9. [Oral] Invited by Prof. Harish Bhaskaran, Annual Meeting of Wearable and Flexible Technologies (WAFT), "Micro/Nanostructured Flexible Sensors", Wolfson College, University of Oxford, Oxford, United Kingdom (2019.08.20)
8. [Oral] Invited by Prof. Xavier Crispin, "Hierarchical Micro/Nanostructured Hybrid Materials for Multifunctional and Flexible Photodetectors" Linköpings universitet, Norrköping, Sweden (2018.06.28)
7. [Oral] 2018 E-MRS Spring Meeting and Exhibit, European Materials Research Society, "Hierarchical Micro/Nanostructured Hybrid Materials for High-Performance and Multifunctional Photodetectors" Strasbourg, France (2018.06.18-22)
6. [Oral] The 4th International Conference on Advanced Electromaterials (ICAE 2017), The Korean Institute of Electrical and Electronic Material Engineers (KIEEME), "Omnidirectional Photodetectors Based on Hierarchical ZnO Nanowires on Flexible Honeycomb-structured Si Membranes" Jeju, Korea (2017.11.21-24)
5. [Participant] 2016 Inter-Academy-Seoul Science Forum (IASSF), The Korean Academy of Science and Technology, "Invited as a promising young scientist of Korea" Seoul, Korea (2016.11.02-03)
4. [Oral] The 16th International Meeting on Information Display (IMID), The Korean Information Display Society, "Hierarchically Designed ZnO Nanowire Arrays on Honeycomb-structured Si Membranes for Omnidirectional and Flexible Photodetectors" Jeju, Korea (2016.08.23-26)
3. [Poster] 2015 MRS Fall Meeting, Materials Research Society, "Hierarchically Designed ZnO Nanowire Arrays on Si Honeycomb Structures for Highly Efficient Omnidirectional and Flexible Photodetectors" Boston, Massachusetts, USA (2015.11.29-12.04)
2. [Poster] The 15th International Meeting on Information Display (IMID), The Korean Information Display Society, "Hierarchical ZnO Nanowire Arrays on Si Honeycomb Structures for Flexible and Omnidirectional Photodetectors" Daegu, Korea (2015.08.18-21)
1. [Participant] 2014 MRS Spring Meeting, Materials Research Society, "Epitaxial Transfer Printing of High-Performance III-V/Si Hetero-Junction Photodiodes" San Francisco, California, USA (2014.04.21-25)
6. [Poster] 2018 Annual Fall Meeting of The Polymer Society of Korea, The Polymer Society of Korea, "Multifunctional and Flexible Photodetectors Based on Hierarchical Micro/Nanostructured Hybrid Materials" Gyeongju, Korea (2018.10.10-12)
5. [Poster] KIEEME Annual Summer Conference 2016, The Korean Institute of Electrical and Electronic Material Engineers (KIEEME), "Hierarchical ZnO Nanowires on Honeycomb-Shaped Si Membranes for Highly Efficient Omnidirectional and Flexible Photodetectors" Gyeongju, Korea (2016.06.22-24)
4. [Oral] 2016 MRS-K Spring Meeting, Materials Research Society of Korea, "Omnidirectional and Flexible Photodetector Based on Hierarchical ZnO Nanowires on Honeycomb-Structured Si Membranes" Yeosu, Korea (2016.05.18-20)
3. [Poster] 2015 Annual Spring Meeting of The Polymer Society of Korea, The Polymer Society of Korea, "Fabrication of Hierarchical Nanowire on Honeycomb Structures for Flexible and Omnidirectional n-ZnO NWs/p-Si Heterostructure Photodetectors" Daejeon, Korea (2015.04.08-10)
2. [Poster] 2014 Annual Fall Meeting of The Polymer Society of Korea, The Polymer Society of Korea, "Omnidirectional and Flexible n-ZnO/p- Si Heterojunction Photodetectors" Jeju, Korea (2014.10.06-08)
1. [Participant] 2013 Annual Fall Meeting of The Polymer Society of Korea, The Polymer Society of Korea, "Wrinkling behavior of III-V semiconductor nanomembranes on micropatterned soft substrates" Changwon, Korea (2013.10.10-11)