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. 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
  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. 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
  8. 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
  • Kyeong Jae Byeon
  • Ju Hyeon Shin
  • Kang Soo Han
  • Gyutae Kim
  • Hyeong Seok Kim
  • Jinseung Kim
  • Hyoungwon Park
  • Jaephil Cho
  • Sookyung Jeong
  • Sung Hoon Hong
  • Kang In Kim
  • Kyung Woo Choi
  • Jin Seung Kim
  • Ki Yeon Yang
  • Seong Hwan Lee
  • Kentaro Tsunozaki

Detail Information

Publications8

  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. 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...
  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. 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. ..
  8. 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...