© 2019 by IOEL, KAIST

291 Daehak-ro, Daejeon 34141, Rep. of Korea

B/D E3-2, Rm.6202 (+82-42-350-8083/ 8150 Fax)

Publication                                          

 

 

  • For publication after 2016, please visit Prof. Yoo's GoogleScholar or ORCID public pages.

 

 

 

2016

 ​

  1. Jaeho Lee, Tae-Hee Han, Min-Ho Park, Dae Yool Jung, Jeongmin Seo, Hong-Kyu Seo, Hyunsu Cho, Eunhye Kim, Jin Chung, Sung-Yool Choi, Taek-Soo Kim, Tae-Woo Lee, Seunghyup Yoo, “Synergetic electrode architecture for efficient graphene-based flexible organic light-emitting diodes,” Nature Communications 7, 11791 (2016) [full text]

  2. Hoyeon Kim, Hui‐Seon Kim, Jaewon Ha, Nam‐Gyu Park, Seunghyup Yoo, “Empowering Semi‐Transparent Solar Cells with Thermal‐Mirror Functionality,” Advanced Energy Materials, Available Online (DOI: 10.1002/aenm.201502466) (4. 2016) [selected as a front cover !]

  3. Mincheol Kim, Hyejeong Seong, Seungwon Lee, Hyukyun Kwon, Sung Gap Im, Hanul Moon, Seunghyup Yoo, "Efficient organic photomemory with photography-ready programming speed," Scientific Reports 6, 30536 (7. 2016) [full text]

  4. Hyukyun Kwon, Mincheol Kim, Hyunsu Cho, Hanul Moon, Jongjin Lee, Seunghyup Yoo, "Toward High‐Output Organic Vertical Field Effect Transistors: Key Design Parameters," Adv. Funct. Mater., Available Online (DOI: ) (2016)

  5. Hyejeong Seong, Junhwan Choi, Byung Chul Jang, Mincheol Kim, Seunghyup Yoo, Sung‐Yool Choi, Sung Gap Im, “A Low‐Voltage Organic Complementary Inverter with High Operation Stability and Flexibility Using an Ultrathin iCVD Polymer Dielectric and a Hybrid Encapsulation Layer,” Advanced Electronic Materials, Available Online (DOI: 10.1002/aelm. 201500385) (2016)

  6. Seunghyup Yoo, Alexander Sprafke, Wojciech Lipiński, Jianguo Liu, “Feature issue introduction: light, energy and the environment, 2015,” Optics Express 24 (10), A981-A984 (2016)

  7. Yong Suk Oh, Hyunwoo Lee, Dong Yun Choi, Sung-Uk Lee, Hojin Kim, Seunghyup Yoo, Inkyu Park, Hyung Jin Sung, “High-Performance, Solution-Processed, Embedded Multiscale Metallic Transparent Conductors,” ACS applied materials & interfaces 8 (17), 10937-10945 (2016)

  8. Jae-Jun Kim, Jaeho Lee, Sung-Pyo Yang, Ha Gon Kim, Hee-Seok Kweon, Seunghyup Yoo, Ki-Hun Jeong, “Biologically Inspired Organic Light-Emitting Diodes,” Nano letters 16 (5), 2994-3000 (2016)

  9. Ramakant Sharma, Hyunwoo Lee, Vinay Gupta, Hoyeon Kim, Mahesh Kumar, Chhavi Sharma, Suresh Chand, Seunghyup Yoo, and Dipti Gupta, “Photo-physics of PTB7, PCBM and ICBA based ternary solar cells,” Organic Electronics 34, 111-117 (2016)

  10. Byoung-Kuk Kang, Hyunsu Cho, Jun-Han Han, Jin-Wook Shin, Jinouk Song, Seung Koo Park, Jonghee Lee, Chul Woong Joo, Eunhye Kim, Seunghyup Yoo, Jeong-Ik Lee, Byeong-Kwon Ju, Jaehyun Moon, “Area-selective external light extraction for metal bus equipped large area transparent organic light-emitting diodes,” Optics Express 24 (5), 5356-5365 (3. 2016)

  11. Keunsoo Lee, Jonghee Lee, Eunhye Kim, Jeong-Ik Lee, Doo-Hee Cho, Jong Tae Lim, Chul Woong Joo, Joo Yeon Kim, Seunghyup Yoo, Byeong-Kwon Ju, Jaehyun Moon, “Simultaneously enhanced device efficiency, stabilized chromaticity of organic light emitting diodes with lambertian emission characteristic by random convex lenses,” Nanotechnology 27(7), 075202 (1. 2016)

  12. Yejin Kim, Sunghee Park, Young Hoon Lee, Jaehoon Jung, Seunghyup Yoo, Min Hyung Lee, “Homoleptic Tris-Cyclometalated Iridium Complexes with Substituted o-Carboranes: Green Phosphorescent Emitters for Highly Efficient Solution-Processed Organic Light-Emitting Diodes,” Inorganic chemistry 55 (2), 909-917 (1. 2016)

  13. Jieung Baek, Junseok Lee, Munkyu Joo, Donggeon Han, Houngkyung Kim, Hyejeong Seong, Jinsup Lee, Jihan Kim, Seunghyup Yoo, Seokwoo Jeon, Sung Gap Im, “Tuning the electrode work function via a vapor-phase deposited ultrathin polymer film,” Journal of Materials Chemistry C, 4(4), 831-839 (2016

2015

 

  1. Hanul Moon, Hyejeong Seong, Woo Cheol Shin, Won-Tae Park, Mincheol Kim, Seungwon Lee, Jae Hoon Bong, Yong-Young Noh, Byung Jin Cho*, Seunghyup Yoo* & Sung Gap Im*, “Synthesis of ultrathin polymer insulating layer by initiated chemical vapor deposition for low-power soft electronics,” Nature Materials 14 (6), 628-635 (2015, Mar),  (http://dx.doi.org/10.1038/nmat4237)

  2. Eunhye Kim, Hyunsu Cho, Kyoohyun Kim, Tae‐Wook Koh, Jin Chung, Jonghee Lee, YongKeun Park, Seunghyup Yoo*, "A Facile Route to Efficient, Low‐Cost Flexible Organic Light‐Emitting Diodes: Utilizing the High Refractive Index and Built‐In Scattering Properties of Industrial‐Grade PEN Substrates,” Adv. Mater. 27, 1624-1631 (2015, March)  (http://dx.doi.org/10.1002/adma.201404862)

  3. Donggeon Han, Hyunwoo Lee, Seonju Jeong, Jongjin Lee, Jung-Yong Lee, Seunghyup Yoo, "Stability enhancement of normal-geometry organic solar cells in a highly damp condition: A study on the effect of top electrodes," Org. Electron. 25, 31-36 (2015, October) (http://dx.doi.org/10.1016/j.orgel.2015.06.008)

  4. Soohyun Lee, Tae Eui Kang, Donggeon Han, Hoyeon Kim, Bumjoon J Kim, Jongjin Lee, Seunghyup Yoo*,” Polymer/small-molecule parallel tandem organic solar cells based on MoOx–Ag–MoOx intermediate electrodes,” Sol. Ener. Mater. and Sol. Cells  137, 34-43 (2015, June) (http://dx.doi.org/10.1016/j.solmat.2015.01.012)

  5. Jonghee Lee, Tae-Wook Koh, Hyunsu Cho, Tobias Schwab, Jae-Hyun Lee, Simone Hofmann, Jeong-Ik Lee, Seunghyup Yoo, Karl Leo, Malte C Gather, "Transparent organic light-emitting diodes with different bi-directional emission colors using color-conversion capping layers," J. Luminescence 162, 180–184 (2015, June) (http://dx.doi.org/10.1016/j.jlumin.2015.02.032)

  6. Jonghee Lee, Tae-Wook Koh, Hyunsu Cho, Simone Hofmann, Sebastian Reineke, Jae-Hyun Lee, Jeong-Ik Lee, Seunghyup Yoo, Karl Leo, Malte C Gather, "Color temperature tuning of white organic light-emitting diodes via spatial control of micro-cavity effects based on thin metal strips," Org. Electron. 26, 334-339 (2015, Nov.) (http://dx.doi.org/10.1016/j.orgel.2015.08.002

  7. Jaehyun Moon, Eunhye Kim, Seung Koo Park, Keunsoo Lee, Jin-Wook Shin, Doo-Hee Cho, Jonghee Lee, Chul Woong Joo, Nam Sung Cho, Jun-Han Han, Byoung-Gon Yu, Seunghyup Yoo, Jeong-Ik Lee, "Organic wrinkles for energy efficient organic light emitting diodes," Org. Electron. 26, 273-278 (2015, Nov.) (http://dx.doi.org/10.1016/j.orgel.2015.07.046

  8. Hyunsu Cho, Jin Chung, Jaeho Lee, Eunhye Kim, Seunghyup Yoo*, "Dual optical role of low-index injection layers for efficient polarizer-free high contrast-ratio organic light-emitting diodes," Optics Exp. 23(8), 10259-10265 (2015, Apr.) (http://dx.doi.org/10.1364/OE.23.010259)

  9. Tae Eui Kang, Taesu Kim, Cheng Wang, Seunghyup Yoo, Bumjoon J Kim*, "Poly (benzodithiophene) Homopolymer for High Performance Pol-ymer Solar Cells with Open-Circuit Voltage of Near 1V: A Superior Candidate to Substitute for Poly (3-hexylthiophene) as Wide Bandgap Polymer," Chem. Mater. 27 (7), 2653–2658 (2015)  (http://dx.doi.org/10.1021/acs.chemmater.5b00481)

  10. Dong Yun Choi, Yong Suk Oh, Donggeon Han, Seunghyup Yoo, Hyung Jin Sung, Sang Soo Kim, "Highly Conductive, Bendable, Embedded Ag Nanoparticle Wire Arrays Via Convective Self‐Assembly: Hybridization into Ag Nanowire Transparent Conductors," Adv. Funct. Mater. 25 (25), 3888-3898 (2015, July) (http://dx.doi.org/10.1002/adfm.201500677)

 

2014

  1. Hanul Moon, Hyunsu Cho, Mincheol Kim, Kazuo Takimiya, Seunghyup Yoo, "Towards Colorless Transparent Organic Transistors: Potential of Benzothieno[3,2-b]benzothiophene based Wide-gap Semiconductors", ADVANCED MATERIALS, 26,3105-3110 (2014) [Selected as Inner Backside Cover] ; DOI(http://dx.doi.org/10.1002/adma.201305440)

  2. Sung Ho Song, Min-Ho Jang, Jin Chung, Sung Hawn Jin, Bo Hyun Kim, Seung-Hyun Hur, Seunghyup Yoo*, Yong-Hoon Cho*, and Seokwoo Jeon*, "Highly Efficient Light-Emitting Diode of Graphene Quantum Dots Fabricated from Graphite Intercalation Compounds", Adv. Opt. Mater. 2 (11), 1016-1023 (2014) (selected as a front cover article; selected as “the best of Adv. Opt, Mater. 2014”); DOI(http://dx.doi.org/10.1002/adom.201400184)

  3. Changyeon Lee, Dong Jin Kang, Hyunbum Kang, Taesu Kim, Junwoo Park, Jaeho Lee, Seunghyup Yoo, Bumjoon J Kim*, “Simultaneously Enhancing Light Extraction and Device Stability of Organic Light‐Emitting Diodes using a Corrugated Polymer Nanosphere Templated PEDOT: PSS Layer,” Adv. Energy Mater. 4(8) 1301345 (2014)  (selected as inside front cover article.) DOI(http://dx.doi.org/10.1002/aenm.201301345)

  4. Donggeon Han, Seunghyup Yoo "The stability of normal vs. inverted organic solar cells under highly damp conditions: Comparison with the same interfacial layers", Solar Energy Materials and Solar Cells, Vol.128, pp 41–47, 2014; DOI(http://dx.doi.org/10.1016/j.solmat.2014.04.036)

  5. H.I. Kim, Seunghyup Yoo, J.M. Cho, S.K. Lee, Jae-Ryong Kim, S.J. Moon, J.-C. Lee, W.S. Shin, "Effects of Hole and Electron Transporting Interlayers for Inverted Polymer Solar Cells", JOURNAL OF NANOSCI. AND NANOTECH., 14 (8), 6028-6032 (2014 Aug.); DOI(http://dx.doi.org/10.1166/jnn.2014.8783)

  6. I.H. Jung, H.Y. Woo, B.J. Jung, H Kim, Seunghyup Yoo, W. Lee, Hong Ku Shim, "Synthesis and Characterization of an Anthracene-Based Low Band Gap Polymer for Photovoltaic Devices", J. OF NANOSCIENCE AND NANOTECHNOLOGY, vol.8 no.14, pp.6422-6426, 2014.08 ; DOI(http://dx.doi.org/10.1166/jnn.2014.8788)

  7. M Hong, MH Park, MH Lee, M Eo, Youngkyu Do, D Han, Seunghyup Yoo, "Polynorbornenes with pendant PCBM as an acceptor for OPVs: Ring-opening metathesis versus vinyl-addition polymerization", EUROPEAN POLYMER JOURNAL, vol.51pp.37-44, 2014.02 ; DOI(http://dx.doi.org/10.1016/j.eurpolymj.2013.11.018)

  8. Hoyeon Kim, S Lee, D Han,  Seunghyup Yoo "High-density organic photovoltaic modules: Mask-free fabrication using nozzle jet printing and oblique deposition", SOLAR ENERGY MATERIALS AND SOLAR CELLS, vol.120, pp.561-565, 2014.01 ; DOI(http://dx.doi.org/10.1016/j.solmat.2013.09.039)

  9. Hye Jin Bae, Jin Chung, Hyungjun Kim, Jihyun Park, Kang Mun Lee, Tae-Wook Koh, Yoon Sup Lee, Seunghyup Yoo, Youngkyu Do, Min Hyung Lee, "Deep Red Phosphorescence of Cyclometalated Iridium Complexes by o-Carborane Substitution", INORGANIC CHEMISTRY, vol.53, no.1, pp.128-138, 2014.01; DOI(http://dx.doi.org/10.1021/ic401755m)

  10. Maengsun Eo, Donggeon Han, Myung Hwan Park, Minsaeng Hong, Youngkyu Do*, Seunghyup Yoo*, Min Hyung Lee*, "Polynorbornenes with pendant PCBM as an acceptor for OPVs: Ring-opening metathesis versus vinyl-addition polymerization", European Polymer J. 51, 37-44 (2014); DOI(http://dx.doi.org/10.1016/j.eurpolymj.2013.11.018)

  11. Hyunsu Cho, Chung Jin, Eunhye Kim, Seunghyup Yoo*, “Polarizer-free, high-contrast-ratio organic light-emitting diodes utilizing microcavity structures and neutral-density filters,” J. Information Display, 15(4), 195-199 (2014) [Non-SCI]

 

2013

  1. Seungwon Lee, H Lee, M Kim, H Moon, Y Park, Seung Hwan Ko, Seunghyup Yoo, J Lee, J Seo, YJ Yuk, JeongYoung Park, "Overcoming the "retention vs. voltage'' trade-off in nonvolatile organic memory: Ag nanoparticles covered with dipolar self-assembled monolayers as robust charge storage nodes", ORGANIC ELECTRONICS, vol.14 no.12, pp.3260-3266, 2013.12 ; DOI(http://dx.doi.org/10.1016/j.orgel.2013.09.032)

  2. Tae-Wook Koh, YH Kim, MC Gather, J Lee, H Cho, S Hofmann, JH Lee, JI Lee, K Leo, C Yun, B Lussem, "Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes", OPTICS EXPRESS, vol.21 no.23, pp.28040-28047, 2013.11 ; DOI(http://dx.doi.org/10.1364/OE.21.028040)

  3. Jonghee Lee, S Hofmann, B Luessem, HW Chang, MC Gather, Seunghyup Yoo, CC Wu, K Leo, TW Koh, "Bi-directional organic light-emitting diodes with nanoparticle-enhanced light outcoupling", LASER & PHOTONICS REVIEWS, vol.7 no.6, pp.1079-1087, 2013.11 ; DOI(http://dx.doi.org/10.1002/lpor.201300111)

  4. Jonghee Lee*, Hyunsu Cho, Tae-Wook Koh, Simone Hofmann, Yong Hyun Kim, Changhun Yun, Tobias Schwab, Sebastian Reineke, Björn Lüssem, Jeong-Ik Lee, Seunghyup Yoo*, Karl Leo, Malte C. Gather,  "Straight-forward control of the degree of micro-cavity effects in organic light-emitting diodes based on a thin striped metal layer", ORGANIC ELECTRONICS, vol.14 no.10, pp.2444-2450, 2013.10 ; DOI(http://dx.doi.org/10.1016/j.orgel.2013.06.008)

  5. CS Choi, DY Kim, SM Lee, Kyung Cheol Choi, TW Koh, H Cho, Seunghyup Yoo, MS Lim, "Blur-Free Outcoupling Enhancement in Transparent Organic Light Emitting Diodes: A Nanostructure Extracting Surface Plasmon Modes", ADVANCED OPTICAL MATERIALS, vol.1 no.10, pp.687-691, 2013.10 ; DOI(http://dx.doi.org/10.1002/adom.201300189)

  6. H Moon, D Im, Seunghyup Yoo, "Controlling the Threshold Voltage of Organic Thin-Film Transistors by Transition Metal Oxides", IEEE ELECTRON DEVICE LETTERS, vol.34 no.8, pp.1014-1016, 2013.08 ; DOI(http://dx.doi.org/10.1109/LED.2013.2264140)

  7. C Cho, H Kim, S Jeong, SW Baek, JW Seo, D Han, K Kim, YongKeun Park, Seunghyup Yoo, Jung-Yong Lee, "Random and V-groove texturing for efficient light trapping in organic photovoltaic cells", SOLAR ENERGY MATERIALS AND SOLAR CELLS, vol.115pp.36-41, 2013.08 ; DOI(http://dx.doi.org/10.1016/j.solmat.2013.03.014)

  8. S Lee, H Kim, D Han, S Jeong, Seunghyup Yoo, "Cathodic multilayer transparent electrodes for ITO-free inverted organic solar cells", ORGANIC ELECTRONICS, vol.14 no.6, pp.1477-1482, 2013.06 ; DOI(http://dx.doi.org/10.1016/j.orgel.2013.03.003)

  9. HI Park, DukYoung Jeon, MG Kim, JS Park, BH Kwon, H Kim, Seunghyup Yoo, Sang Ouk Kim, JM Lee, ES Kim, "Exciton Dissociation and Charge-Transport Enhancement in Organic Solar Cells with Quantum-Dot/N-doped CNT Hybrid Nanomaterials", ADVANCED MATERIALS, vol.25 no.14, pp.2011-2017, 2013.04 ; DOI(http://dx.doi.org/10.1002/adma.201204454)

  10. J Yeon, TW Koh, H Cho, Seunghyup Yoo, Jun-Bo Yoon, J Chung, "Actively transparent display with enhanced legibility based on an organic light-emitting diode and a cholesteric liquid crystal blind panel", OPTICS EXPRESS, vol.21 no.8, pp.10358-10366, 2013.04 ; DOI(http://dx.doi.org/10.1364/OE.21.010358)

  11. JH Park, SH Park, Youngkyu Do, M Eo, TW Koh, J Chung, Seunghyup Yoo, MH Lee, "Polynorbornene Copolymer with Side-Chain Iridium(III) Emitters and Carbazole Hosts: A Single Emissive Layer Material for Highly Efficient Electrophosphorescent Devices", MACROMOLECULES, vol.46 no.3, pp.674-682, 2013.02 ; DOI(http://dx.doi.org/10.1021/ma302342p)

 

 

2012

  1. Tae-Wook Koh , Hyunsu Cho, Changhun Yun, Seunghyup Yoo,* “ITO-free down-conversion white organic light-emitting diodes with structured color conversion layers for enhanced optical efficiency and color rendering,” Org. Electron. 13 (12), 3145-3153 (2012).

  2. Changhun Yun, Jungmin Choi, Hyun Wook Kang, Mincheol Kim, Hanul Moon, Hyung Jin Sung, and Seunghyup Yoo,* “Digital-mode organic vapor-jet printing (D-OVJP): advanced jet-on-demand control of organic thin-film deposition,” Adv. Mater. 24 (21), 2857-2861 (2012)

  3. Jungmin Choi, Tae-Wook Koh, Soohyun Lee, and Seunghyup Yoo,* “Enhanced light extraction in organic light-emitting devices: using conductive low-index layers and micropatterned indium tin oxide electrodes with optimal taper angle,” App. Phys. Lett. 100, 233303 (2012)

  4. Jun Ha Park, Tae-Wook Koh, Youngkyu Do,* Min Hyung Lee,* Seunghyup Yoo,* “Soluble polynorbornenes with pendant carbazole derivatives as host materials for highly efficient blue phosphorescent organic light-emitting diodes,” J. Pol. Sci. Part A: Pol. Chem. 50 (12), 2356-2365 (2012, June 15) [selected as an inner cover article]

  5. Sooyeon Lim, Donggeon Han, Hoyeon Kim, Soohyun Lee, and Seunghyup Yoo,* “Cu-based multilayer transparent electrodes: A low-cost alternative to ITO electrodes in organic solar cells,” Sol. Ener. Mater. & Sol. Cells 101 , 170-175

  6. Maengsun Eo, Soohyun Lee, Myung Hwan Park, Min Hyung Lee,* Seunghyup Yoo,* Youngkyu Do, “Vinyl-Type Polynorbornenes with Pendant PCBM: A Novel Acceptor for Organic Solar Cells,” Macromol. Rap. Comm. 33(13) 1119-1125 (2012 July 13)

  7. J. O. Hwang, J. S. Park, D. S. Choi, J. Y. Kim, S. H. Lee, K. E. Lee, Y.-H. Kim, M. H. Song, S. Yoo, and Sang Ouk Kim,* “Workfunction-tunable, N-doped reduced graphene transparent electrodes for high-performance polymer light-emitting diodes,” ACS Nano 6 (1), 159-167 (Jan-24-2012)

  8. Hyunsu Cho and Seunghyup Yoo,* “Polarizer-free, high-contrast inverted top-emitting organic light emitting diodes: effect of the electrode structure," Optics Express 20(2), 1816-1824 (Jan-16-2012)

  9. C. Yun, H. Cho, T.-W. Koh, J.–H. Kim, J. W. Kim, Y. Park, and S. Yoo,* “Doping-free inverted top-emitting organic light-emitting diodes with high power efficiency and near-ideal emission characteristics,” IEEE Transaction on Elec. Dev. 59(1), 159-166 (Jan-2012)

  10. J. Jung, J. J. Lee, B. S. Bae,* S. J. Park, S. Yoo, and K. Jung, “Silica nanoparticle-embedded sol-gel organic/inorganic hybrid nanocomposite for transparent OLED encapsulation," Org. Electron. 13 (1) 53-57 (Jan-2012)

  11. H. W. Kang, C. Yun, S. Yoo, S. H. Ko, and H. J. Sung,* “Effect of carrier gas temperature on pentacene thin film formation by organic vapor-jet printing techniques," Thermochimica Acta 542, 74-79 (2012)

  12. C.J. Kim, S. J. Choi, J. H. Ahn, J. W. Han, H. Kim, S. Yoo, and Y.-K. Choi,* “Photoactive memory by a Si-nanowire field-effect transistor," ACS Nano 6 (2), 1449-1454 (2012)

  13. J. S. Kim, Seungwon Lee, Y. H. Hwang, Y. Kim, S. Yoo, and B. S. Bae,* “Photo-curable sol-gel hybrid film as a dielectric layer by a thiol-ene reaction in air or N2 for organic thin film transistors," Electrochem. and Sol. Sta. Lett. 15(5), G13-G15 (2012)

  14. J. S. Park, J. M. Lee, S. K. Hwang, S. H. Lee, H.-J. Lee, B. R. Lee, H. I. Park, J.-S. Kim, S. Yoo, M. H. Song, and S. O. Kim,* “A ZnO/N-doped carbon nanotube nanocomposite charge transport layer for high performance organic electronics,” J. Mater. Chem. 22, 12695-12700 (2012)

 

2011

  1. Dongmo Im, Hanul Moon, Minchul Shin, Joungho Kim, and Seunghyup Yoo,* “Towards gigahertz operation: ultrafast low turn-on organic diodes and rectifiers based on C60 and tungsten oxide,” Adv. Mater. 23 (5), 644-648 (Feb-1-2011) [DOI: 10.1002/adma.201002246]

  2. Ju Min Lee , Ji Sun Park , Sun Hwa Lee , Hoyeon Kim , Seunghyup Yoo,* and Sang Ouk Kim,* “Selective Electron- or Hole-Transport Enhancement in Bulk-Heterojunction Organic Solar Cells with N- or B-Doped Carbon Nanotubes,” Adv. Mater. 23 (5), 629-633 (Feb-1-2011)

  3. H. Cho, J. Choi, and S. Yoo,* “Highly transparent organic light-emitting diodes with a metallic top electrode: the dual role of a Cs2CO3 layer,” Optics Express 19(2), 1131-1121 (Jan-17-2011)

  4. H. Moon, M. Kim, S. Yoo,* “Bilayer source/drain electrodes self-aligned with fluoropolymer dielectrics for stable high-performance organic TFTs,” IEEE Elec. Dev. Lett. 32 (8) 1137-1139 (Aug. 2011)

  5. C. Yun, M. Kim, S. W. Lee, H. Moon, S. Park, J. B. Koo, J. W. Kim, I.-K. You, and S. Yoo*, “High-performance pentacene thin-film transistors fabricated by printing technology,” IEEE Elec. Dev. Lett. 32 (10) 1454-1456 (Oct. 2011)

  6. S. Park, K. Jung, C. Yun, H. Cho, B.-S. Bae,* and S.Yoo,* “Improved lifetime of highly flexible OLEDs based on multilayered transparent electrodes with enhanced barrier performance,” J. Soc. Inf. Display 19 (9) 597-601 (Sep. 2011)

  7. Yong Son , Junyeob Yeo , Hanul Moon , Tae Woo Lim , Sukjoon Hong , Koo Hyun Nam , Seunghyup Yoo , Costas P. Grigoropoulos , Dong-Yol Yang,* and Seung Hwan Ko,* “Nanoscale electronics: Digital fabrication by direct femtosecond laser processing of metal nanoparticles,” Adv. Mater. 23 (28), 3176-3181 (Jul. 2011)

  8. Kim, C.-J., Choi, S.-J., Kim, S., Han, J.-W., Kim,H., Yoo, S., Choi, Y.-K,* “Photoinduced memory with hybrid integration of anorganic fullerene derivative and an inorganic nanogap-embedded field-effect transistor for low-voltage operation,” Adv. Mater. 23 (29) 3326-3331 (Aug-02-2011)

  9. Lee, H.M. , Moon, H., Kim, H.-S., Kim, Y.N., Choi, S.-M., Yoo, S., Cho, S.O,* “Abrupt heating-induced high-qualitycrystalline rubrene thin films for organic thin-film transistors,” Org. Electron. 12 (8) 1446-1453 (Aug 2011)

  10. D.Gupta,* S. Yoo, C. Lee, and Y. Hong, “Electrical-stress-induced thresholdvoltage instability in solution-processed ZnO thin-film transistors: An experimental and simulation study,” IEEE Trans. Elec. Dev. 58 (7) 1995-2002 (Jul. 2011)

  11. S.-H. Han,* S. Yoo, B. Kippelen, and D. Levi, “Precise determination of optical properties of pentacene thin films grown on various substrates: Gauss-Lorentz model with effective medium approach,” Appl. Phys. B 104(1) 139-144 (Feb-18-2011)

  12. J. H. Park, C. Yun, T.-W. Koh, Y. Do,* S. Yoo,* and M.H. Lee,* “Vinyl-type polynorbornene with 9,9’-(1,1’-biphenyl)-4,4’-diylbis-9H-carbazole side groups as a host material for highly efficient green phosphorescent organic light-emitting diodes,” J. Mater. Chem., 21 (14), 5422-5429 (Apr-14-2011)

  13. S. J. Baik*, K. Kim, K. S. Lim, S. Jung, Y.-C. Park, D.G. Han, S. Lim, S. Yoo, and S. Jeong,* “Low-Temperature Annealing for Highly Conductive Lead Chalcogenide Quantum Dot Solids,” J. Phys. Chem. C 115, 607-612 (Jan-27-2011)

  14. KyungHo Jung, Jun-Young Bae, Soo Jin Park, Seunghyup Yoo and Byeong-Soo Bae*, “High performance organic-inorganic hybrid barrier coating for encapsulation of OLEDs,” J. Mater. Chem., 21 (6), 1977-1983 (Feb-14-2011)

  15. K. Hong, K. Kim, S. Kim, I. Lee, H. Cho, S. Yoo, H. W. Choi, N.-Y. Lee, Y.-H. Tak, J.-L. Lee, “Optical properties of WO3/Ag/WO3 multilayer as transparent electrodes in top-emitting organic light emitting diodes,” J. Phys. Chem. C, 115 (8), 3453-3459 (Mar-3-2011)

  16. Jae-Ryoung Kim, Jung Min Cho, A-Rum Lee, Eun Ah Chae, Jin-Uk Park, Won-Bae Byun, Sang Kyu Lee, Jong-Cheol Lee, Won-Wook So, Seunghyup Yoo, Sang-Jin Moon, Won Suk Shin*, “Improvement of the performance of inverted polymer solar cells with a fluorine-doped tin oxide electrode,” Curr. Appl. Phys. 11 (1 SUPPL) S175-S178 (Jan-2011)

  17. L. Fang, S. J. Baik, S. Lim, S. Yoo, and K. S. Lim,* “Amorphous Si rear Schottky junction solar cell with a LiF/Al back electrode,” IEEE Transaction on Elec. Dev. 58 (9) 3048-3052 (Sep-2011)

  18. J.-H. Kim, H. Moon, S. Yoo, and Y.-K. Choi,* “Nanogap electrode fabrication for a nanoscale device by volume-expanding electrochemical synthesis,” Small 7 (15) 2210-2216 (Aug. 2011)

 

2010

  1. T.-W. Koh, J.-M. Choi, S. Lee, and S. Yoo*, Optical outcoupling enhancement in organic light-emitting diodes: highly conductive polymer as a low-index layer on microstructured ITO electrodes, Adv. Mater. 22, 1849-1853 (2010)

  2. H. Cho, C. Yun, and S. Yoo*, “Multilayer transparent electrode for organic light-emitting diodes: tuning its optical characteristics,” Optics Express, 18 (4), 3404-3414 (2010)

  3. C. Yun, H. Moon, H. W. Kang, M. Kim, H. J. Sung, and S Yoo*, “High Performance Pentacene Thin-Film Transistors Fabricated by Organic Vapor-Jet Printing,” IEEE Electron. Dev. Lett. 31 (11), 1305-1307 (2010)

  4. D. Han, H. Kim, S. Lee, M. Seo, and S. Yoo*, “Realization of efficient semitransparent organic photovoltaic cells with metallic top electrodes: utilizing the tunable absorption asymmetry,” Optics Express, 18 (104), A513-A521 (2010)

  5. S. Han, S. Lim, H. Kim, H. Cho, and S. Yoo*, “Versatile multilayer transparent electrodes for ITO-free and flexible organic solar cells,” IEEE J. Sel. Topics in Quant. Elect. 16 (6) 1656-1664 (2010)

  6. W.C. Shin, H. Moon, S. Yoo, Y. Li , and B. J. Cho*, “Low-Voltage High-Performance Pentacene Thin-Film Transistors with Ultrathin PVP/High-κ HfLaO Hybrid Gate Dielectric,” IEEE Electron. Dev. Lett. 31 (11), 1308-1310 (2010)

  7. L. Fang, S. J. Baik, K. S. Lim*, S. Yoo, M. S. Seo, S. J. Kang, and J. W. Seo, “Tungsten oxide as a buffer layer inserted at the SnO2/ p-a-SiC interface of pin-type amorphous silicon based solar cells,” Appl. Phys. Lett. 96, 193501 (2010)

  8. S.-W. Ryu, C.-J. Kim, M. Seo, C. Yun, S. Yoo, and Yang-Kyu Choi*, “Fullerene-derivative-embedded nanogap field-effect-transistor and its nonvolatile memory application,” Small 6, 1617-1621 (2010)

  9. H. Jung, H. Kim, M-J. Park, B. J. Kim, J.-H. Park, E. Jeong, H. Y. Woo, S. Yoo*, H. -K. Shim*, “Synthesis and characterization of cyclopentadithiophene-based low bandgap coplymers containing electron-deficient benzoselenadiazole derivatives for photovoltaic devices,” J. Pol. Sci. Part. A, 48, 1423-1432 (2010)

  10. J. H. Park, C. Yun, M. H. Park, Y. K. Do,* S. Yoo,* and M. H. Lee, “Synthesis and Hole-Transporting Properties of Vinyl-Type Polynorbornenes with Ethyl Ester Linked Triarylamine Side Groups,” Synth. Met. 160 (16-17), 2000-2007 (2010)

  11. Jae-Ryoung Kim, Jung Min Cho, A-Rum Lee, Eun Ah Chae, Jin-Uk Park, Won-Bae Byun, Sang Kyu Lee, Jong-Cheol Lee, Won-Wook So, Seunghyup Yoo, Sang-Jin Moon, Won Suk Shin*, “Improvement of the performance of inverted polymer solar cells with a fluorine-doped tin  oxide electrode,” Curr. Appl. Phys. (Available online: doi:10.1016/j.cap.2010.11.027) (2010)

 

2009

  1. H. Cho, C. Yun, J.-W. Park, and S. Yoo*, “Highly flexible organic light-emitting diodes based on ZnS/Ag/WO3 multilayer transparent electrodes,” Org. Electron. 10, 1163-1169 (2009)

  2. C. Yun, H. Cho, H. Kang, Y. M. Lee, Y. Park, and S. Yoo*, “Electron injection via pentacene thin films for efficient inverted organic light-emitting diodes,” Appl. Phys. Lett. 95, 053391 (2009)

  3. Jun Ha Park, Changhun Yun, Myung Hwan Park, Youngkyu Do,* Seunghyup Yoo* and Min Hyung Lee*, “Vinyl-Type Polynorbornenes with Triarylamine Side Groups: A New Class of Soluble Hole-Transporting Materials for OLED,” Macromolecules 42, 6840-6843 (2009)

  4. S. Han, W. S. Shin, M. Seo, D. Gupta, S.-J. Moon, and S. Yoo*, “Improving performance of organic solar cells using amorphous tungsten oxides as an interfacial buffer layer on transparent anodes,” Org. Electron. 10, 791-797 (2009 )

  5. Sungho Kim*, Hanul Moon, Dipti Gupta, Seunghyup Yoo, and Yang-Kyu Choi*, “Resistive switching characteristics of sol-gel zinc oxide films for flexible memory applications,” IEEE Trans. Electron Dev. 56(4), 696-699 (2009)

  6. Jae-Woo Park*, Dongyun Lee, Hakyoung Kwon, and Seunghyup Yoo, “Improvement of On-Off-Current Ratio in TiOx Active-Channel TFTs Using N2O Plasma Treatment, IEEE Electron Dev. Lett. 30(4), 362-364 (2009)

  7. Jae-Woo Park*, D. Lee, H. Kwon, S. Yoo, and J. Huh, “Performance improvement of n-type TiOx active-channel TFTs grown by low-temperature plasma-enhanced ALD,” IEEE Electron Dev. Lett. 30(7), 739-741 (2009)

 

 

2008

  1. J.-W. Park* and S. Yoo*, “New n-type TiO2 transparent active channel TFTs fabricated with a solution process,” IEEE Elect. Dev. Lett. Vol. 29 (7), 724-727 (2008)

  2. Dipti Gupta*, Namho Jeon, and Seunghyup Yoo*, “Modeling the electrical characteristics of TIPS-pentacene thin-film transistors: Effect of contact barriers, field-dependent mobility, and traps,” Org. Elec. 9, 1026-1031 (2008)

  3. W. J. Potscavage, S. Yoo, and B. Kippelen*, “Origin of the open-circuit voltage in multilayer heterojunction organic solar cells,” Appl. Phys. Lett. 93, 193308 (2008)

  4. Jae-Woo Park*, Sung-Won Han, Namho Jeon, Jinhyuk Jang, and Seunghyup Yoo, “Improved electrical characteristics of amorphous oxide TFTs based on TiOx channel layer grown by low-temperature MOCVD,” IEEE Elect. Dev. Lett. 29, 1319 (2008)

  5. Dipti Gupta, Manish Anand, Seong-Wan Ryu, Yang-Kyu Choi*, and Seunghyup Yoo*, “Non-volatile memory based on sol-gel ZnO TFTs with Ag nanoparticles embedded in the ZnO/ gate insulator interface,” Appl. Phys. Lett. 93, 224106 (2008)

  6. B. Domercq, J. Yu, B. R. Kaafarani, T. Kondo, S. Yoo, J. N. Haddock, S. Barlow, S. R. Marder, and B.Kippelen*, “ A comparative study of charge mobility measurements in a diamine and in a hexaazatrinaphthylene using different techniques,” Mol. Cryst. Liq. Cryst. 481, 80-93 (2008)

 

2007

  1. Xiao-Hong Zhang, Benoit Domercq, Xudong Wang, Seunghyup Yoo, Takeshi Kondo, Zhong Lin Wang and Bernard Kippelen*, "High-performance pentacene field-effect transistors using Al2O3 gate dielectrics prepared by atomic layer deposition (ALD)," Org. Electron., 8 (6), 718, 2007

  2. Seunghyup Yoo, William J. Potscavage Jr., Benoit Domercq et al. , "Analysis of improved photovoltaic properties of pentacene/C60 organic solar cells: Effects of exciton blocking layer thickness and thermal annealing," Sol.-State Electronics., 51(10), 1367, 2007

  3. W. J. Potscavage, S. Yoo, B. Domercq, and B. Kippelen*, “Encapsulation of pentacene/C60 organic solar cells with Al2O3 deposited by atomic layer deposition,” Appl. Phys. Lett. 90, 253511 (2007)

 

2006

  1. C. Carter, M. Brumbach, C. Donley, R. D. Hreha, S. R. Marder, B. Domercq, S. Yoo, B. Kippelen, and N. R. Armstrong*, "Small molecule chemisorption on indium-tin oxide surfaces: enhancing probe molecule electron-transfer rates and the performance of organic light-emitting diodes," J. Phys. Chem. B 110, 25191 (2006).

  2. S. Yoo, W. J. Potscavage, B. Domercq, J. Kim, J. Holt, and B. Kippelen*, "Integrated organic photovoltaic modules with a scalable voltage output," Appl. Phys. Lett. 89, 233516 (2006).

  3. S. Yoo, W. J. Potscavage, B. Domercq, and B. Kippelen*, “Exciton diffusion in multilayer thin-film pentacene/C60 photovoltaic cells: modeling of spectral response,“ Nonlinear Optics, Quantum Optics [non-SCI] 35, 27 (2006).

 

2005 and earlier

  1. N. Kim, B. Domercq, S. Yoo, A. Christensen, B. Kippelen, and S. Graham*, “Thermal transport properties of thin films of small molecule organic semiconductors,” Appl. Phys. Lett. 87, 241908 (2005).

  2. Z. An, J. Yu, S. C. Jones, S. Barlow, S. Yoo, B. Domercq, P. Prins, L. D. A. Siebbeles, B. Kippelen, and S. R. Marder*, “High Electron Mobility in Room-Temperature Discotic Liquid-Crystalline Perylene Diimides,” Adv. Mater. 17, 2580 (2005).

  3. S. Yoo, B. Domercq, and B. Kippelen*, “Intensity-dependent equivalent circuit parameters of organic solar cells based on pentacene and C60,” J. Appl. Phys. 97, 103706 (2005).

  4. S. Yoo, B. Domercq, and B. Kippelen*, “Efficient thin-film organic solar cells based on pentaene/C60 heterojunctions,” Appl. Phys. Lett. 85, 5427 (2004).

  5. N. R. Armstrong*, C. Carter, C. L. Donley, A. Simmonds,  P. Lee, M. Brumbach, B. Kippelen, B. Domercq, and S. Yoo, “Interface modification of ITO thin films: organic photovoltaic cells,” Thin Sol. Films, 445, 342 (2003).

  6. K. Lee, J.-A. Kim, K. Kim, C.-Y. Won, S. H. Yoo, U. Shim, X. Xu, and W. Jhe*, “Cold atoms in hollow optical systems,” J. K. Phys. Soc. 35, 115 (1999).

  7. S. H. Yoo, C. Won, J.-A. Kim, K. Kim, U. Shim, K. Oh, U.-C. Paek, and W. Jhe*, “Diffracted near-field of hollow optical fibre for a novel atomic funnel,” J. of Opt. B: Quant. and Semiclassical Opt. 1, 364 (1999).

  8. C. Won, S. H. Yoo, K. Oh, U.-C. Paek, and W. Jhe*, “Near-field diffraction by a hollow-core optical fibre,” Opt. Comm. 161, 25 (1999).