Chanyong Lee, Hyeyeon Jung, Janghan Na, Sungbin Kim, Juna Lee, and Sungyeon Heo*, “Mesostructure-Dependent Ionogel Infiltration in Electrochromic Nanocrystal Thin Films”, Nano Letters, 2026, 26, 11086-11093. [link]

Hyeyeon Jung, Seunghyun Lee, Sol Ahn*, and Sungyeon Heo*, “Colloidal WO2.72 Nanocrystals with Hexagonal Tunnels for Sodium-ion Supercapacitors”, Korean Journal of Chemical Engineering, 2026, 43, 2537-2545. [link]

Jaeyeon Jung, Janghan Na, Chanyong Lee, Hanseung Lee, Sangwoong Sim, Jinwoo Park, Dahye Shin*, Kyoung Jin Jung*, Sungyeon Heo*, “Broadband Flexible Metamaterial Absorber on Fabric Using 3D-Printed Conductive Filament Patterns”, Journal of Alloys and Compounds, 2026, 1062, 187658. [link]

Gi Hyo Sim+, Chanyong Lee+, Janghan Na+, Hyeyeon Jung, Changsoo Lee, MinJoong Kim, Ju Hun Park, Young-Woo Choi, Jong Hak Kim, Sungyeon Heo*, and Jae Hun Lee*,“In situ ligand stripping of CeO₂ nanocrystals in anion exchange membranes for enhanced water electrolysis”, Journal of Materials Chemistry A, 2026, 14, 14263-14274. (+Equal contribution) [link]

Janghan Na, Jaeyeon Jung, Delia J. Milliron, and Sungyeon Heo*,
“Unlocking Na⁺-Based Electrochromic Capacity in Hexagonal Tungsten Oxide Nanorods via Thermally Removable Dopants”, Nano Letters, 2025, 25, 17373–17380. [link]

Jaeyeon Jung, Juna Lee, Hanseung Lee, Sungyeon Heo*, “Influence of the arrangement of tungsten oxide nanorods on the mechanical properties of flexible electrochromic thin films”, Applied Surface Science, 2025, 719, 165008. [link]

Sungbin Kim, Jungchul Noh, and Sungyeon Heo*, “Assembly of ITO Nanocrystals into Nanotubes Using Polycarbonate Membranes for Dual-Band Electrochromic Modulation”, Korean Journal of Chemical Engineering, 2024, 41, 3053–3058. [link]

Keechul Kwon, Jae Hun Lee, Kihoon Kim, and Sungyeon Heo*, “Visible and near-infrared modulating tungsten suboxide nanorods electrochromic films in acidic aqueous electrolytes”, Heliyon, 2024, 10. [link]

Sungyeon Heo, ​Kwangdong Roh, Fengyu Zhang, Steven E. Tignor, Andrew B. Bocarsly, Antoine Kahn, and Barry P. Rand*, "Electrochemically n-Doped CsPbBr3 Nanocrystal Thin Films", ACS Energy Letters, 2022, 7, 211-216. [link] 

Clayton J. Dahlman, Sungyeon Heo, Youtian Zhang, Lauren C. Reimnitz, Daniel He, Ming Tang, and Delia J. Milliron*, "Dynamics of Lithium Insertion in Electrochromic Titanium Dioxide Nanocrystal Ensembles", Journal of the American Chemical Society, 2021, 143, 8278–8294. [link]

Ross A Kerner+, Sungyeon Heo+, Kwangdong Roh, Kyle MacMillan, Bryon W Larson, Barry P Rand*, “Organic Hole Transport Material Ionization Potential Dictates Diffusion Kinetics of Iodine Species in Halide Perovskite Devices”, ACS Energy Letters, 2021, 6, 501–508. (+Equal contribution) [link]

Sungyeon Heo, Shin Hum Cho, Clayton J Dahlman, Ankit Agrawal, Delia J. Milliron* “Influence of crystalline and shape anisotropy on electrochromic modulation in doped semiconductor nanocrystals”, ACS Energy Letters, 2020, 5, 2662–2670. [link] 

Sungyeon Heo, Clayton J. Dahlman, Corey M. Staller, Taizhi Jiang, Andrei Dolocan, Brian A. Korgel, and Delia J. Milliron*, “Enhanced coloration efficiency of electrochromic tungsten oxide nanorods by site selective occupation of sodium ions", Nano Letters, 2020, 20, 3, 2072–2079. [link] 

Camila A. Saez Cabezas, Kristen Miller, Sungyeon Heo, Andrei Dolocan, Gabriel LeBlanc, and Delia J. Milliron “Direct Electrochemical Deposition of Transparent Metal Oxide Thin Films from Polyoxometalates”, Chemistry of Materials, 2020, 32, 11, 4600–4608. [link]

Gary K. Ong, Camila A. Saez Cabezas, Manuel N. Dominguez, Susanne Linn Skjærvø, Sungyeon Heo, and Delia J. Milliron*, “Electrochromic Niobium Oxide Nanorods”, Chemistry of Materials, 2020, 32, 1, 468-475. [link] 

Shin Hum Cho, Kevin M. Roccapriore, Chandriker Kavir Dass, Sandeep Ghosh, Junho Choi, Jungchul Noh, Lauren C. Reimnitz, Sungyeon Heo, Kihoon Kim, Karen Xie, Brian A. Korgel, Xiaoqin Li, Joshua R. Hendrickson, Jordan A. Hachtel, Delia J. Milliron*, “Spectrally tunable infrared plasmonic F,Sn:In2O3 nanocrystal cubes”, The Journal of Chemical Physics, 2020, 152, 014709. [link]

Sungyeon Heo, Ankit Agrawal, and Delia J. Milliron*, “Wide Dynamic Range in Tunable Electrochromic Bragg Stacks from Doped Semiconductor Nanocrystals”, Advanced Functional Materials, 2019, 29,1904555. [link]

Bharat Tandon, Ankit Agrawal, Sungyeon Heo, and Delia J. Milliron*, “Competition Between Depletion Effects and LSPR Coupling in LSPR Modulation of Doped Metal Oxide Nanocrystals”, Nano Letters, 2019, 19, 2012–2019. [link]

Anthony Maho, Laura Comeron, Catherine Henrist, Luc Henrard, Luiz H. G. Tizei, Mathieu Kociak, Odile Stéphan, Sungyeon Heo, Delia J. Milliron, Bénédicte Vertruyen, and Rudi Clootsa, “Solvothermal processing of plasmonic ITO nanocrystals followed by their ultrasonic spray deposition as near-infrared electrochromic thin films”, Solar Energy Materials & Solar Cells, 2019, 200,110014. [link]

Byung Hyo Kim, Corey M. Staller, Shin Hum Cho, Sungyeon Heo, Carrie E. Garrison, Jongwook Kim, and Delia J. Milliron*, “High Mobility in Nanocrystal-Based Transparent Conducting Oxide Thin Films”, ACS Nano, 2018, 12, 3200-3208. [link]

Sungyeon Heo, Jongwook Kim, Gary K. Ong, and Delia J. Milliron*, “Template-Free Mesoporous Electrochromic Films on Flexible Substrates from Tungsten Oxide Nanorods”, Nano Letters, 2017, 17, 5756-5761. [link]

Robert W. Johns, Michelle A. Blemker, Michael S. Azzaro, Sungyeon Heo, Evan L. Runnerstrom, Delia J. Milliron, and Sean T. Roberts*, “Charge carrier concentration dependence of ultrafast plasmonic relaxation in conducting metal oxide nanocrystals”, Journal of Materials Chemistry C, 2017, 5, 5757-5763. [link]

Yang Wang, Jongwook Kim, Zhengning Gao, Omid Zandi, Sungyeon Heo, Parag Banerjee, and Delia J. Milliron*, “Disentangling Photochromism and Electrochromism by Blocking Hole Transfer at the Electrolyte Interface”, Chemistry of Materials, 2016, 28, 7198-7202. [link]

Sung Yeon Heo, Jong Kwan Koh, Jin Kyu Kim, Chang Soo Lee, and Jong Hak Kim*, “Three-dimensional Conducting Polymer Films for Pt-free Counter Electrodes in Dye-sensitized Solar Cells”, Electrochimica Acta, 2014,137, 34-40. [link] 

Sung Yeon Heo, Jung Tae Park, Rajkumar Patel, Jin Kyu Kim, and Jong Hak Kim*, “One-step Fabrication of Crack-free, Hierarchically-ordered TiO2 Films via Self-assembly of Polystyrene Bead and Preformed TiO2”, Electrochimica Acta, 2014,117, 521-527. [link] 

Sung Yeon Heo+, Jong Kwan Koh+, Gumin Kang, Sung Hoon Ahn, Won Seok Chi, Kyoungsik Kim, and Jong Hak Kim*, “Bifunctional Moth-Eye Nanopatterned Dye-Sensitized Solar Cells: Light Harvesting and Self-Cleaning Effects”, Advanced Energy Materials, 2014, 4, 1300632. (+Equal contribution) (Front Cover) [link]

Sung Yeon Heo, Dong Jun Kim, Harim Jeon, Bumsuk Jung, Yong Soo Kang, and Jong Hak Kim*, “Vertically Aligned Anatase TiO2 Nanotubes on Transparent Conducting Substrates Using Polycarbonate Membranes”, RSC Advances, 2013, 3,13681-13684. [link]

Sang Jin Kim, Dong Jun Kim, Sung Yeon Heo, Hyungju Ahn, Du Yeol Ryu, and Jong Hak Kim*, “Micron-thick, Worm-like, Organized TiO2 Films Prepared Using Polystyrene-b-poly(2-vinyl pyridine) Block Copolymer and Preformed TiO2 for Solid-state Dye-Sensitized Solar Cells”, Electrochimica Acta, 2013, 105, 15-22. [link]

Won Seok Chi, Dong Kyu Roh, Sang Jin Kim, Sung Yeon Heo, and Jong Hak Kim*, “Hybrid Electrolytes Prepared From Ionic Liquid-Grafted Alumina for High-Efficiency Quasi-solid-state Dye-Sensitized Solar Cells”, Nanoscale, 2013,5, 5341-5348. [link] 

Sung Hoon Ahn, Won Seok Chi, Dong Jun Kim, Sung Yeon Heo, and Jong Hak Kim*, “Honeycomb-like Organized TiO2 Photoanodes with Dual Pores for Solid-State Dye-Sensitized Solar Cells”, Advanced Functional Materials, 2013, 23, 3901-3908.  (Inside Front Cover) [link]