Conference

Invited talk & seminar (21)

2025, Gyeongsang National University, Towards space-ready perovskite solar cells: Strategies for radiation and thermal shock resilience

2025, Gyeongsang National University, Ferroelectric origin & mechanism of enhanced charge seperation in perovskite solar cells

2025, Korea Institute of Energy Technology, Analysis of hybrid perovskite solar cells using scanning probe microscopy 

2025, Korean Society of Microscopy, Ferroic domains and nanoscale properties in hybrid perovskites 

2025, The Korean Solar Energy Society, Efficient charge separation in perovskite solar cells utilizing 2D ferroelectric domains 

2025, Korea Research Institute of Chemical Technology, Exploring nanoscale properties in metal halide perovskites using advanced scanning probe microscopy techniques 

2025, Korea Photovoltaic Society, Interface Defect and Charge Carrier Transport Properties in Substrate-dependent p-type Tunnel Oxide Passivated Contact Layers

2025, Symposium on Dielectric Consortium, Efficient Charge Separation induced by 2D Molecular Ferroelectrics in Hybrid Perovskite Solar Cells

2024, AFORE, Ferroic Properties in Mixed Halide Perovskites for Advanced Optoelectronics

2024, Korea Society of LEDs and Optoelectronics, Ferroic Mixed Halide Perovskite Optoelectronics

2024, Chungnam National University (CNU), Ferroelectric 2D Layered Perovskites

2024, CBNU-YU Joint Symposium, Nanoscale Properties in Metal Halide Perovskites

2024, Chungbuk National University (CBNU-BK lecture), Carbon Neutrality and Solar Cells

2024, Chungbuk National University (CBNU-Semiconductor Lecture), Nanoscale Properties in Hybrid Perovskites via SPM

2024, The Korean Physical Society-Chungbuk (KPS-Chungbuk), Nanoscale Functional Properties in Hybrid Perovskites

2023, Korea Institute of Science and Technology (KIST), Nanoscale Interfacial Engineering in Hybrid Perovskites

2023, SOFTPV, Nanoscale Properties in Hybrid Perovskites & their Indoor PV Applications

2023, Korea University (KU), Nanoscale Engineering in Hybrid Perovskites

2023, Korean Society of Photoscience, Ferroic Hybrid Perovskites

2023, Korea Photovoltaic Society, Development of Highly Efficient p-TOPCon Solar Cells

2022, The Korean Physical Society, Functional Imaging of Hybrid Perovskites Materials

Domestic & International Conference, Oral (17) & Poster (41)

2025, Global Photovoltaic Conference (September 1-3, 2025, Daejeon, Korea)  

·  Poster presentation; “Nanoscale evaluation of MAPbBr3 single crystals from different growth methods for photodetectors ” by Seung Hyeon Chae

· Poster presentation; “Probing degradation mechanisms in wide-bandgap perovskite/silicon tandem solar cells using wavelength-selective KPFM under accelerated aging conditions ” 

· Poster presentation; “Interface defect and charge carrier transport properties in substrate-dependent p-type tunnel oxide passivated contact layers ”

2025, The Korean Society for New and Renewable Energy (May 21-23, 2025, Busan, Korea) 

· Oral presentation; “An SPM-based Nanoscale Analysis to Unraveling the Degradation Mechanisms of Dry-Processed Silicon/Perovskite Tandem Solar Cells” (Special session) 

2025, The Korean Solar Energy Society (April 16-18, 2025, Muchangpo, Korea) · Poster presentation; “Study on passivation properties for the fabrication of rear-emitter solar cells based on TOPCon structure” 

2025, Korea Photovoltaic Society (March 27-28, 2025, Busan, Korea)

· Poster presentation; “Post-annealing effects on phosphorus doped polysilicon passivation in TOPCon structure for enhanced crystalline silicon solar cell performance”

2024, Global Photovoltaic Conference (August 11-14, 2024, Daejeon, Korea)

· Poster presentation; “Toward high passivation of tunnel oxide passivated contacts for high-efficiency rear emitter p-type crystalline silicon solar cells”

2023, Global Photovoltaic Conference (September 6-8, 2023, Gwangju, Korea)

· Oral presentation; “Nanoscale functional imaging in photovoltaic materials”

· Oral presentation; “Recent researches on industrial silicon solar cells in KIER”

· Poster presentation; “Residual gas analysis for in-situ monitoring of industrial-scale chemical vapor deposition”

· Poster presentation; “Study on the implications of hydrogen concentration in SiNx thin films for TOPCon solar cells performance”

· Poster presentation; “Thermal annealing profile study for optimizing tunnel oxide passivated silicon solar cells”

· Poster presentation; “Structural and material properties of Ag/Al metal contact on p+ emitter for highly efficient TOPCon solar cells”

2023, The Korean Solar Energy Society (April 19-20, 2023, Gyeongju, Korea)

· Oral presentation; “The method for residual gas analysis of PSG thin film growth in pilot scale CVD for real-time monitoring”

· Poster presentation; “Study on thermal treatment methods to enhance the passivation of tunnel oxide layers in silicon solar cells”

· Poster presentation; “Study on optimizing electrode processes for enhancing the efficiency of n-TOPCon solar cells”

· Poster presentation; “Study on surface defects and charge transport characteristics of the poly-Si layer in p-TOPCon solar cells”

· Poster presentation; “Analysis of photoluminescence images in perovskite solar cells using particle clustering optimization algorithms”

· Poster presentation; “Correlation between boron emitter doping profiles and the properties of Ag/Al electrodes under varying thermal conditions”

2023, Korea Photovoltaic Society (March 30-31, 2023, Busan, Korea)

· Oral presentation; “Optimizing electrode processing and elucidating the electrode formation mechanisms for achieving high-efficiency TOPCon solar cells”

· Oral presentation; “The method for residual gas analysis in real-time monitoring of PSG thin film growth during industrial CVD”

· Poster presentation; “The relationship between the doping profile of boron emitters and the properties of Ag/Al electrodes in silicon solar cells”

· Poster presentation; “Analysis of two-dimensional (2D) photoluminescence images in perovskite solar cells”

· Poster presentation; “Optimal solar cell sorting method for high module production reliability”

2022, Korea Photovoltaic Society (November 24-26, 2022, Busan, Korea)

· Oral presentation; “Si-substrate-dependent charge carrier transport properties at the rear side of the TOPCon solar cell structures”

· Poster presentation; “The two-dimensional characterization of perovskite solar cells using particle clustering optimization algorithms and photoluminescence imaging techniques”

· Poster presentation; “In-situ monitoring of the PSG deposition process using residual gas analysis”

· Poster presentation; “Analyzing the characteristics of SiNx layers based on their hydrogen content and bonding structure”

· Poster presentation; “Impact of surface concentration on the passivation characteristics of boron emitters in silicon solar cells”

· Poster presentation; “Ag/Al electrode development for high-efficiency TOPCon solar cells”

2022, The Korean Solar Energy Society (October 19-20, 2022, Jeju, Korea)

· Oral presentation; “Electrode optimization profile for high-efficiency TOPCon solar cells”

· Poster presentation; “Logic-based reliable current-voltage curve measurement and maximum power point tracking for perovskite solar cells”

· Poster presentation; “Analysis of the characteristics of SiN layers in terms of passivation and contact resistance under varying deposition temperature conditions for solar cells”

· Poster presentation; “Contact resistance characteristics of the rear electrode paste in p-TOPCon solar cells”

· Poster presentation; “Study on the effects of Al2O3 annealing on the passivation characteristics of crystalline silicon solar cells”

· Poster presentation; “Study on the effects of dry oxidation processes on the boron emitter doping profile”

2021, 2021 ISAF-ISIF-PFM Joint Conference (May 16-20, 2021, Sydney, Australia)

· Oral presentation; “Ferroelectric and Carrier Transport Properties in Strain-engineered Two-Dimensional Lead Iodide Perovskites”

2019, Global Photovoltaic Conference (March 13-15, 2019, Gwangju, Korea)

· Oral Presentation; “Light- and Bias- induced ferroelastic domains in halide perovskite solar cells”

· Oral Presentation; “Facet-dependent optoelectronic properties in halide perovskite single crystals”

· Poster Presentation; “Local optoelectronic properties in halide perovskites”

2018, The Materials Research Society Fall Meeting (November 25-30, 2018, Boston, MA, USA)

· Oral Presentation; “Light- and Bias-Induced Structural Variations in Metal Halide Perovskites”

· Poster Presentation; “Role of Domain Walls in Halide Perovskite Solar Cells”

2017, The 11th LEEM/PEEM (October 30-November 3, 2018, Chongqing, China)

· Oral Presentation; “LEEM imaging of in-plane ferroelectricity in van der Waals In2Se3”

2017, The 41st Annual Condensed Matter and Materials Meeting (Jan 31- Feb 3, 2017, Wagga Wagga, NSW, Australia)                                                                  

· Poster presentation; “Conduction Behaviour at Domains, Domain walls, and Grain Boundaries in Pure and La-doped BaTiO3 Ceramics”

2013, The Materials Research Society of Korea Spring Meeting (May 23-24, 2013, Yeosu, Korea)

· Poster presentation; “A Study on γ-Al2O3/FeCrAl Foam Catalyst Support for Methane Steam Reforming”

2013, The Korean Institute of Metals and Materials Spring Meeting (April 25-26, 2013, Jeju, Korea)

· Poster presentation; “γ-Al2O3/FeCrAl Foam Catalyst Support Keeping Long Term Stability at High Temperature”

2012, The Korean Institute of Metals and Materials Fall Meeting (October 25-26, 2012, Changwon, Korea)

· Poster presentation; “A Study on Properties of γ-Al2O3/FeCrAl Foam Catalyst Support Evaluated by DME Partial Oxidation”

2012, 4th EuCheMS Chemistry Congress (August 26-30, 2012, Prague, Czech)

· Oral Presentation; “Keeping High Surface Area of Catalytic Supports at High Temperature with FeCrAl Metallic Foam”

2012, The Korean Institute of Metals and Materials Spring Meeting (April 26-27, 2012, Hoengseong, Korea)

· Poster presentation; “A Study on γ-Al2O3/FeCrAl Foil as Effective Catalyst Support under Thermal Stress”

2012, The Materials Research Society Spring Meeting (April 9-13, 2012, San Francisco, CA, USA)

· Oral Presentation; “Nanoporous Pt Thin Films with Controlled Porosity for Catalytic Applications”

2011, The Korean Institute of Metals and Materials Fall Meeting (October 27-28, 2011, Daejeon, Korea)                    

· Poster presentation; “A Study on the Catalytic Performance of Impregnated Cu/Cr over γ-alumina by DME Partial Oxidation”

2011, The Korean Institute of Metals and Materials Fall Meeting (October 27-28, 2011, Daejeon, Korea)

· Poster presentation; “The Process Applied for CVD Method through TiCl4 Reduction Used by Mg (Mg-Ca) for Pure Ti Fabrication”

2011, The 7th International Conference on Porous Metals and Metallic Foams, MetFoam 2011 (September 18-21, 2011, Busan, South Korea)

· Oral Presentation; “Study on Properties of γ-alumina Washcoated Porous Metallic Foam as Catalytic Support”

2011, The 7th International Conference on Porous Metals and Metallic Foams, MetFoam 2011 (September 18-21, 2011, Busan, South Korea)

· Oral Presentation; Nanoporous Pt Thin Films with Controlled Porosity for Catalytic Applications

2011, The Materials Research Society of Korea Spring Meeting (May 26-27, 2011, Jeju, Korea)

· Poster presentation; “A Study on Dispersion of Pt onto Porous γ-Al2O3 by Ion Implantation”

2011, The Korean Institute of Metals and Materials Spring Meeting (April 21-22, 2011, Daegu, Korea)

· Poster presentation; “A New Manufacturing Method for Fe-Si Magnetic Powders Using Modified Pack-Cementation Process”

2010, The Korean Institute of Metals and Materials Fall Meeting (October 27-28, 2010, Changwon, Korea)

· Poster presentation; “A Study on the Valid Thickness of Porous γ-alumina for DME Reforming”