Publications
Names in bold letters indicate authors from the group, *Corresponding author, § Equal contribution
Recent & Selected publications
Intermolecular lithium bonding between different components upon mixing simultaneously enhances the thermal and electrical properties of an amorphous organic semiconductor material
Seon Bin Song,§ Myungsun Sim,§ Min Seok Ki,§ Taewoo Kim, You Kyoung Chung, Joonsuk Huh, Ohyun Kwon,* and Keewook Paeng*
Journal of Materials Chemistry C, 2024, 12, 5469-5479
Segmental Dynamics of Polystyrene near Polymer-Polymer Interfaces
Jeongin Lee,§ Soohyun Lee,§ Keonchang Lee, Hyeyoung Joung, Seug Kun Choi, Myungwoong Kim, Jaesung Yang,* and Keewook Paeng*
Journal of Chemical Physics, 2024, 160, 124902
Segmental dynamics of an isolated component polymer chain in polymer blends near the glass transition
Hyangseok Lee, Taegeun Kim, Seungyeon Choi, Jaesung Yang,* Myungwoong Kim,* and Keewook Paeng*
Macromolecules, 2023, 56, 8133-8143
Improved Thermal Stability and Operational Lifetime of Blue Fluorescent Organic Light Emitting Diodes by using A Mixed Electron Transporting Layer
Min Seok Ki,§ Myungsun Sim,§ Ohyun Kwon,* Kyuhyun Im, Byoungki Choi,* Byeong Jun Cha, Young Dok Kim, Tae Young Jin, and Keewook Paeng*
ACS Materials Letters, 2022, 4, 1676−1683
Single molecule demonstration of Debye–Stokes–Einstein breakdown in polystyrene near the glass transition temperature
Nicole L. Mandel, Soohyun Lee, Kimyung Kim, Keewook Paeng*, and Laura J. Kaufman*
Nature Communications, 2022, 13, 3580
Direct Observations of Segmental Dynamics at the Polymer–Substrate Interface Enabled by Localizing Fluorescent Probes with Polymer Brushes
Yura Chung,§ Jieun Nam,§ Dongwan Son, Hyangseok Lee, Myungwoon Kim*, and Keewook Paeng*
Macromolecules, 2021, 54, 4546−4556
How Tethered Probes Report the Dynamics of a Polymer near the Glass transition
Jiwon Choi,§ Soohyun Lee,§ Jongwon Choe, Yura Chung, Yae Eun Lee, Jisu Kim, Myungwoon Kim*, and Keewook Paeng*
ACS Macro Letters, 2019, 8, 1191-1186
Full list
52. Intermolecular lithium bonding between different components upon mixing simultaneously enhances the thermal and electrical properties of an amorphous organic semiconductor material
Seon Bin Song,§ Myungsun Sim,§ Min Seok Ki,§ Taewoo Kim, You Kyoung Chung, Joonsuk Huh, Ohyun Kwon,* and Keewook Paeng*
Journal of Materials Chemistry C, 2024, 12, 5469-5479
51. Segmental Dynamics of Polystyrene near Polymer-Polymer Interfaces
Jeongin Lee,§ Soohyun Lee,§ Keonchang Lee, Hyeyoung Joung, Seug Kun Choi, Myungwoong Kim, Jaesung Yang,* and Keewook Paeng*
Journal of Chemical Physics, 2024, 160, 124902
50. Segmental dynamics of an isolated component polymer chain in polymer blends near the glass transition
Hyangseok Lee, Taegeun Kim, Seungyeon Choi, Jaesung Yang,* Myungwoong Kim,* and Keewook Paeng*
Macromolecules, 2023, 56, 8133-8143
49. Photopatternable and Self-Healable Ionogels for Organic Thin-film Transistors
Seungjun Kim,§ Jiyeong Yeo,§ Su Jung Kim, Soeun Park, Kyung Gook Cho, Keewook Paeng,* Keun Hyung Lee,* and Myungwoong Kim*
Organic Electronics, 2023, 122, 106895
48. Aggregates of Conjugated Polymers: Bottom-Up Control of Mesoscopic Morphology and Photophysics
Chanwoo Kim§, Hyeyoung Joung§, Hyung Jun Kim, Keewook Paeng*, Laura J. Kaufman*, and Jaesung Yang*
NPG Asia Materials, 2023, 15, 32
47. CuBTC Metal–organic Framework Decorated with FeBTC Nanoparticles with Enhance Water Stability for Environmental Remediation Applications
Donghun Kim, Ik Ji Kim, Hyuk Taek Kwon, Keewook Paeng* and Hoik Lee*
ACS Omega, 2023, 8, 17, 14900-14906
46. Roll-to-Roll Processing of Hybrid MOF and Nylon Membranes for High Efficiency Removal of Toxic Gases, Heavy Metals, and Dyes
Donghun Kim, Ki Chul Koo, Jong Ho Park, Keewook Paeng* and Woosung Lee*
ACS Applied Engineering Materials, 2023, 1, 4, 1220-1228
45. Polymer Segmental Dynamics Near the Interface of Silica Particles in the Particle/Polymer Composites
Ganghee Park§, Hyangseok Lee§, Jae Hyun Sim, Ahyun Kim, Myungwoong Kim*, and Keewook Paeng*
Journal of Colloid & Interface Science, 2023, 629, 256-264
44. Connection between the time distribution and length scale of dynamic heterogeneity explored by probe reorientations of different sizes
Kimyung Kim, Soohyun Lee, Taegeun Kim, You Kyoung Chung, Joonsuk Huh, Jaesung Yang, Anna Lee, and Keewook Paeng*
Journal of Chemical Physics, 2022, 157, 194902
43. The Utilization of Polymer-Tethered Probes for the Assessment of Segmental Polymer Dynamics Near Glass Transition
Hyangseok Lee,§ Dongwan Son,§ Soohyun Lee, Kyunghyun Eun, Myungwoong Kim,* and Keewook Paeng*
Macromolecules, 2022, 55, 8176−8185
42. Improved Thermal Stability and Operational Lifetime of Blue Fluorescent Organic Light Emitting Diodes by using A Mixed Electron Transporting Layer
Min Seok Ki,§ Myungsun Sim,§ Ohyun Kwon,* Kyuhyun Im, Byoungki Choi,* Byeong Jun Cha, Young Dok Kim, Tae Young Jin, and Keewook Paeng*
ACS Materials Letters, 2022, 4, 1676−1683
41. A composite of carbon nanofiber/copper particle-anchored thiol incorporated silica nanoparticles utilizable for heavy metal adsorption
Hoik Lee, Masaaki Murai, Dongwan Son, Seong-Geun Oh, Myungwoong Kim,* Keewook Paeng,* and Ick Soo Kim,*
Composites Communications, 2022, 34, 101256
40. Impact of Chain Conformation on Structural Heterogeneity in Polymer Network
Hyeyoung Joung, Chanwoo Kim, Jaesang Yu, Soohyun Lee, Keewook Paeng,* and Jaesung Yang*
Nano Letters, 2022, 22, 13, 5487–5494
39. Single molecule demonstration of Debye–Stokes–Einstein breakdown in polystyrene near the glass transition temperature
Nicole L. Mandel, Soohyun Lee, Kimyung Kim, Keewook Paeng*, and Laura J. Kaufman*
Nature Communications, 2022, 13, 3580
38. Direct Observations of Segmental Dynamics at the Polymer–Substrate Interface Enabled by Localizing Fluorescent Probes with Polymer Brushes
Yura Chung,§ Jieun Nam,§ Dongwan Son, Hyangseok Lee, Myungwoon Kim*, and Keewook Paeng*
Macromolecules, 2021, 54, 4546−4556
37. Thiol-Based Chemistry as Versatile Routes for the Effective Functionalization of Cellulose Nanofibers
Sol An, Bokyoung Jeon, Jong Hyuk Bae, Ick Soo Kim, Keewook Paeng*, Myungwoong Kim*, and Hoik Lee*
Carbohydrate Polymers, 2019, 226, 115259
36. How Tethered Probes Report the Dynamics of a Polymer near the Glass transition
Jiwon Choi,§ Soohyun Lee,§ Jongwon Choe, Yura Chung, Yae Eun Lee, Jisu Kim, Myungwoon Kim*, and Keewook Paeng*
ACS Macro Letters, 2019, 8, 1191-1186
35. Monolayer Behaviors of Carborane Poly(Ethylene Glycol) Complexes
Sunhye Kim, Jingying Yang, Eunsuk Jang, Keewook Paeng*, and Daewon Sohn*
Bulletin of the Korean Chemical Society, 2019, 40, 230-235
34. Copolymerization of Simple Methacrylates by Cu(0)-Mediated Reversible Deactivation Radical Polymerization
Jongwon Choe, Woo Jung Lee, Han Gyeol Jang, Youngjoo Song, Jae Hyun Sim, Jaewoo Kim, Keewook Paeng*, Myungwoong Kim*
Polymer Journal, 2019, 51, 449-459
33. Characterization of porous microspheres prepared via γ-ray irradiation
Hyosin Kim, Jeong Rae Kim, Keewook Paeng*, and Daewon Sohn*
Colloid and Polymer Science, 2018, 296(12), 2015-2023
32. Biphasic rate exchange in supercooled o-terphenyl from an ensemble analysis of single-molecule data
Harveen Kaur, Sachin Dev Verma, Keewook Paeng, Laura J. Kaufman*, and Mark A. Berg*
Physical Review E, 2018, 98, 040603(R)
31. Segmental dynamics of polymer by rotational fluorescence correlation microscopy
Soohyun Lee, Jiwon Choi, Jongwon Choe, Myungwoong Kim*, and Keewook Paeng*
Journal of Chemical Physics, 2018, 149, 164910
30. Which probes can report intrinsic dynamic heterogeneity of a glass forming liquid?
Keewook Paeng, and Laura J. Kaufman*
Journal of Chemical Physics, 2018, 149, 164501
29. Reversible assembly of terpyridine incorporated norbornene-based polymer via ring-opening methathesis polymerization and its self-healing property
Jookyeong Lee, Hwi Hyun Moon, Keewook Paeng*, and Changsik Song*
Polymers, 2018, 10 (10), 1173
28. Effect of Film Deposition Parameters on the Glass Transition Behaviors of Poly(methyl methacrylate), Poly(ethyl methacrylate), and Poly(methyl methacrylate-random-ethyl methacrylate) Films
Woo Jung Lee, Jongwon Choe, Sunghyeon Ryu, Jeong Min Lim, Myungwoong Kim*, Keewook Paeng*
Thin Solid Films, 2018, 668, 56-62
27. A review of doping modulation in graphene
Hoik Lee,* Keewook Paeng,* Ick Soo Kim*
Synthetic Metals, 2018, 244, 36-47
26. Epoxy-Containing Copolymers: A Versatile Toolbox for Functional Nanofiber Mats with Desired Chemical Functionalities
Hoik Lee, Sol An, Sukjoo Kim, Bokyoung Jeon, Keewook Paeng, Ick Soo Kim,* Myungwoong Kim*
Advanced Materials Interfaces, 2018, 5, 1800506
25. Stable polymer brushes with effectively varied grafting density synthesized from highly crosslinked random copolymer thin films
Hyungoo Kang, Sol An, Woo Jung Lee, Ga Ryang Kang, Sangwon Kim, Su-Mi Hur,* Keewook Paeng,* and Myungwoong Kim*
RSC Advances, 2018, 8, 24166
24. Single molecule studies reveal temperature independence of lifetime of dynamic heterogeneity in polystyrene
Alyssa S. Manz, Keewook Paeng, and Laura J. Kaufman*
Journal of Chemical Physics, 2018, 148, 204508
23. Confocal rheology probes structure and mechanics of collagen through the sol-gel transition
Khansh-Hoa Tran-Ba, Daniel J. Lee, Jieling Zhu, Keewook Paeng, and Laura J. Kaufman*
Biophysical Journal, 2017, 113, 1882-1892
22. The spatial arrangement of a single nanoparticle in a thin polymer film and its effect on the nanoparticle diffusion
Hesang Im, Younghoon Oh, Hyun Woo Cho, Jeongmin Kim, Keewook Paeng and Bong June Sung*
Soft Matter, 2017, 13, 5897-5904
21. Single Molecule Experiments Reveal the Dynamic Heterogeneity and Exchange Time Scales of Polystyrene near the Glass Transition
Keewook Paeng and Laura J. Kaufman*
Macromolecules, 2016, 49, 2876-2885
20. In Situ Multi-modal Monitoring of Solvent Vapor Swelling in Polymer Thin Films
Dat Tien Hoang, Jaesung Yang, Keewook Paeng, Youngah Kwon, Oh Sang Kweon, and Laura J. Kaufman*
Review of Scientific Instruments, 2016, 87, 015106
19. Conformation-Dependent Photostability among and within Single Conjugated Polymers
Heungman Park; Dat Tien Hoang, Keewook Paeng, Jaesung Yang and Laura J. Kaufman*
Nano Letters, 2015, 15 (11), 7604-7609
18. Ideal probe single molecule experiments reveal the intrinsic dynamic heterogeneity of a supercooled liquid
Keewook Paeng, Heungman Park , Dat Tien Hoang, and Laura J. Kaufman*
Proceedings of the National Academy of Sciences, 2015, 112 (16), 4952-4967
17. Localizing Exciton Recombination Sites in Conformationally Distinct Single Conjugated Polymers by Super-Resolution Fluorescence Imaging
Heungman Park, Dat T. Hoang, Keewook Paeng, and Laura J. Kaufman*
ACS nano, 2015, 9 (3) 3151-3158
16. Extraction of Rotational Correlation Times from Noisy Single Molecule Fluorescence Trajectories
Dat Tien Hoang, Keewook Paeng, Heungman Park, Lindsay M. Leone, and Laura J. Kaufman*
Analytical Chemistry, 2014, 86 (18), 9322–9329
15. Fast crystal growth from organic glasses: comparison of o-terphenyl with its structural analogs
C. Travis Powell, Keewook Paeng, Zhen Chen, Ranko Richert, Lian Yu, and M. D. Ediger*
Journal of Physical Chemistry B, 2014, 118 (28), 8203–8209
14. Single Molecule Rotational Probing of Supercooled Liquids
Keewook Paeng and Laura J. Kaufman*
Chemical Society Reviews, 2014, 43, 977-989
13. Fast crystal growth induces mobility and tension in supercooled o-terphenyl
Keewook Paeng, C. Travis Powell, Lian Yu, and M. D. Ediger*
Journal of Physical Chemistry Letters, 2012, 3, 2562
12. Molecular mobility in supported polymer thin films of polystyrene, poly(methyl methacrylate), and poly(2-vinyl pyridine) probed by dye reorientation
Keewook Paeng, Ranko Richert, and M. D. Ediger*
Soft Matter, 2012, 8, 819
11. Molecular motion in freestanding thin films of poly(methyl methacrylate), poly(4-tert-butyl styrene), poly(α-methyl styrene), and poly(2-vinyl pyridine)
Keewook Paeng and M.D. Ediger*
Macromolecules, 2011, 44, 7034
10. Direct measurement of molecular motion in freestanding polystyrene thin films
Keewook Paeng, Stephen F. Swallen, and M.D. Ediger*
Journal of the American Chemical Society, 2011, 133, 8444
9. Temperature ramping dye reorientation measurement as a probe of molecular dynamics in polymer glasses
Keewook Paeng, Hau-Nan Lee, Stephen F. Swallen, and M. D. Ediger*
Journal of Chemical Physics, 2011, 134, 024901
8. Molecular mobility of PMMA glass during uniaxial tensile creep deformation
Hau-Nan Lee, Keewook Paeng, Stephen F. Swallen, M. D. Ediger*, Rebecca A. Stamm, Grigori A. Medvedev, and James M. Caruthers
Journal of Polymer Science Part B: Polymer Physics, 2009, 47 (17), 1713-1727
7. Direct measurement of molecular mobility in actively deformed polymer glasses
Hau-Nan Lee, Keewook Paeng, Stephen F. Swallen, and M. D. Ediger*
Science, 2009, 323, 231
6. Dye reorientation as a probe of stress-induced mobility in polymer glasses
Hau-Nan Lee, Keewook Paeng, Stephen F. Swallen, and M. D. Ediger*
Journal of Chemical Physics, 2008, 128, 134902
5. Supramolecular ordering of tripod dyes at the air/water interface
Sang-Gil Youm, Keewook Paeng, Young-Wook Choi, Sungjin Park, Daewon Sohn*, Young-Soo Seo, Sushil K. Satija, Bong Gi Kim, Sehoon Kim, and Soo Young Park
Langmuir, 2005, 21(13), 5647-5650
4. Temperature effect of hydrophobically modified poly ethylene oxide at the air-water interface
Keewook Paeng, Jinwoo Choi, Youngmi Park, and Daewon Sohn*
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2003, 220, 1
3. Molecular weight effect on behaviors of polystyrene-block-poly(methyl methacrylate) diblock copolymers at air/water interface
Yongsok Seo*, Keewook Paeng, and Sangwook Park
Macromolecules, 2001, 34, 8735
2. Aggregation processes of hydrophobically modified polyethylene oxide
Keewook Paeng, Bum-Sung Kim, Eung-Ryul Kim, and Daewon Sohn*
Bulletin of the Korean Chemical Society, 2000, 21(6), 623
1. Adsorption of poly(γ-substituted α, L-glutamate) on aluminum surface: ATR and MO approaches
Keewook Paeng, Hyun Joo, Pilsoo Kang, Jaebum Choo, and Daewon Sohn*
Molecular Crystals and Liquid Crystals, 2000, 349, 155