2. Publication

52. "Ultrahigh-Yield, Multifunctional, and High-Performance Organic Memory for Seamless In-Sensor Computing Operation", Daeun Kim, Jaehyoung Ko, Namju Kim, Quynh H. Nguyen, Hoyeon Lee, Joohwan Eo, Seongeon Jin, Ji Eon Kwon, Seung-Yeol Jeon, Youngdo Jeong, Dongseok Kwon, Sung Gap Im, Sanghan Lee, Byung Chul Jang, Yongho Joo, Adavanced Fuctional Materials, 2025, e16603.

51. "Layer-Structured Carbon Nanotube-Boron Nitride Nanotube Nanocomposites with Superior Multifunctional Shielding", Su-Yeon Kim, Sihun Park, Kyeongmin Hong, Young-Kyeong Kim, Yong-Seok Choi, Hyeondeok Jeong, Yongho Joo, Se Gyu Jang, Tae-Wook Kim, Sang Seok Lee, ACS Applied Materials & Interfaces, 2025, e202422826.

50. "High-Density Boron Nitride Nanotube Composites via Surfactant-Stabilized Lyotropic Liquid Crystals for Enhanced Space Radiation Shielding", Young-Kyeong Kim, Ik Jae Lim, Hongjin Lim, Yongbi Joo, Jueun Park, Md Monir Hossain, Hyunjin Cho, Nam-Ho You, Seokhoon Ahn, Hunsu Lee, Sang Seok Lee, Yongho Joo, Se Youn Moon, Hee Il Yoo, Calista Lum, Cheol Park, Siyoung Q Choi, Se Gyu Jang , Advanced Functional Materials, 2025, e10716.

49. "Organic Radical-Boosted Ionic Conductivity in Redox Polymer Electrolyte for Advanced Fiber-Shaped Energy Storage Devices", Jeong-Gil Kim, Jaehyoung Ko, Hyung-Kyu Lim, Yerin Jo, Hayoung Yu, Min Woo Kim, Min Ji Kim, Hyeon Su Jeong, Jinwoo Lee, Yongho Joo, Nam Dong Kim, Nano-Micro Letters, 2025, 17, 1, 185.

48. "A Biodegradable Radical Polymer Enables High-Performance, Physically Transient Organic Memory", Jaehyoung Ko, Soeun Kim, Daeun Kim, Taeho Lim, Soyeong Jin, Youngdo Jeong, Yongho Joo, Sangho Cho, Angewandte Chemie International Edition, 2025, e202422826.

47. "Engineering flexible dopamine biosensors: blended EGylated conjugated and radical polymers in organic electrochemical transistors", Dinh Cung Tien Nguyen, Quyen Vu Thi, Quynh H Nguyen, Jaehyoung Ko, Hoyeon Lee, Bryan Boudouris, Seung-Yeol Jeon, Yongho Joo, npj Flexible Electronics, 2025, 9, 1, 35.

46. "Microfluidic Exploitation of Liquid Crystal Properties of Boron Nitride Nanotubes and Enhancing Neutron Shielding with Aligned Structure", Young-Kyeong Kim, Su-Yeon Kim, Yongho Joo, Se Gyu Jang, Siyoung Q Choi, Sang Seok Lee, Small Structures, 2024, 5, 12, 2400281.

45. "Spontaneous Alignment of Boron Nitride Nanotubes into Polycrystalline Film Arrays for Enhanced Piezoelectric Nanogeneration", Daeun Kim, Jaehyoung Ko, Young-Kyeong Kim, Sang Seok Lee, Seokhoon Ahn, Sanghan Lee, Se Gyu Jang, Yongho Joo, Small Structures, 2024, 5, 11, 2400259.

44. "Exceptional electromagnetic interference shielding using single-walled carbon nanotube/conductive polymer composites films with ultrathin, lightweight properties", Thi Thuy Linh Nguyen, Soo Jin Cho, Jaehyoung Ko, Dinh Cung Tien Nguyen, Min Woo Kim, Nam Dong Kim, Dong Su Lee, Yongho Joo, Carbon, 2024, 230, 119567.

43. "A Nonconjugated Radical Polymer Enables Bimodal Memory and In-Sensor Computing Operation", Jaehyoung Ko, Daeun Kim, Quynh H Nguyen, Changhyeon Lee, Namju Kim, Hoyeon Lee, Joohwan Eo, Ji Eon Kwon, Seung-Yeol Jeon, Byung Chul Jang, Sung Gap Im, Yongho Joo, Science Advances, 2024, 10, eadp0778.

42. "Conjugated Radical Polymer-Based Organic Electrochemical Transistors for Biosensing Devices", Dinh Cung Tien Nguyen, Quynh H Nguyen, Jaehyoung Ko, Hoyeon Lee, Daeun Kim, Young Hun Kim, Dae-Yoon Kim, Yongho Joo, Chemistry of Materials, 2024, 36, 16, 7897-7908.

41. "Spin-Active and Magnetic Polymers", Bryan W. Boudouris, Yongho Joo, ACS Macro Letters, 2024, 13, 7, 832-833. (Editorial)

40. "Conductive Glassy Nonconjugated Open-Shell Radical Polymer with Organosulfur Backbone for Macroscopic Conductivity", Quyen Vu Thi, Quynh H Nguyen, Yong-Seok Choi, Seung-Yeol Jeon, Bryan W. Boudouris, Yongho Joo, JACS Au, 2024, 4, 2, 690-696.

39. "Recent Advances in Open-Shell Mixed Conductors-From Molecular Radicals to Polymers", Jaehyoung Ko, Quynh H Nguyen, Quyen Vu Thi, Yongho Joo, Chemical Physics Reviews, 2023, 4, 041310. (Invited Review)

38. "Eco-Friendly Dispersant-Free Purification Method of Boron Nitride Nanotubes through Controlling Surface Tension and Steric Repulsion with Solvents", Minsung Kang, Jungmo Kim, Hongjin Lim, Jaehyoung Ko, Hong-Sik Kim, Yongho Joo, Se Youn Moon, Se Gyu Jang, Eunji Lee, Seokhoon Ahn Nanomaterials, 2023, 13, 18, 2593.

38. "Printable and Recyclable Carbon Nanotube Electronics with Degradable Soybean Oil-based Polycationic Substrate as Gate Dielectrics", Quyen Vu Thi, Jeaho Han, Jimin Park, Sung-Soo Kim, Dae-Young Jeon, Yongho Joo, Carbon, 2023, 212, 118089.

37. "Lyotropic Boron Nitride Nanotube Liquid Crystals: Preparation, Characterization, and Wet-Spinning for Fabrication of Composite Fiber", Hongjin Lim, Young-Kyeong Kim, Hong-Sik Kim, Taegeon Lee, Md Monir Hossain, Hyun-Oh Jeong, Heon Sang Lee, Hyunjin Cho, Yongho Joo, Sang Seok Lee, Sungjune Park, Heesuk Rho, Hyeon Su Jeong, Myung Jong Kim, Seokhoon Ahn, Se Youn Moon, Keun Su Kim, Siyoung Q Choi, Bumjoon J Kim, Se Gyu Jang, ACS Applied Materials & Interfaces, 2023, 15, 20, 24681-24692.

36. "Scalable, Highly Pure, and Diameter-Sorted Boron Nitride Nanotube by Aqueous Polymer Two-Phase Extraction", Jaehyoung Ko, Daeun Kim, Giho Sim, Se Youn Moon, Sang Seok Lee, Se Gyu Jang, Seokhoon Ahn, Sung Gap Im, Yongho Joo, Small Methods (Back Cover), 2023, 7, 2201341.

35. "Stable Water-Floating Transistor with Recyclability", Ilhwan Yu, Vu Thi Quyen, Jaehyoung Ko, Dong Su Lee, Dae-Young Jeon, Yongho Joo, Materials Horizons, 2023, 10, 2, 491-498.

34. "Ion-Incorporative, Degradable Nanocellulose Crystal Substrate for Sustainable Carbon-Based Electronics", Quyen Vu Thi, Jaehyoung Ko, Yerin Jo, Yongho Joo, ACS Applied Materials & Interfaces, 2022, 14, 38, 43538–43546 .

33. "Mapping Out the Nonconjugated Organic Radical Conductors via Chemical or Physical Pathways", Jaehyoung Ko, Ilhwan Yu, Seung-Yeol Jeon, Daewon Sohn, Sung Gap Im, Yongho Joo, JACS Au, 2022, 2 9, 2089-2097.

32. "Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically", Yerin Jo, Ilhwan Yu, Jaehyoung Ko, Ji Eon Kwon, Yongho Joo, Small Science, 2022, 2, 1, 2100081.

Inside Cover

31. "Highly Pure, Length-Sorted Boron Nitride Nanotubes by Gel Column Chromatography", Jaehyoung Ko, Hyun Min Kim, Se Youn Moon, Seokhoon Ahn, Sung Gap Im, Yongho Joo, Chemistry of Materials, 2021, 33, 4723-4732.

30. "Review of Sorted Metallic Single-Walled Carbon Nanotubes", Jaehyoung Ko, Yongho Joo, Advanced Materials Interfaces, 2021, 8, 2002106. (Review Paper)

29."Highly Aligned Array of Heterostructured Polyflourene-Isolated Boron Nitride and Carbon Nanotubes", Ilhwan Yu, Yerin Jo, Jaehyoung Ko, Se Youn Moon, Seokhoon Ahn, Yongho Joo, ACS Applied Materials & Interfaces, 2021, 13, 12417-12424.

28. "Impact of MWCNT Concentration on the Piezo-Impedance Response of Porous MWCNT/PDMS Composites", Seok Ju Lim, Hyun Su Lim, Yongho Joo, Dae-Young Jeon, Sensors and Actuators A: Physical, 2020, 315, 112332.

27. "Effect of Sorted, Homogeneous Electronic Grade Single-Walled Carbon Nanotube on the Electromagnetic Shielding Effectiveness", Ilhwan Yu, Jaehyoung Ko, Tea-Wook Kim, Dong Su Lee, Nam Dong Kim, Sukang Bae, Seoung-Ki Lee, Jaewon Choi, Sang Seok Lee, Yongho Joo, Carbon 2020, 167, 523-529.

26. "Making Nonconjugated Small-Molecule Organic Radicals Conduct", Ilhwan Yu, Yerin Jo, Jaehyoung Ko, Dae-Yoon Kim, Daewon Sohn, and Yongho Joo, Nano Letters, 2020, 20, 7, 5376.

25. "Mixed Ionic and Electronic Conduction in Radical Polymers", Ilhwan Yu, Daeyoung Jeon, Bryan Boudouris, Yongho Joo, Macromolecules, 2020, 53, 4435-4441.

News: Yeonhap News and others (17).

24. "A Bendable, Stretchable Transistor with Aligned Carbon Nanotube Films", Ilhwan Yu, Youngsin Ye, Sangji Moon, Seoung-Ki Lee, Yongho Joo , Advanced Materials Interfaces, 2019, 6, 1900945.

23. "Radical Polymers Alter the Carrier Properties of Semiconducting Carbon Nanotubes", Yongho Joo, Sanjoy Mukherjee, Bryan Boudouris, ACS Applied Polymer Materials, 2019, 1, 204-210.

22. "Photoisomerization Dynamics in a Densely Packed Optically Transformable Azobenzene Monolayer" Kyle M McElhinny, Joonkyu Park, Youngjun Ahn, Peishen Huang, Yongho Joo, Arunee Lakkham, Anastasios Pateras, Haidan Wen, Padma Gopalan, Paul G Evans, Langmuir, 2018, 34, 37, 10828-10836.

21. "Thermoelectric Performance of an Open-Shell Donor–Acceptor Conjugated Polymer Doped with a Radical-Containing Small Molecule", Yongho Joo, Lifeng Huang, Naresh Eedugurala, Alexander E London, Anshuman Kumar, Bryan M Wong, Bryan W Boudouris, Jason D Azoulay, Macromolecules, 2018, 51, 3886–3894.

20. "A Nonconjugated Radical Polymer Glass with High Electrical Conductivity", Yongho Joo, Varad Agarkar, Seung Hyun Sung, Brett M. Savoie, Bryan W. Boudouris, Science, 2018, 359, 1391-1395.

7 News Outlets (C&EN, Nanowerk, Phys.ORG, Gizmodo, C&EN2, Gizmodo2,3)

19. Catherine Kanimozhi, Gerald J. Brady, Matthew J. Shea, Peishen Huang, Yongho Joo, Michael S. Arnold, and Padma Gopalan, “Structurally Analogous Degradable Version of Fluorene-bipyridine Copolymer with Exceptional Selectivity for Large Diameter Semiconducting Carbon Nanotubes”, ACS Applied Materials & Interfaces, 2017, 9, 40734-40742.

18. Yongho Joo, Gerald J. Brady, Catherine Kanimozhi, Jaehyoung Ko, Matthew J. Shea, Michael T. Strand, Michael S. Arnold, and Padma Gopalan, “Polymer Free Electronic Grade Aligned Semiconducting Carbon Nanotube Array”, ACS Applied Materials & Interfaces, 2017, 9, 28859-28867.

17. Xin Yin, Yeqi Shi, Yanbing Wei, Yongho Joo, Padma Gopalan, Izabela Szlufarska, Xudong Wang, “Unit Cell-Level Thickness Control of Single-Crystalline Zinc Oxide Nanosheets Enabled by Electrical Double Layer Confinement”, Langmuir, 2017, 33, 7708-7714.

16. Kyle M. McElhinny, Peishen Huang, Yongho Joo, Catherine Kanimozhi, Kenji Sakurai, Padma Gopalan, Paul G. Evans “Optically reconfigurable organic monolayers on oxide surfaces” Langmuir, 2017, 33, 2157.

15. Randy D Mehlenbacher, Nicholas M Kearns, Thomas J McDonough, Matthew J Shea, Yongho Joo, Padma Gopalan, Michael S Arnold, and Martin T Zanni, “Polarization-controlled 2D-WL spectroscopy of semiconducting carbon nanotube thin films” J. Phys. Chem. C 2016, 210, 17069.

14. Yongho Joo, Myungwoong Kim, Catherine Kanimozhi, Peishen Huang, Bryan M. Wong, Susmit Singha Roy, Michael S. Arnold, and Padma Gopalan, “Effect of Dipolar Molecule Structure on the Mechanism of Graphene-Enhanced Raman Scattering (GERS)" J. Phys. Chem. C 2016, 120, 13815.

13. Wei Wei, Leith Samad, Jonathan Choi, Yongho Joo, Austin Way, Michael S. Arnold, Song Jin, Padma Gopalan “Synthesis of Molybdenum Sulfide Nanowires Using Block Copolymer Template” Chem. Mater. 2016, 28, 4017.

12. David J McGee, John Ferrie, Aljoscha Plachy, Yongho Joo, Jonathan Choi, Catherine Kanimozhi, Padma Gopalan “Photo-induced refractive index and topographical surface gratings in functionalized nanocarbon solid film” Appl. Phys. Lett. 2015, 107, 181102.

11. Yongho Joo, Gerald J Brady, Matthew J Shea, M Belén Oviedo, Catherine Kanimozhi, Samantha K Schmitt, Bryan M Wong, Michael S Arnold, Padma Gopalan “Isolation of Pristine Electronics Grade Semiconducting Carbon Nanotubes by Switching the Rigidity of the Wrapping Polymer Backbone on Demand” ACS nano 2015, 9, 10203-10213.

10. Tracey A Oudenhoven, Yongho Joo, Jennifer E Laaser, Padma Gopalan, Martin T Zanni “Dye aggregation identified by vibrational coupling using 2D IR spectroscopy” J. Chem. Phys. 2015, 142, 212449.

9. Gerald J Brady, Yongho Joo, Meng-Yin Wu, Matthew J Shea, Padma Gopalan, Michael S Arnold “Polyfluorene-sorted, carbon nanotube array field-effect transistors with increased current density and high on/off ratio” ACS nano 2014, 8, 11614-11621. (Press feature on Phys.org)

8. Jennifer E Laaser, Jeffrey R Christianson, Tracey A Oudenhoven, Yongho Joo, Padma Gopalan, JR Schmidt, Martin T Zanni, “Dye self-association identified by intermolecular couplings between vibrational modes as revealed by infrared spectroscopy, and implications for electron injection” J. Phys. Chem. C 2014, 118, 5854-5861.

7. Yongho Joo, Josef W Spalenka, Kyle M McElhinny, Samantha K Schmitt, Paul G Evans, Padma Gopalan, “Structured Layer of Rhenium Dye on SiO2 and TiO2 Surfaces by Langmuir–Blodgett Technique” Langmuir 2014, 30, 6104-6113.

6. Yongho Joo, Gerald J. Brady, Michael S. Arnold, Padma Gopalan, “Dose-controlled, floating evaporative self-assembly and alignment of semiconducting carbon nanotubes from organic solvents." Langmuir 2014, 30, 3460-3466. (Press feature on Phys.org)

5. Gerald J. Brady, Yongho Joo, Susmit Singha Roy, Padma Gopalan, Michael S Arnold, “High performance transistors via aligned polyfluorene-sorted carbon nanotubes”, Appl. Phys. Lett. 2014, 104, 083107.

4. Jennifer E. Laaser, David R Skoff, Jia-Jung Ho, Yongho Joo, Arnaldo L Serrano, Jay D Steinkruger, Padma Gopalan, Samuel H Gellman, Martin T Zanni, “Two-dimensional sum-frequency generation reveals structure and dynamics of a surface-bound peptide”, J. Am. Chem. Soc. 2014, 136, 956-962. (Press feature on C&E news)

3. Hoik Lee, Jungju Ryu, Donghyun Kim, Yongho Joo, Sang Uck Lee, Daewon Sohn, “Preparation of an imogolite/poly (acrylic acid) hybrid gel” J. Colloid. Interface Sci. 2013, 406, 165-171.

2. Yongho Joo, Jae Hyun Sim, Yangjun Jeon, Sang Uck Lee, Daewon Sohn “Opening and blocking the inner-pores of halloysite” Chem. Comm. 2013, 49, 4519-4512.

1. Yongho Joo, Yangjun Jeon, Sang Uck Lee, Jae Hyun Sim, Jungju Ryu, Sungyoung Lee, Hoik Lee, Daewon Sohn, “Aggregation and stabilization of carboxylic acid functionalized halloysite nanotubes (HNT-COOH)”, J. Phys. Chem. C 2012, 116, 18230-18235.

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