Publications

[31] H.-S. Kim and N.-G. Park, Importance of tailoring lattice strain in halide perovskite crystals, NPG Asia Mater., 2020, 12, 78.

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[30] H.-S. Kim, A. Hagfeldt and N.-G. Park, Morphological and compositional progress in halide perovskite solar cells, Chem. Commun., 2019, 55, 9, 1192-1200.

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[29] J.-Y. Seo, J. Choi, H.-S. Kim, J. Kim, J.-M. Yang, C. Cuhadar, J. S. Han, S.-J. Kim, D. Lee, H. W. Jang and N.-G. Park, Wafer-Scale reliable switching memory based on 2-dimensional layered organic-inorganic halide perovskite, Nanoscale, 2017, 9, 15278-15285

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[28] A.-N. Cho, N. Chakravarthi, K. Kranthiraja, S. S. Reddy, H.-S. Kim, S.-H. Jin and N.-G. Park, Acridine-based novel hole transporting material for high efficiency perovskite solar cells, J. Mater. Chem. A, 2017, 5, 7603-7611.

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[27] X. Zhao, H.-S. Kim, J.-Y. Seo and N.-G. Park, Effect of Selective Contacts on the Thermal Stability of Perovskite Solar Cells, ACS Appl. Mater. Interfaces, 2017, 9, 7148-7153.

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[26] H.-S. Kim, J.-Y. Seo and N.-G. Park, Impact of Selective Contacts on Long-Term Stability of CH₃NH₃PbI₃ Perovskite Solar Cells, J. Phys. Chem. C, 2016, 120, 27840-

27848.

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[25] J.-W. Lee, H.-S. Kim, H. Shin, H. S. Jung, P. J. Yoo, J. H. Park, D.-Y. Jung and N.-G. Park, A Sharp Focus on Perovskite Solar Cells at Sungkyun International Solar Forum (SISF), ACS Energy Lett., 2016, 1, 500-502.

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[24] H.-S. Kim, J.-Y. Seo and N.-G. Park, Material and Device Stability in Perovskite Solar Cells, ChemSusChem, 2016, 9, 2528-2540.

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[23] Q. Chen, H. Liu, H.-S. Kim, Y. Liu, M. Yang, N. Yue, G. Ren, K. Zhu, S. Liu, N.-G. Park, and Y. Zhang, Multiple-stage structure transformation of organic-inorganic hybrid perovskite CH₃NH₃PbI₃, Phys. Rev. X, 2016, 6, 031042.

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[22] ​A.-N. Cho, H.-S. Kim, T.-T. BUI, F. Goubard, X. Sallenave, and N.-G. Park, Role of LiTFSI in High Tg Triphenylamine-based Hole Transporting Material in Perovskite Solar Cell, RSC Adv., 2016, 6, 68553-68559.

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[21]​ H. Kim, H.-S. Kim, J. Ha, N.-G. Park, and S. Yoo, Empowering Semi-Transparent Solar Cells with Thermal-Mirror Functionality, Adv. Energy Mater., 2016, 6 (14), 1502466.

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[20]​ J.-M. Cha, J.-W. Lee, D.-Y. Son, H.-S. Kim, I.-H. Jang, and N.-G. Park, Mesoscopic perovskite solar cells with an admixture of nanocrystalline TiO2 and Al2O3: role of interconnectivity of TiO₂ in charge collection, Nanoscale, 2016, 8, 6341-6351.

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[19]​ J.-W. Lee, H.-S. Kim, and N.-G. Park, Lewis Acid–Base Adduct Approach for High Efficiency Perovskite Solar Cells, Acc. Chem. Res., 2016, 49, 311–319.

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[18]​ R. Ohmann, L. K. Ono, H.-S. Kim, H. Lin, M. V. Lee, Y. Li, N.-G. Park, and Y. Qi, Real-space imaging of the atomic structure of organic-inorganic perovskite, J. Am. Chem. Soc., 2015, 137, 16049-16054.

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[17]​ H.-S. Kim, I.-H. Jang, N. Ahn, M. Choi, A. Guerrero, J. Bisquert, and N.-G. Park, Control of I–V Hysteresis in CH3NH3PbI3 Perovskite Solar Cell, J. Phys. Chem. Lett., 2015, 6, 4633-4639.

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[16] ​J.-W. Lee, D.-H. Kim, H.-S. Kim, S.-W. Seo, S. M. Cho and N.-G. Park, Formamidinium and Cesium Hybridization for Photo- and Moisture-Stable Perovskite Solar Cell, Adv. Energy Mater., 2015, 5, 1501310.

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[15]​ D.-Y. Son, K.-H. Bae , H.-S. Kim and N.-G. Park, Effects of Seed Layer on Growth of ZnO Nanorod and Performance of Perovskite Solar Cell, J. Phys. Chem. C, 2015, 119 (19), 10321–10328.

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[14] ​H.-S. Kim, S. K. Kim, B. J. Kim, K.-S. Shin, M. K. Gupta, H. S. Jung, S.-W. Kim, and N.-G. Park, Ferroelectric Polarization in CH₃NH₃PbI₃ Perovskite, J. Phys. Chem. Lett., 2015, 6, 1729–1735.

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[13] ​H. Uzu, M. Ichikawa, M. Hino, K. Nakano, T. Meguro, J. L. H. andez, H.-S. Kim, N.-G. Park, and K. Yamamoto, High efficiency solar cells combining a perovskite and a silicon heterojunction solar cells via an optical splitting system, Appl. Phys. Lett., 2015, 106, 013506.

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[12] ​H.-S. Kim and N.-G. Park, Parameters Affecting I-V Hysteresis of CH₃NH₃PbI₃ Perovskite Solar Cells: Effects of Perovskite Crystal Size and Mesoporous TiO₂ Layer, J. Phys. Chem. Lett., 2014, 5, 2927-2934.

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[11] J.-H. Im, H.-S. Kim, and N.-G. Park, Morphology-photovoltaic property correlation in perovskite solar cells: One-step versus two-step deposition of CH3NH3PbI3, APL Mater., 2014, 2, 081510​.

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​[10] D.-Y. Son, J.-H. Im, H.-S. Kim, and N.-G. Park, 11% Efficient Perovskite Solar Cell Based on ZnO Nanorods: An Effective Charge Collection System, J. Phys. Chem. C, 2014, 118, 16567-16573.

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[9] T.-Y. Lee, H.-S. Kim, and N.-G. Park, Evaluation of Limiting Factors Affecting Photovoltaic Performance of Low-Temperature-Processed TiO2 Films in Dye-Sensitized Solar Cells, ChemPhysChem, 2014, 15, 1098-1105.

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[8] H.-S. Kim, S. H. Kim, and N.-G. Park, Organolead Halide Perovskite: New Horizons in Solar Cell Research, J. Phys. Chem. C, 2014, 118, 11, 5615-5625.

[7] H.-S. Kim, I. M.-Sero, V. G.-Pedro, F. F.-Santiago, E. J. J.-Perez, and N.-G. Park, J. Bisquert, Mechanism of carrier accumulation in perovskite thin-absorber solar cells, Nature Commun., 2013, 4, 2242​.

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[6] H.-S. Kim, J.-W. Lee, N. Yantara, P. P. Boix, S. A. Kulkarni, S. Mhaisalkar, M. Gratzel, and N.-G. Park, High efficiency solid-state sensitized solar cell-based on submicrometer rutile TiO2 nanorod and CH3NH3PbI3 perovskite sensitizer, Nano Lett., 2013, 13, 2412-2417​.

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[5] ​H.-S. Kim, C.-R. Lee, J.-H. Im, K.-B. Lee, T. Moehl, A. Marchioro, S.-J. Moon, R. Humphry- Baker, J.-H. Yum, J. E. Moser, M. Gratzel, and N.-G. Park, Lead iodide perovskite sensitized all-solid-state submicron thin film mesoscopic solar cell with efficiency exceeding 9%, Sci. Rep., 2012, 2, 591.

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[4] H.-S. Kim, C.-R. Lee, I.-k Jang, W. Kang, and N.-G. Park, Effect of overlayer thickness of hole transport material on photovoltaic performance in solid-sate dye-sensitized solar cell, Bull. Korean Chem. Soc., 2012, 33, 2, 670-674​.

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​[3] H.-S. Kim, S.-B. Ko, I.-H. Jang, and N.-G. Park, Improvement of mass transport of the [Co(bpy)₃]II/III redox couple by controlling nanostructure of TiO₂ films in dye-sensitized solar cells, Chem. Commun., 2011, 47, 12637-12639.

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[2]​ C.-R. Lee, H.-S. Kim, I.-H. Jang, J.-H. Im, and N.-G. Park, Pseudo first-order adsorption kinetics of N719 dye on TiO2 surface, ACS Appl. Mater. Interfaces, 2011, 3, 1953-1957.

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[1] C.-R. Lee, H.-S. Kim, and N.-G. Park, Dependence of porosity, charge recombination kinetics and photovoltaic performance on annealing condition of TiO₂ films, Front. Optoelectron. China, 2011, 4, 59-64.