Publications

[37] W. J. Hyun, C. M. Thomas, L. E. Chaney, A. C. M. de Moraes, M. C. Hersam, “Screen-printable hexagonal boron nitride ionogel electrolytes for mechanically deformable solid-state lithium-ion batteries,” Nano Lett. 2022, 22, 5372–5378.

[36] C. M. Thomas, W. J. Hyun, H. C. Huang, D. Zeng, M. C. Hersam, “Blade-coatable hexagonal boron nitride ionogel electrolytes for scalable production of lithium metal batteries,” ACS Energy Lett. 2022, 7, 1558–1565.

[35] W. J. Hyun, C. M. Thomas, N. S. Luu, M. C. Hersam, “Layered heterostructure ionogel electrolytes for high-performance solid-state lithium-ion batteries,” Adv. Mater. 2021, 33, 2007864. Featured on a frontispiece of the issue.

[34] W. J. Hyun, L. E. Chaney, J. R. Downing, A. C. M. de Moraes, M. C. Hersam, “Printable hexagonal boron nitride ionogels,” Faraday Discuss. 2021, 227, 92–104.

[33] W. J. Hyun, C. M. Thomas, M. C. Hersam, “Nanocomposite ionogel electrolytes for solid-state rechargeable batteries,” Adv. Energy Mater. 2020, 10, 2002135. Featured on the front cover of the issue.

[32] K.-Y. Park, J.-M. Lim, N. S. Luu, J. R. Downing, S. G. Wallace, L. E. Chaney, H. Yoo, W. J. Hyun, H.-U Kim, M. C. Hersam, “Concurrently achieving volumetric and specific capacity limits of lithium battery cathodes via conformal pickering emulsion graphene coatings,” Adv. Energy Mater. 2020, 10, 2001216.

[31] A. C. M. de Moraes^†, W. J. Hyun^†, (^†Equal contribution) N. S. Luu, J.-M. Lim, K.-Y. Park, M. C. Hersam, “Phase-inversion polymer composite separators based on hexagonal boron nitride nanosheets for high-temperature lithium-ion batteries,” ACS Appl. Mater. Interfaces 2020, 12, 8107–8114.

[30] M. Cao, W. J. Hyun, L. F. Francis, C. D. Frisbie, “Inkjet-printed, self-aligned organic schottky diodes on imprinted plastic substrates,” Flex. Print. Electron. 2020, 5, 015006.

[29] F. Z. Bidoky, B. Tang, R. Ma, K. S. Jochem, W. J. Hyun, D. Song, S. J. Koester, T. P. Lodge, C. D. Frisbie, “Sub-3 V ZnO electrolyte-gated transistors with screen-printed and photo-crosslinked ion gel gate dielectric: new routes to high performance,” Adv. Funct. Mater. 2020, 30, 1902028.

[28] W. J. Hyun, A. C. M. de Moraes, J.-M. Lim, J. R. Downing, K.-Y. Park, M. T. Z. Tan, M. C. Hersam, “High-modulus hexagonal boron nitride nanoplatelet gel electrolytes for solid-state rechargeable lithium-ion batteries,” ACS Nano 2019, 13, 9664–9672.

[27] A. C. M. de Moraes, W. J. Hyun, J.-W. T. Seo, J. R. Downing, J.-M. Lim, M. C. Hersam, “Ion-conductive, viscosity-tunable hexagonal boron nitride nanosheet inks,” Adv. Funct. Mater. 2019, 29, 1902245.

[26] W. J. Hyun, E. B. Secor, M. C. Hersam, “Printable graphene inks stabilized with cellulosic polymers,” MRS Bull. 2018, 43, 730–732.

[25] M. Cao, K. Jochem, W. J. Hyun, S. B. Walker, J. A. Lewis, L. F. Francis, C. D. Frisbie, “Self-aligned printing of resistors and low-pass RC filters on roll-to-roll imprinted plastics with tunable resistance from 10 to 10⁶ Ω,” Flex. Print. Electron. 2018, 3, 045003.

[24] W. J. Hyun, S. Kumar, L. F. Francis, C. D. Frisbie, “Open-channel microfluidic diodes based on two-tier junctions,” Appl. Phys. Lett. 2018, 113, 193701. Featured on the cover of the issue.

[23] F. Z. Bidoky, W. J. Hyun, D. Song, S. B. Walker, J. A. Lewis, L. F. Francis, C. D. Frisbie, Printed, 1 V electrolyte-gated transistors based on poly(3-hexylthiophene) operating at > 10 kHz on plastics,” Appl. Phys. Lett. 2018, 113, 053301.

[22] W. J. Hyun, E. B. Secor, F. Z. Bidoky, S. B. Walker, J. A. Lewis, M. C. Hersam, L. F. Francis, C. D. Frisbie, “Self-aligned capillarity-assisted printing of top-gate thin-film transistors on plastic,” Flex. Print. Electron. 2018, 3, 035004.

[21] D. Song, F. Z. Bidoky, W. J. Hyun, S. B. Walker, J. A. Lewis, C. D. Frisbie, “All-printed, self-aligned carbon nanotube thin-film transistors on imprinted plastic substrates,” ACS Appl. Mater. Interfaces 2018, 10, 15926–15932.

[20] W. J. Hyun, E. B. Secor, C.-H. Kim, M. C. Hersam, L. F. Francis, C. D. Frisbie, “Scalable, self-aligned printing of flexible graphene micro-supercapacitors,” Adv. Energy Mater. 2017, 7, 1700285. Highlighted in Advanced Science News.

[19] S. W. Lee, J. J. Park, B. H. Park, S. C. Mun, Y. T. Park, K. Liao, T. S. Seo, W. J. Hyun, O O. Park, “Enhanced sensitivity of patterned graphene strain sensors used for monitoring subtle human body motions,” ACS Appl. Mater. Interfaces 2017, 9, 11176–11183.

[18] J. J. Park, W. J. Hyun, Y. Y. Kim, K. H. Park, O O. Park, “Silver transparent electrodes using micro-patterns prepared from polystyrene colloidal arrays,” J. Nanosci. Nanotechnol. 2017, 17, 5814–5817.

[17] Y. Y. Kim, W. J. Hyun, K. H. Park, Y. G. Lee, J. Lee, O O. Park, “Enhanced performance of blue polymer light-emitting diodes by incorporation of ag nanoparticles through ligand-exchange process,” J. Mater. Chem. C 2016, 4, 10445–10452.

[16] W. J. Hyun, F. Z. Bidoky, S. B. Walker, J. A. Lewis, L. F. Francis, C. D. Frisbie, “Printed, self-aligned side-gate organic transistors with a sub-5 µm gate-channel distance on imprinted plastic substrates,” Adv. Electron. Mater. 2016, 2, 1600293.

[15] Y. Y. Kim, J. J. Park, S. J. Ye, W. J. Hyun, H.-G. Im, B.-S. Bae, O O. Park, “Novel microlens arrays with embedded Al₂O₃ nanoparticles for enhancing efficiency and stability of flexible polymer light-emitting diodes,” RSC Adv. 2016, 6, 65450–65458.

[14] W. J. Hyun, E. B. Secor, M. C. Hersam, C. D. Frisbie, L. F. Francis, “High-resolution patterning of graphene by screen printing with a silicon stencil for highly flexible printed electronics,” Adv. Mater. 2015, 27, 109–115. Ranked in the top 1% by citations in the Web of Science.

[13] W. J. Hyun, E. B. Secor, G. A. Rojas, M. C. Hersam, L. F. Francis, C. D. Frisbie, “All-printed, foldable organic thin-film transistors on glassine paper,” Adv. Mater. 2015, 27, 7058–7064.

[12] A. Mahajan^†, W. J. Hyun^†, (^†Equal contribution) S. B. Walker, G. A. Rojas, J.-H. Choi, J. A. Lewis, L. F. Francis, C. D. Frisbie, “A self-aligned strategy for printed electronics: exploiting capillary flow on microstructured plastic surfaces,” Adv. Electron. Mater. 2015, 1, 1500137.

[11] A. Mahajan^†, W. J. Hyun^†, (^†Equal contribution) S. B. Walker, J. A. Lewis, L. F. Francis, C. D. Frisbie, “High-resolution, high-aspect ratio conductive wires embedded in plastic substrates,” ACS Appl. Mater. Interfaces 2015, 7, 1841–1847.

[10] W. J. Hyun, S. Lim, B. Y. Ahn, J. A. Lewis, C. D. Frisbie, L. F. Francis, “Screen printing of highly loaded silver inks on plastic substrates using silicon stencils,” ACS Appl. Mater. Interfaces 2015, 7, 12619–12624.

[9] J. J. Park^†, W. J. Hyun^†, (^†Equal contribution) S. C. Mun, Y. T. Park, O O. Park, “Highly stretchable and wearable graphene strain sensors with controllable sensitivity for human motion monitoring,” ACS Appl. Mater. Interfaces 2015, 7, 6317–6324. Ranked in the top 1% by citations in the Web of Science.

[8] Y. Y. Kim, W. J. Hyun, K. H. Park, S. J. Ye, O O. Park, “Synthesis of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)-capped silver nanoparticles and their application to blue polymer light-emitting diodes,” Korean J. Chem. Eng. 2015, 32, 534–539.

[7] W. J. Hyun, H. K. Lee, S. H. Im, O O. Park, “Two-dimensional TiO₂ honeycomb structure for enhanced light extraction from polymer light-emitting diodes,” J. Nanosci. Nanotechnol. 2014, 14, 8411–8415.

[6] J. J. Park, W. J. Hyun, K. H. Park, S. H. Im, O O. Park, “Enhanced light outcoupling efficiency in organic light-emitting diodes using irregular microlenses fabricated with 3D colloidal arrays,” Sci. Adv. Mater. 2014, 6, 2370–2377.

[5] W. J. Hyun, O O. Park, B. D. Chin, “Foldable graphene electronic circuits based on paper substrates,” Adv. Mater. 2013, 25, 4729–4734. Highlighted in Nanowerk Nanotechnology News.

[4] W. J. Hyun, J. J. Park, S. H. Im, O O. Park, B. D. Chin, “White emission from nano-structured top-emitting organic light-emitting diodes based on a blue emitting layer,” J. Phys. D: Appl. Phys. 2013, 46, 095107.

[3] W. J. Hyun, S. H. Im, O O. Park, B. D. Chin, “Corrugated structure through a spin-coating process for enhanced light extraction from organic light-emitting diodes,” Org. Electron. 2012, 13, 579–585.

[2] W. J. Hyun, J. K. Park, O O. Park, B. D. Chin, “Low-driving-voltage and color-stable white organic light-emitting diodes with a cross-patterned multi-emissive layer,” J. Phys. D: Appl. Phys. 2012, 45, 025101.

[1] W. J. Hyun, H. K. Lee, S. S. Oh, O. Hess, C.-G. Choi, S. H. Im, O O. Park, “Two-dimensional TiO₂ inverse opal with a closed top surface structure for enhanced light extraction from polymer light-emitting diodes,” Adv. Mater. 2011, 23, 1846–1850.