# S.S.Shin, S.J.Lee, S.I.Seok, "Exploring wide bandgap metal oxides for perovskite solar cells", APL Materials, 7, 2, 022401 (2019)

# A. Mehta, J. Im, B. Kim, H. Min, R. Nie, S. I. Seok, “Stabilization of Lead-Tin-Alloyed Inorganic-Organic Halide Perovskite Quantum Dots”, ACS Nano, 12, 12129-12139(2018)

# Y. Rong, Y. Hu, A. Mei, H. Tan, Makhsud I, Saidaminov, S. I. Seok, M. MeGehee, E. Sargent and H. Han, “ Challenges for commercializing perovskite solar cells”, Science, 361, 6408(2018)

# R. Nie, B. Kim, S. Hong, S. I. Seok, “Nanostructured Heterojunction Solar Cells Based on Pb2SbS2I3: Linking Lead Halide Perovskites and Metal Chalcogenides”, ACS Energy Lett, 3, 2376-2382 (2018)

# Q. Zhou, J. G. Park, R. Nie, A. K. Thokchom, D. Ha, J. Pan, S. I. Seok, T. Kim*, “Nanochannel-Assisted Perovskite Nanowires: From Growth Mechanisms to Photodetector Applications”,ACS Nano, 12, 8406-8414 (2018)

# Nam Joong Jeon, Hyejin Na, Eui Hyuk Jung, Tae-Youl Yang, Yong Guk Lee, Geunjin Kim, Hee-Won Shin, Sang Il Seok, Jaemin Lee & Jangwon Seo, "A fluorene-terminated hole-transporting material for highly efficient and stable perovskite solar cells", Nature Energy, 3, 682-689 (2018)

# B. Park, N. Kedem, M. Kulbak, D. Y. Lee, W. S. Yang, N. J. Jeon, J. Seo, G. Kim, K. J. Kim, T. J. Shin, G. Hodes*, D. Cahen, S. I. Seok, "Understanding how excess lead iodide precursor improves halide perovskite solar cell performance", Nature Comm., 9:3301 (2018).

# M. Jung, T. J. Shin, J. Seo, G. Kim, S. I. Seok, "Structural features and their functions in surfactant-armoured methylammonium lead iodide perovskites for highly efficient and stable solar cells", Energy Environ. Sci., 1, 2188-2197 (2018).

# Seok, S.I., Grätzel, M., Park, N.-G., "Methodologies toward Highly Efficient Perovskite Solar Cells", Small, 14, 1704177 (2018)

# Y. I. Lee, N. J. Jeon, B. J. Kim, H. Shim, T.‐Y. Yang, S. I. Seok, J. Seo, S. G. Im, “A Low‐Temperature Thin‐Film Encapsulation for Enhanced Stability of a Highly Efficient Perovskite Solar Cell”, Adv. Energy Mater. 8, 1701928 (2018).

# R. Nie, Yun, H., Paik, M., Mehta, A., Park, B., Choi, Y. C., & Seok, S. I., "Efficient Solar Cells Based on Light-Harvesting Antimony Sulfoiodide", Adv. Energy Mater, 8(7), 1701901 (2018)

# R. Nie, Mehta, A., Park, B., Kwon, H., Im, J., & Seok, S. I., "Mixed Sulfur and Iodide-Based Lead-Free Perovskite Solar Cells", J. Am. Chem. Soc., 140 (3), pp 872–875 (2018)

# Lee, S. J., Shin, S. S., Im, J., Ahn, T. K., Noh, J. H., Jeon, N. J., Seok, S. I., Seo, J. "Reducing Carrier Density in Formamidinium Tin Perovskites and Its Beneficial Effects on Stability and Efficiency of Perovskite Solar Cells", ACS Energy Letters, 3(1), 46-53 (2018)

# Park, B., Zhang, X., Johansson, E. M., Hagfeldt, A., Boschloo, G., Seok, S. I., & Edvinsson, T. "Analysis of crystalline phases and integration modelling of charge quenching yields in hybrid lead halide perovskite solar cell materials", Nano Energy, 40, 596-606 (2017)

# Y. C. Kim, T.-Y. Yang, N. J. Jeon, J. Im, S. Jang, T. J. Shin, H.-W. Shin, S. Kim, E. Lee, S. Kim, J. H. Noh, S. I. Seok, J. Seo*, “Engineering interface structures between lead halide perovskite and copper phthalocyanine for efficient and stable perovskite solar cells”, Energy Environ. Sci., 10, 2109-2116 (2017).

# W. S. Yang, B.-W. Park, E. H. Jung, N. J. Jeon, Y. C. Kim, D. U. Lee, S. S. Shin, J. Seo, E. K. Kim, J. H. Noh, S. I. Seok, "Iodide management in formamidinium lead halide-based perovskite layers for efficient solar cells", Science, 356, 167–171 (2017).

# S. S. Shin, E. J. Yeom, W. S. Yang, S. Hur, M. G. Kim, J. Im, J. Seo, J. H. Noh,S. I. Seok, "Colloidally prepared La-doped BaSnO3 electrodes for efficient, photostable perovskite solar cells", Science, 356, 1376–1379 (2017).

# Sheng Chen, Xiaoming Wen, Jae S. Yun, Shujuan Huang, Martin Green, Nam Joong Jeon, Woon Seok Yang, Jun Hong Noh, Jangwon Seo, Sang Il Seok, and Anita Ho-Baillie, "Spatial Distribution of Lead Iodide and Local Passivation on Organo-Lead Halide Perovskite", ACS Appl. Mater. Interfaces, 9, 7, 6072-6078 (2017)

# Eun JooYeom, Seong SikShin, Woon SeokYang, Seon JooLee, WenpingYin, DasomKim, Jun HongNoh, Tae KyuAhn and Sang IlSeok, "Controllable synthesis of single crystalline Sn-based oxides and their application in perovskite solar cells", J. Mater. Chem. A., 5, 79-86 (2017)

# Illhun Cho, Nam Joong Jeon, Oh KyuKwon, Dong WonKim, Eui HyukJung, Jun HongNoh, JangwonSeo, Sang Il Seok and Soo YoungPark, "Indolo[3,2-b]indole-based crystalline hole-transporting material for highly efficient perovskite solar cells", Royal Society Of Chemistry, 8, 734-741 (2017)

# Gopinath Mondal, Ananyakumari Santra, Pradip Bera, Moumita Acharjya, Sumanta Jana, Dipankar Chattopadhyay, Anup Mondal, Sang Il Seok, Pulakesh BeraEmail author, "A pyrazolyl-based thiolato single-source precursor for the selective synthesis of isotropic copper-deficient copper(I) sulfide nanocrystals: synthesis, optical and photocatalytic activity", J Nanopart Res, 18:311 (2016)

# Minsu Jung, Young Chan Kim, Nam Joong Jeon, Woon Seok Yang, Jangwon Seo, Jun Hong Noh, Sang Il Seok, "Thermal Stability of CuSCN Hole Conductor‐Based Perovskite Solar Cells", CHEMSUSCHEM, 9, 18, 2592-2596 (2016)

# Jae S. Yun, Jan Seidel, Jincheol Kim, Arman Magboubi Soufiani, Shujuan Huang, Jonathan Lau, Nam Joong Jeon, Sang Il Seok, Martin A. Green, Anita Ho-Baillie, "Critical Role of Grain Boundaries for Ion Migration in Formamidinium and Methylammonium Lead Halide Perovskite Solar Cells", ADVANCED ENERGY MATERIALS, 6, 13, 1600330 (2016)

# Seong Sik Shin, Woon Seok Yang, Eun Joo Yeom, Seon Joo Lee, Nam Joong Jeon, Young-Chang Joo, Ik Jae Park, Jun Hong Noh, and Sang Il Seok, "Tailoring of Electron-Collecting Oxide Nanoparticulate Layer for Flexible Perovskite Solar Cells", Journal of physical Chemistry letters, 7, 10, 1845-1851 (2016)

# S. J. Lee, S. S. Shin, Y. C. Kim, D. Kim, T. K. Ahn, J. H. Noh, J. Seo, and S. I. Seok, “Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells through SnF2−Pyrazine Complex”, J. Am. Chem. Soc., 138, 3974−3977 (2016).

# J. Seo, J. H. Noh, S. I. Seok, “Rational strategies for efficient perovskite solar cells”, Acc. Chem. Res., 49, 562–572 (2016).

# Y. C. Kim, N. J. Jeon, J. H. Noh, W. S. Yang, J. Seo, J. S. Yun, A. Ho-Baillie, S. Huang, M. A. Green, J. Seidel, T. K. Ahn, S. I. Seok, "Beneficial Effects of PbI2 Incorporated in Organo-Lead Halide Perovskite Solar Cells", Adv. Energy Mater. 6, 1502104 (2016).

Selected Publications (to 2015 year)

1) W. S. Yang, J. H. Noh, N. J. Jeon, Y. C. Kim, S. Ryu, J. Seo, S. I. Seok, “High-performance Photovoltaic Perovskite Layers Fabricated through Intramolecular Exchange”, Science, 348, 1234-1237 (2015).

2) S. S. Shin, W. S. Yang, J. H. Noh, J. H. Suk, N. J. Jeon, J. H. Park, J. S. Kim, W. M. Seong,S. I. Seok, “High-performance flexible perovskite solar cells exploiting Zn2SnO4 prepared in solution below 100°C”, Nature Comm., 6:7410, 1~8 (2015).

3) J. H. Park, J. Seo, S. Park, S. S. Shin, Y. C. Kim, N. J. Jeon, H.-W. Shin, T. K. Ahn, J. H. Noh, S. C. Yoon, C. S. Hwang, S. I. Seok, “Efficient CH3NH3PbI3 Perovskite Solar Cells Employing Nanostructured p-type NiO Electrode Formed by a Pulsed Laser Deposition”, Adv. Mater. 27, 4013-4019 (2015).

4) Y. C. Choi,S. I. Seok, Efficient Sb2S3-Sensitized Solar Cells via Single-Step Deposition of Sb2S3 Using S/Sb-Ratio-Controlled SbCl3-Thiourea Complex Solution, Adv. Funct. Mater., 25, 2892–2898 (2015).

5) N. J. Jeon, J. H. Noh, W. S. Yang, Y. C. Kim, S. Ryu, J. S. I. Seok, Seok, “Compositional engineering of perovskite materials for high-performance solar cells”, Nature, 517, 476-480 (2015).

6) N. J. Jeon, J. H. Noh, Y. C. Kim, W. S. Yang, S. Ryu, S. I. Seok, “Solvent-engineering for high performance inorganic-organic hybrid perovskite solar cells”, Nature Materials,13, 897-903 (2014).

7) Y. C. Choi, T. N. Mandal, W. S. Yang, Y. H. Lee, S. H. Im, J. H. Noh, S. I. Seok,“Sb2Se3-Sensitized Inorganic-Organic Heterojunction Solar Cells Fabricated using a Single-Source Precursor”, Angew. Chem. Int. Ed. 53, 1329-1333 (2014).

8) N. J. Jeon, H. G. Lee, Y. C. Kim, J. Seo, J. H. Noh, J. Lee, S. I. Seok, “o-Methoxy Substituents in Spiro–OMeTAD for Efficient Inorganic–Organic Hybrid Perovskite Solar Cells”, J. Am. Chem. Soc. 136, 7837−7840 (2014).

9) S. Ryu, J. H. Noh, N. J. Jeon, Y. C. Kim, W. S. Yang, J. Seo, S. I. Seok, “Voltage Output of Efficient Perovskite Solar Cells with high Open-Circuit Voltage and Fill Factor”, Energy Environ. Sci. 7, 2614-2618 (2014).

10) J. Seo, S. Park, Y. C. Kim, N. J. Jeon, J. H. Noh, S. C. Yoon, S. I. Seok, “Benefits of Very Thin PCBM and LiF Layer for Solution-Processed P-I-N Perovskite Solar Cells”, Energy Environ. Sci. 7, 2642-2646 (2014).

11) Y. C. Choi, Y. H. Lee, S. H. Im, J. H. Noh, T. N. Mandal, W. S. Yang, S. I. Seok, “Efficient Inorganic-Organic Heterojunction Solar Cells employing Sb2(Sx/Se1-x)3 Graded-Composition Sensitizers”, Adv. Energy Mater. 4, 1301680 (2014).

12) Y. C. Choi, D. U. Lee, J. H. Noh, E. K. Kim, S. I. Seok, “Highly improved Sb2S3sensitized-inorganic-organic heterojunction solar cells and quantification of traps by deep-level transient spectroscopy”, Adv. Funct. Mater. 24, 3587-3592(2014).

13) J. H. Heo, S. H. Im, J. H. Noh, T. N. Mandal, C.-S. Lim, J. A. Chang, Y. H. Lee, H.-j. Kim, A. Sarkar, M. K. Nazeeruddin, M. Gra¨tzel, S. I. Seok, “Efficient inorganic-organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors”, Nature Photonics, 7, 486-491 (2013).

14) J. H. Noh, S. H. Im, J. H. Heo, T. N. Mandal,S. I. Seok, “Chemical Management for Colourful, Efficient, and Stable Inorganic-Organic Hybrid Nanostructured Solar Cells”, Nano Lett., 13, 1764-1769 (2013).

15) J. A. Chang, S. H. Im, Y. H. Lee, H.-j. Kim, C.-S. Lim, J. H. Heo, S. I. Seok, “Panchromatic Photon-Harvesting by Hole-Conducting Materials in Inorganic−Organic Heterojunction Sensitized-Solar Cell through the Formation of Nanostructured Electron Channels”, Nano Lett. 12, 1863−1867 (2012).

Selected Patents, Total: > 50 patents

1) US 7887780 “Anatase Type TiO2 Nanorods and Its Preparation Method”

2) US 7611688 “Rutile Titania Nano Sol, and Process for Preparation Its”

3) Korean Patent 1168227 “Fabrication Method of Nanostructured Inorganic-Organic Heterojunction Solar Cells”

Book Chapter

1) Colloidal Quantum Dot Optoelectronics and Photovoltaics (Cambridge University Press, ISBN:978-0-5211-9826-4) - Chapter 11. “Semiconductor Sensitized TiO2 Mesoporous Solar cells” by Etgar Lioz, Hyo Joong Lee, Sang Il Seok, Md. K. Nazeeruddin, Michael Grätzel (2013).

2) Frontiers of Quantum Dot Solar Cells (CMC publishing, Japan, ISBN:978-4-7813-1628-5)- Chapter 4. “Quantum Dot Photovoltics in KRICT by Sang Il Seok (2012)