PUBLICATION

Journals

E. Choi, S. Wieghold, C. A. R. Perini, Y. Luo, J.-P. Correa-Baena, S. D. Stranks* and J. E. Parker* “Multimodal Synchrotron X-ray Techniques using Hard X-ray Nanoprobe for Operando Investigations of Photovoltaic Devices”, J. Synchrotron Rad. 2025, 32(5), 1211-1219

M. Lee#, J. Lim#, E. Choi#, A. M. Soufiani, S. Lee, F-J. Ma, S. Lim, J. Seidel, D. H. Seo, J.-S. Park, W. Lee, J. Lim, R. F. Webster, J. Kim, D. Wang, M. A. Green, D. Kim, J. H. Noh*, X. Hao*, J. S. Yun*, “Highly Efficient Wide Bandgap Perovskite Solar Cells With Tunneling Junction by Self-Assembled 2D Dielectric Layer”, Advanced Materials, 2024, 2402053

E. Choi#, J.-W. Lee#, M. Anaya, A. Mirabelli, H. Shim, J. Strzalka, J. Lim, S. Yun, M. Dubajic, J. Lim, J. Seidel, R. E. Agbenyeke, C. G. Kim, N. J. Jeon, A. M. Soufiani*, H. H. Park*, J. S Yun*, “Synergetic Effect of Aluminium Oxide and Organic Halide Salts on 2D layer Formation and Stability Enhancement of Perovskite Solar Cells”, Advanced Energy Materials, 2023, 2301717 [Selected as the inside front cover (Adv. Energy Mater. 39/2023)]

E. Choi#, Y. Zhang#, A. M. Soufiani, M. Lee, R. F. Webster, P. J. Reece, J. Seidel, J.-H. Yun*, J. S. Yun*, “Exploration of sub-bandgap states in 2D halide perovskite single-crystal photodetector”, npj 2D materials and applications, 2022, 6, 43

M. Lee#, E. Choi#, J. Lim, A. M. Soufiani, M. Kim, D. Chen, M. A. Green, J. Seidel, S. Lim, J. Kim, X. Dai, R. Lee-Chin, B. Zheng, Z. Hameiri, J. Park*, X. Hao*, J. S. Yun*, “Enhanced Hole-Carrier Selectivity in Wide Bandgap Halide Perovskite PV Devices for Indoor IoT Applications”, Advanced Functional Materials, 2021, 2008908 

V. Karade#, E. Choi# M. G. Gang, H. Yoo, A. Lokhande, P. Babar, J. S. Jang, J. S. Yun, J. Park*, J. H. Kim*, “Achieving low VOC-deficit characteristics in Cu2ZnSn(S,Se)4 solar cells through improved carrier separation”, ACS Applied Materials & Interfaces, 2021, 13, 429-437

E. Choi, J.-H. Kim, B.-J. Kim, J. H. Jang, J. Kim*, N. Park*, “Development of Moisture-Proof Polydimethylsiloxane/Aluminum Oxide Film and Stability Improvement of Perovskite Solar Cells Using the Film”, RSC Advances, 2019, 9, 11737-11744

E. Choi, J. Kim, S. Lim, E. Han, A. W. Y. Ho-Baillie*, N. Park*, “Enhancing stability for organic-inorganic perovskite solar cells by atomic layer deposited Al2O3 encapsulation”, Sol. Energy Mater Sol. Cells, 2018, 188, 37-45

E. Choi, S. H. Eom, C. E. Song, S. Y. Nam, J. Lee, H. Y. Woo, I. H.  Jung*, S. C. Yoon*, C. Lee*, “Synthesis and Characterization of a wide bandgap polymer based on a weak donor-weak acceptor structure for dual applications in organic solar cells and organic photodetectors”, Organic Electronics, 2017, 46, 173-182

E. Choi, S. Y. Nam, C. E, Song, K.-J. Kong, C. Lee, I. H. Jung*, S. C. Yoon*, “Development of a julolidine-based interfacial modifier for efficient inverted polymer solar cells”, RSC Advances, 2015, 5, 107540-107546

Conferences 

E. Choi et al., Development for X-ray beam-induced current measurements on the hard X-ray nanoprobe beamline at Diamond Light Source, 12-16th August 2024, XRM 2024, Lund, Sweden (Poster presentation)

E. Choi et al., Synergetic Effect of Aluminium Oxide and Organic Halide Salts on Surface Passivation and Stability Enhancement of Perovskite Solar Cells, 5th-7th December 2023, Materials Research Society (MRS) Fall, Boston, US (Poster presentation) 

E. Choi et al., Effect of Sub-Bandgap States in 2D Halide Perovskite Photodetector, 23rd-25th May 2022, Materials Research Society (MRS) Spring, Hawaii, US (Oral presentation)

E. Choi et al., Effect of Edge States for Optical and Electrical Properties in Two-Dimensional Bromide Halide Perovskite, 13th-15th December 2021, 31st International PV Science and Engineering Conference (PVSEC-31), Sydney, Australia (Oral presentation)

E. Choi et al., Exploration of Sub-Bandgap States in 2D Halide Perovskite Single-Crystal Photodetector, 26th-30th September 2022, 8th World Conference on Photovoltaic Energy Conversion (WCPEC-8), Milan, Italy (Poster presentation)

Seminar

E. Choi, Nanoscale microscopy techniques on perovskite systems at Korea Electronics Technology Institute (KETI) (9th September 2025)

E. Choi, Exploring Perovskite Systems with Nanoscale Microscopy at Kyung Hee University (21st February 2025)

E. Choi, Nanoscale microscopy techniques on perovskite system, 2024 University of Science and Technology (UST) Global Mentoring Conference. (26th August 2024)

E. Choi, Progress toward understanding intrinsic properties of perovskite devices with the Hard X-ray nanoprobe, PDRA/PhD Seminar at Diamond Light Source (5th April 2024)

E. Choi, Exploring nanoscale optoelectronic properties of perovskite-based devices by using scanning probe microscopy at Korea Research Institute of Chemical Technology (KRICT) (18th January 2023)

E. Choi,  Exploring nanoscale optoelectronic properties of perovskite-based devices by using scanning probe microscopy at Korea Electronics Technology Institute (KETI) (13th January 2023)