J. Shi, M. Chhowalla, H. Park, D. A. Weitz, and S. Ramanathan, “Control of Emergent Properties at a Correlated Oxide Interface with Graphene”, Nano Lett., 2015, 15(3), 1627–1634 Link


16. A. M. Eltony*, H. Park, S. X. Wang, J. Kong, and I. L. Chuang, “Motional Heating in a Graphene-Coated Ion Trap”, Nano Lett., 2014, 14(10), 5712-5716 Link

15. H. Park, S. Chang†, X. Zhou, J. Kong*, T. Palacios*, and S. Gradečak*, “Flexible Graphene Electrode-Based Organic Photovoltaics with Record-High Efficiency”, Nano Lett., 2014, 14(9), 5148-5154 Link

14. S. ChangH. Park, J. Cheng, P. Rekemeyer, and S. Gradečak*, “Improved Efficiency in Organic/Inorganic Hybrid Solar Cells by Interfacial Modification of ZnO Nanowires with Small Molecules”, Journal of Physics D: Applied Physics, 2014, 47, 394016 Link

13. H. Park, and J. Kong*, “Alternative hole transport layer for both ITO- and graphene-based organic solar cells”, Adv. Energy Mater., 2014, 4, 1301280 Link

Prior to UNIST

12. H. Park, Y. Shi, and J. Kong*, “Application of Solvent Modified PEDOT:PSS to Graphene Electrodes in Organic Solar Cells”, Nanoscale, 2013, 5(19), 8934-8939 Link

11. X. Li, D. Xie, H. Park, T. H. Zeng, K. Wang, J. Wei, M. Zhong, D. Wu, J. Kong, and H. Zhu*, “Anomalous Behaviors of Graphene Transparent Conductors in Graphene-Silicon Heterojunction Solar Cells”, Adv. Energy Mater., 2013, 3(8), 1029-1034 Link

10. H. Park, S. Chang, M. Smith, S. Gradečak, and J. Kong*, “Interface Engineering of Graphene for Universal Applications as Both Anode and Cathode in Organic Solar Cells”, Sci. Rep., 2013, 3, 1581 Link

9. X. Li, D. Xie, H. Park, M. Zhu, T. H. Zeng, K. Wang, J. Wei, D. Wu, J. Kong, and H. Zhu*, “Ion doping of graphene for high-efficiency heterojunction solar cells”, Nanoscale, 2013, 5(5), 1945-1948 Link

8. H. Park,S. Chang, J. Jean, J. J. Cheng, P. T. Araujo, M. Wang, M. G. Bawendi, M. S. Dresselhaus, V. Bulović, J. Kong, and S. Gradečak*, “Graphene Cathode-based ZnO Nanowire Hybrid Solar Cells”, Nano Lett., 2013, 13(1), 233-239 Link

7. K.-J. Lee, H. Park, J. Kong, and A. Chandrakasan, “Demonstration of a Subthreshold FPGA using Monolithically Integrated Graphene Interconnects”, IEEE Trans. Electron Devices, 2013, 60(1), 383-389 Link

6. H. Park, R. M. Howden, M. C. Barr, V. Bulović, K. Gleason*, and J. Kong*, “Organic Solar Cells with Graphene Electrodes and Vapor Printed Poly(3,4-ethylenedioxythiophene) as the Hole Transporting Layers”, ACS Nano, 2012, 6(7), 6370-6377 Link

5. H. Park, P. R. Brown, V. Bulović, and J. Kong*, “Graphene as Transparent Conducting Electrodes in Organic Photovoltaic: Studies in Graphene Morphology, Hole Transporting Layers, and Counter Electrodes”, Nano Lett., 2012, 12(1), 133-140 Link

4. H. Park, J. A. Rowehl, K. K. Kim, V. Bulović, and J. Kong*, “Doped graphene electrodes for organic solar cells”, Nanotechnology, 2010, 21, 505204 Link

3. K. K. Kim, A. Reina, Y. Shi, H. Park, L.-J. Li, Y. H. Lee*, and J. Kong*, “Enhancing the conductivity of transparent graphene films via doping”, Nanotechnology, 2010, 21, 285205 Link

2. R. J. Gilbert, H. Park, M. Rasponi, A. Redaelli, B. Gellman, K. A. Dasse, and T. Thorsen*, “Computational and functional evaluation of a microfluidic blood flow device”, ASAIO Journal, 2007, 53(4), 447-455 Link

1. H. Park, and K. R. Karim*, “Electron momentum distribution in multiply-ionized atoms as a function of atomic number and degree of ionization,” Physica Scripta, 2006, 73(1), 30-39 Link