Heon Lee

Summary

Affiliation: Korea University
Country: Korea

Publications

  1. pmc Improvement of photon extraction efficiency of GaN-based LED using micro and nano complex polymer structures
    Joong Yeon Cho
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 Ga, Seongbuk gu, Seoul 136 713, South Korea
    Nanoscale Res Lett 6:578. 2011
  2. pmc Fabrication of flexible UV nanoimprint mold with fluorinated polymer-coated PET film
    Ju Hyeon Shin
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 Ga, Seongbuk gu, Seoul 136 713, South Korea
    Nanoscale Res Lett 6:458. 2011
  3. ncbi request reprint Fabrication of SiNx-based photonic crystals on GaN-based LED devices with patterned sapphire substrate by nanoimprint lithography
    Kyeong Jae Byeon
    Department of Materials Science and Engineering, Korea University, Seoul, South Korea
    Opt Express 20:11423-32. 2012
  4. ncbi request reprint Sub 50 nm nano-patterns with carbon based spin-on organic hardmask
    Ju Hyeon Shin
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 Ga, Seongbuk gu, Seoul 136 713, Korea
    J Nanosci Nanotechnol 12:3364-8. 2012
  5. pmc Hierarchical ZnO Nanowires-loaded Sb-doped SnO2-ZnO Micrograting Pattern via Direct Imprinting-assisted Hydrothermal Growth and Its Selective Detection of Acetone Molecules
    Hak Jong Choi
    Department of Materials Science and Engineering, Korea University, Anam Ro 145, Seongbuk gu, Seoul 136 713, Republic of Korea
    Sci Rep 6:18731. 2016
  6. doi request reprint Improved AlGaInP vertical emitting light-emitting diodes using direct printing
    Joong Yeon Cho
    Department of Materials Science and Engineering, Korea University, Sungbuk Gu, Seoul, South Korea
    Opt Lett 38:1573-5. 2013
  7. doi request reprint Fabrication of 3D nano-structures using reverse imprint lithography
    Kang Soo Han
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 1, Sungbuk Ku, Seoul, Korea
    Nanotechnology 24:045304. 2013
  8. doi request reprint Uniformly embedded silver nanomesh as highly bendable transparent conducting electrode
    Hak Jong Choi
    Department of Materials Science and Engineering, Korea University, Anam Ro 145, Seongbuk gu, Seoul 136 713, Korea
    Nanotechnology 26:055305. 2015
  9. ncbi request reprint 3D Amorphous Silicon on Nanopillar Copper Electrodes as Anodes for High-Rate Lithium-Ion Batteries
    Gyutae Kim
    Department of Materials Science and Engineering, Korea University, Seongbuk gu, Anam Ro 145, Seoul, Republic of Korea
    ACS Nano 8:1907-12. 2014
  10. doi request reprint Forming the graded-refractive-index antireflection layers on light-emitting diodes to enhance the light extraction
    Joong Yeon Cho
    Department of Materials Science and Engineering, Korea University, 5 1 Anam dong, Sungbuk Gu, Seoul 136 713, South Korea
    Opt Lett 36:3203-5. 2011

Collaborators

  • Joong Yeon Cho
  • Ju Hyeon Shin
  • Kyeong Jae Byeon
  • Hak Jong Choi
  • Kang Soo Han
  • Soyoung Choo
  • Gyutae Kim
  • Hyeong Seok Kim
  • Jinseung Kim
  • Hyoungwon Park
  • Il Doo Kim
  • Seon Jin Choi
  • Yang Doo Kim
  • Pil Hoon Jung
  • Sookyung Jeong
  • Jaephil Cho
  • Kyung Woo Choi
  • Kang In Kim
  • Sung Hoon Hong
  • Jin Seung Kim
  • Ki Yeon Yang
  • Kentaro Tsunozaki
  • Seong Hwan Lee

Detail Information

Publications10

  1. pmc Improvement of photon extraction efficiency of GaN-based LED using micro and nano complex polymer structures
    Joong Yeon Cho
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 Ga, Seongbuk gu, Seoul 136 713, South Korea
    Nanoscale Res Lett 6:578. 2011
    ....
  2. pmc Fabrication of flexible UV nanoimprint mold with fluorinated polymer-coated PET film
    Ju Hyeon Shin
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 Ga, Seongbuk gu, Seoul 136 713, South Korea
    Nanoscale Res Lett 6:458. 2011
    ..In this way, the micro- to nano-sized patterns of the original master Si template were replicated on various substrates, including a flat Si substrate and curved acryl substrate, with high fidelity using UV nanoimprint lithography...
  3. ncbi request reprint Fabrication of SiNx-based photonic crystals on GaN-based LED devices with patterned sapphire substrate by nanoimprint lithography
    Kyeong Jae Byeon
    Department of Materials Science and Engineering, Korea University, Seoul, South Korea
    Opt Express 20:11423-32. 2012
    ..Additionally, the patterned LED devices with SiNx-based PhCs showed 19%-increased electroluminescence intensity compared with the unpatterned LED device at 445 nm wavelength when a 20 mA current is driven...
  4. ncbi request reprint Sub 50 nm nano-patterns with carbon based spin-on organic hardmask
    Ju Hyeon Shin
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 Ga, Seongbuk gu, Seoul 136 713, Korea
    J Nanosci Nanotechnol 12:3364-8. 2012
    ..However, such a nano-structure was able to be formed by etching the Si3N4 layer using C-SOH as an etch mask...
  5. pmc Hierarchical ZnO Nanowires-loaded Sb-doped SnO2-ZnO Micrograting Pattern via Direct Imprinting-assisted Hydrothermal Growth and Its Selective Detection of Acetone Molecules
    Hak Jong Choi
    Department of Materials Science and Engineering, Korea University, Anam Ro 145, Seongbuk gu, Seoul 136 713, Republic of Korea
    Sci Rep 6:18731. 2016
    ....
  6. doi request reprint Improved AlGaInP vertical emitting light-emitting diodes using direct printing
    Joong Yeon Cho
    Department of Materials Science and Engineering, Korea University, Sungbuk Gu, Seoul, South Korea
    Opt Lett 38:1573-5. 2013
    ..Compared to the red LED with a wet-etched structure, the patterning enhanced the light output power by 12% without electrical degradation. This enhanced light output power was maintained even after the packaging process...
  7. doi request reprint Fabrication of 3D nano-structures using reverse imprint lithography
    Kang Soo Han
    Department of Materials Science and Engineering, Korea University, Anam Dong 5 1, Sungbuk Ku, Seoul, Korea
    Nanotechnology 24:045304. 2013
    ..RIL was applied to a light-emitting diode (LED) to evaluate the optical effects of a nano-patterned layer. As a result, the light extraction of the patterned LED was increased by about 12% compared to an unpatterned LED...
  8. doi request reprint Uniformly embedded silver nanomesh as highly bendable transparent conducting electrode
    Hak Jong Choi
    Department of Materials Science and Engineering, Korea University, Anam Ro 145, Seongbuk gu, Seoul 136 713, Korea
    Nanotechnology 26:055305. 2015
    ..Then the enhancement of bending stability when the Ag nanomesh is embedded in the PET substrate is confirmed. ..
  9. ncbi request reprint 3D Amorphous Silicon on Nanopillar Copper Electrodes as Anodes for High-Rate Lithium-Ion Batteries
    Gyutae Kim
    Department of Materials Science and Engineering, Korea University, Seongbuk gu, Anam Ro 145, Seoul, Republic of Korea
    ACS Nano 8:1907-12. 2014
    ..5 C, the patterned electrodes with 250 and 500 nm diameter nanopillars showed high capacity retentions of 86% and 84%, respectively. These electrodes retained discharge capacities of 1057 and 780 mAh/g even at 20 C, respectively. ..
  10. doi request reprint Forming the graded-refractive-index antireflection layers on light-emitting diodes to enhance the light extraction
    Joong Yeon Cho
    Department of Materials Science and Engineering, Korea University, 5 1 Anam dong, Sungbuk Gu, Seoul 136 713, South Korea
    Opt Lett 36:3203-5. 2011
    ..1) and air (n=1.0), which minimized the total internal reflection of generated light. And no degradation in the electrical characteristic of the LEDs was observed according to the I-V measurements...