Publications

[20] S.-G. Kim, S.-H. Lee, I. S. Yang, Y.-J. Park, K. Park, J.-W. Lee, N.-G. Park, Effect of Fluorine Substitution in a Hole Dopant on the Photovoltaic Performance of Perovskite Solar Cells, ACS Energy Lett. 2022, 7, 741-748.

[19] J.-H. Kim, S.-G. Kim, N.-G. Park, Effect of chemical bonding nature of post-treatment materials on photovoltaic performance of perovskite solar cells, ACS Energy Lett., 2021, 6, 3435-3442.

[18] S.-G. Kim, J.-H. Kim, P. Ramming, Y. Zhong, K. ​Schötz, S. J. Kwon, S. Huettner, F. Panzer, N.-G. Park, How antisolvent miscibility affects perovskite film wrinkling and photovoltaic properties, Nat. Commun., 2021, 12, 1, 1-10.

[17] S.-G. Kim, T. H. Le, T. de Monfreid, F. Goubard, T.-T. Bui, N.-G. Park, Capturing mobile lithium ions in a molecular hole transporter enhances the thermal stability of perovskite solar cells, Adv. Mater., 2021, 2007431

[16] D.-H. Kang, S.-G. Kim, Y.C. Kim, I.T. Hwan, H.J. Jang, J.Y. Lee, N.-G. Park, CsPbBr3/CH3NH3PbCl38 Double Layer Enhances Efficiency and Lifetime of Perovskite Light-Emitting Diodes, ACS Energy Lett., 2020, 5, 2191-2199

[15] Y. Zhang, S. Seo, S.Y. Lim, Y. Kim, S.-G. Kim, D.-K. Lee, S.-H. Lee, H. Shin, N.-G. Park, Achieving Reproducibility and High Efficiency (> 21%) Perovskite Solar Cells with a Pre-synthesized FAPbI3 Powder, ACS Energy Lett., 2020, 5, 2, 360-366

[14] J. Chen, X. Zhao, S.-G. Kim, N.-G. Park, Multifunctional Chemical Linker Imidazoleacetic Acid Hydrochloride for 21% Efficient and Stable Planar Perovskite Solar Cells, Adv. Mater., 2019, 31, 1902902

[13] G. S. Shin, S.-G. Kim, Y. Zhang, N.-G. Park, A Correlation between Iodoplumbate and Photovoltaic Performance of Perovskite Solar Cells Observed by Precursor Solution Aging, Small Methods, 2019, 4, 1900398

[12] J.-W. Lee, S.-G. Kim, J.-M. Yang, Y. Yang, N.-G. Park, Verification and mitigation of ion migration in perovskite solar cells, APL Mater., 2019, 7, 041111

[11] S.-G. Kim, C. Li, A. Guerrero, J.-M. Yang, Y. Zhong, J. Bisquert, S. Huettner, N.-G. Park, Potassium ions as a kinetic controller in ionic double layers for hysteresis-free perovskite solar cells, J. Mater. Chem. A, 2019, 7 (32), 18807-18815

[10] E.-S. Choi, J.-M. Yang, S.-G. Kim, C. Cuhadar, S.-Y. Kim, S.H. Kim, D. Lee, N.-G. Park, The effect of compositional engineering of imidazolium lead iodide on the resistive switching properties, Nanoscale,  2019, 11 (30), 14455-14464

[9] J. Chen, S.-G. Kim, X. Ren, H.S. Jung, N.-G. Park, Effect of bidentate and tridentate additives on the photovoltaic performance and stability of perovskite solar cells, J. Mater. Chem. A, 2019, 7 (9), 4977-4987

[8] Y. Zhang, S.-G. Kim, D. Lee, H. Shin, N.-G. Park, Bifacial stamping for high efficiency perovskite solar cells, Energy & Environ. Sci., 2019, 12 (1), 308-321

[7] J. Chen, S.-G. Kim, N.-G. Park, FA0.88Cs0.12PbI3−x(PF6)x Interlayer Formed by Ion Exchange Reaction between Perovskite and Hole Transporting Layer for Improving Photovoltaic Performance and Stability, Adv. Mater., 2018, 30, 1801948

[6] S.-G. Kim, J. Chen, J.-Y. Seo, D.-H. Kang, N.-G. Park, Rear surface passivation by melaminium iodide additive for stable and hysteresis-less perovskite solar cells. ACS Appl. Mater. Interfaces, 2018, 10 (30), 28372-25383

[5] C. Cuhadar, S.-G. Kim, J.-M. Yang, J.-Y. Seo, D. Lee, N.-G. Park, All-Inorganic Bismuth Halide Perovskite-like Materials A3Bi2I9 and A3Bi1.8Na0.2I8.6 (A = Rb and Cs) for Low-Voltage Switching Resistive Memory, ACS Appl. Mater. Interfaces, 2018, 10 (35), 29741-29749

[4] Y. Zhang, S.-G. Kim, D.-K. Lee, N.-G. Park, CH3NH3PbI3 and HC(NH2)2PbI3 Powders Synthesized from Low-Grade PbI2 : Single Precursor for High-Efficiency Perovskite Solar Cells, ChemSusChem, 2018, 11, 1813-1823​

[3] P. Zhao, M. Han, W. Yin, X. Zhao, S.-G. Kim, Y. Yan, M. Kim, Y. J. Song, N.-G. Park, H. S. Jung, Insulated interlayer for efficient and photostable electron-transport-layer-free perovskite solar cells, ACS Appl. Mater. Interfaces, 2018, 10 (12), 10132–10140

[2] D.-Y. Son, S.-G. Kim, J.-Y. Seo, S.-H. Lee, D. Lee, N.-G. Park, Universal Approach toward Hysteresis−Free Perovskite Solar Cell via Defect Engineering, J. Am. Chem. Soc., 2018, 140 (4),1358–1364

[1] J.-W. Lee, S.-G. Kim, S.-H. Bae, D.-K. Lee, O. Lin, Y. Yang, N.-G. Park, The Interplay between Trap Density and Hysteresis in Planar Heterojunction Perovskite Solar Cells, Nano Lett., ,2017, 17 (7), 4270-4276