Conference papers
2022
92. Dae Hyun Ahn, Jin-Wook Shin, Kukjoo Kim, Chul Woong Joo, Hyunsu Cho, Sukyung Choi, Byoung-Hwa Kwon, Gi Heon Kim, Chun-Won Byun, Nam Sung Cho, Jeong-Ik Lee, Soobin Sim, Jinha Ryu, Hyunkoo Lee, Hyoc Min Youn, Young Jae An, Jin Sun, Jeong Hwan Lee, Hokwon Kim, Minseok Kim, and Chan-mo Kang, “Organic Light-emitting Diode Device Technology for High Color Gamut Microdisplay”, The 22th International Meeting on Information Display (IMID2022), On/Offline Hybrid Conference, BEXCO, Busan, Korea, Aug. 23-26 (2022).
91. Soobin Sim, Jinha Ryu, Dae Hyun Ahn, Hyunsu Cho, Chan-mo Kang, Jin-Wook Shin, Chul Woong Joo, Gi Heon Kim, Chun-Won Byun, Nam Sung Cho, Hyoc Min Youn, Young Jae An, Jin Sun Kim, and Hyunkoo Lee Corresponding author), “Optical Crosstalk Effect Depending on Pixel Structures in High-Resolution Full-Color Organic Light-Emitting Diode Displays”, The 22th International Meeting on Information Display (IMID2022), On/Offline Hybrid Conference, BEXCO, Busan, Korea, Aug. 23-26 (2022).
90. 심수빈, 류진하, 안대현, 조현수, 강찬모, 신진욱, 주철웅, 김기현, 변춘원, 조남성, 윤혁민, 안영재, 김진선, 이현구(교신저자), “유기 발광 다이오드 소자 및 화소 구조에 따른 화소 간 간섭 연구”, Optics and Photonics Congress 2022, ICC Jeju, Korea, Jul. 3-6 (2022). (우수논문상 수상)
89. Dae Hyun Ahn, Jin-Wook Shin, Kukjoo Kim, Chul Woong Joo, Hyunsu Cho, Sukyung Choi, Byoung-Hwa Kwon, Gi Heon Kim, Chun-Won Byun, Nam Sung Cho, Jeong-Ik Lee, Soobin Sim, Jinha Ryu, Hyunkoo Lee, Hyoc Min Youn, Young Jae An, Jin Sun Kim, Jeong Hwan Lee, Hokwon Kim, Minseok Kim, and Chan-mo Kang, “High-Color-Gamut Organic Light-Emitting Diode Microdisplay for Augmented-Reality/Virtual-Reality Devices”, Display Week 2022 International Symposium, Seminar and Exhibition, San Jose, USA, May 10-12 (2022).
88. Hyunkoo Lee, “Improvement of Efficiency in Inverted Green and Blue Phosphorescent Organic Light-Emitting Diodes using Red Dye-doped Hole Transport Layers”, 2022 MRS (Materials Research Society) Spring Meeting & Exhibit, Hawaii convention center, Honolulu, USA, May 8-13 (2022) (May 9).
87. Taesoo Lee, Byong Jae Kim, Hyunkoo Lee, Donghyo Hahm, Wan Ki Bae, Jaehoon Lim, Jeonghun Kwak, “Highly Bright Top-Emitting Quantum Dot Light-Emitting Diodes Fabricated on Si Substrate”, 2022 MRS (Materials Research Society) Spring Meeting & Exhibit, Hawaii convention center, Honolulu, USA, May 8-13 (2022) (May 9).
86. Hyunkoo Lee (Corresponding author), Seong Ji Lee, Chan-mo Kang, Jin-Wook Shin, Dae Hyun Ahn, Chul Woong Joo, Hyunsu Cho, Nam Sung Cho, Hyoc Min Youn, Young Jae An, Jin Sun Kim, Jonghee Lee, “Single-stack white organic light-emitting diodes on silicon with high luminance for full-color microdisplays”, 한국광학회 제33회 정기총회 및 2022 동계학술발표회, 대전컨벤션센터, Daejeon, Korea, Feb. 16-18 (2022). (Invited)
2021
85. Seong Ji Lee, Jin-Wook Shin, Dae Hyun Ahn, Chul Woong Joo, Hyunsu Cho, Nam Sung Cho, Jonghee Lee, Hyoc Min Youn, Young Jae An, Hyunkoo Lee (Corresponding author), and Chan-mo Kang (Corresponding author), “High Luminance Top-emitting White Organic Light-emitting Diodes for Microdisplay Applications”, The 21th International Meeting on Information Display (IMID2021), Hybrid Conference, COEX, Seoul, Korea, Aug. 25-27 (2021). (Best Poster Award)
84. Seong Ji Lee, Jin-Wook Shin, Dae Hyun Ahn, Chul Woong Joo, Hyunsu Cho, Nam Sung Cho, Jonghee Lee, Hyunkoo Lee, Chan-mo Kang, “On Chip Color Filter Top Emitting White Organic Light Emitting Diodes for Full-color Displays”, Optics and Photonics Congress 2021, Jeju, Korea, Jul. 4-7 (2021). (우수 논문상 수상)
83. Chan-mo Kang, Jin-Wook Shin, Sukyung Choi, Byoung-Hwa Kwon, Hyunsu Cho, Nam Sung Cho, Jeong-Ik Lee, SeungJoon Kwon, Hyunkoo Lee, Soon-gi ark, Youngjoon Kim, Jeonghun Ha, Jaehyeok Kim, Jeong Hwan Lee, Hokwon Kim, Ara Cho, Sang Hyun Park, Minseok Kim, Sang Tae Kim, Jong Soo Lee, Seung No Lee, Yu Bin Im, Jung-Sik Koo, Jiyong Park, and Chun-Won Byun, “High Aspect Ratio OLED Microdisplay with Pin Mirror Lens for Small Form Factor AR Devices”, Display Week 2021 International Symposium, Seminar and Exhibition, Virtual Conference, USA, May. 3-8 (2021).
2020
82. Donggu Lee, Jaehoon Lim, Myeongjin Park, Chan-Mo Kang, Hyunkoo Lee (Corresponding author), “Device characteristics of inverted red colloidal quantum-dot light-emitting diodes depending on hole transport layers”, The 6th International Conference on Electronic Materials and Nanotechnology for Green Environment, Hybrid Conference, Jeju, Korea, Nov. 1-4 (2020).
81. Hyunkoo Lee, “Color-tunable organic light-emitting diodes for solid-state lightings and high-resolution full-color active-matrix displays”, 2020 International Conference on Display Technology (ICDT2020), Virtual Conference, Wuhan, Chian Oct. 11-14 (Oct. 13) (2020). (Invited)
80. Chan-mo Kang, Jin-Wook Shin, Sukyung Choi, Byoung-Hwa Kwon, Hyunsu Cho, Nam Sung Cho, Jeong-Ik Lee, Hyunkoo Lee (Corresponding author), Jeong Hwan Lee, Hokwon Kim, Ara Cho, Jeong Cho, Sang Hyun Park, Minseok Kim, Soon-gi Park, Youngjoon Kim, Jeonghun Ha, Jaehyeok Kim, Sang Tae Kim, Jong Soo Lee, Seung No Lee, Yu Bin Im, and Chun-Won Byun, “The High Aspect Ratio Microdisplay and The Thin Optical Component for Glass-like AR Devices”, The 20th International Meeting on Information Display (IMID2020), Virtual Conference, Korea, Aug. 25-28 (2020).
79. Hyunkoo Lee, Hyunsu Cho, Chun-Won Byun, Chan-mo Kang, Jin-Wook Shin, Sukyung Choi, Byoung-Hwa Kwon, Nam Sung Cho, Ara Cho, Hokwon Kim, Jeong Cho, Snag Hyun Park, Minseok Kim, Soon-gi Park, Youngjoon Kim, Jeonghun Ha, Jaehyeok Kim, “Organic Light-emitting Diode Microdisplay with a 32:9 Aspect Ratio for Wide Field of View”, Display Week 2020 International Symposium, Seminar and Exhibition, Virtual Conference, USA, Aug. 3-7 (2020).
78. Hyunsu Cho, Chan-mo Kang, Byoung-Hwa Kwon, Sukyung Choi, Chul Woong joo, Hyunkoo Lee, “Horizontally oriented dipole ratio of organic light-emitting material in top-emitting OLEDs for achieving the same efficiency and color gamut as QD electroluminescent display”, SPIE Photonics West 2020, San Francisco, USA, MOSCONE CENTER, LEVEL 3 WEST (Feb. 5)WED 6:00 PM TO 8:00 PM (Feb. 1 ~ Feb. 6) (2020).
2019
77. 이현구, 조현수, 변춘원, 강찬모, 신진욱, 최수경, 조남성, 이정익, 김호권, 이정환, 김민석, “가상/증강현실용 OLEDoS 기술 및 동향”, 2019 Photonics Conference, Phoenix Pyeongchang, Korea, Dec. 6(Dec. 4 ~ Dec. 6) (2019). (Invited)
76.. Doo-Hee Cho, Young-Sam Park, Hyunsu Cho, Kang Me Lee, Hye Jin Yun, Seung-Youl Kang, Seong-Deok Ahn, Hyunkoo Lee, ”Light Extraction and Viewing Angle Characteristics of Nano-Structure Embedded Top-Emitting OLEDs Fabricated by Vacuum Deposition Processes", The 18th International Symposium on Microelectronics and Packaging – The 26th International Display Workshops (IDW '19), Sapporo, Japan, Nov. 28(Nov.27-29) (2019).
75. Hyunkoo Lee, ”Recent microdisplay technology status for AR/VR applications", The 18th International Symposium on Microelectronics and Packaging – The 21st Electronic Materials and Packaging (EMAP) Conference (ISMP-EMAP 2019), Hotel Aqua Palace, Busan, Korea, Nov. 14(Nov.13-15) (2019). (Invited)
74. Chul Woong Joo, Byoung-Hwa Kwon, Hyunkoo Lee, Seung-Youl Kang, Seong-Deok Ahn, Jaehyun Moon, “Wrinkle structure as internal light extraction for organic light-emitting diodes”, The 5th International Conference on Advanced Electromaterials, Ramada Plaza Jeju Hotel, Jeju, Korea, Nov. 7(Nov.5-8) (2019).
73. Byoung-Hwa Kwon, Hyunsu Cho, Sukyung Choi, Chun-Won Byun, Chul Woong Joo, Hyunkoo Lee, O Eun Kwon, Chan-mo Kang, Chan Woo Park, Jong-Heon Yang, Jin-Wook Shin, Sooji Nam, Sujung Kim, Kukjoo Kim, Jeong-Ik Lee, ”Development of Inorganic/Organic Thin Film Encapsulation by Using Atomic Layer Deposition and Ink-jet Printing Process", The 5th International Conference on Advanced Electromaterials, Ramada Plaza Jeju Hotel, Jeju, Korea, Nov. 7(Nov.5-8) (2019).
72. Sukyung Choi, Chan-Mo Kang, Chun-Won Byun, Hyunsu Cho, Byuong-Hwa Kwon, Jun-Han Han, Jong-Heon Yang, Jin-Wook Shin, Chi-Sun Hwang, Eungjun Kim, Seunghyup Yoo, Nam Sung Cho, Hyunkoo Lee(corresponding),” Vertically-stacked Red, Green, and Blue Organic Light-emitting Diodes with Photolithography-processed Intermediate Electrodes for High-resolution Display Applications", The 5th International Conference on Advanced Electromaterials, Ramada Plaza Jeju Hotel, Jeju, Korea, Nov. 7(Nov.5-8) (2019).
71. Doo-Hee Cho, Young-Sam Park, Kang Me Lee, and Hyunkoo Lee, “Nano-Structure Fabricated by Thermal Evaporation for OLED Light Extraction”, The 19th International Meeting on Information Display (IMID2019), HICO Gyeongju, Korea, Aug. 27-30 (2019).
70. Jaehyun Moon, Hyunsu Cho, Jinouk Song, Byoung-Hwa Kwon, Sukyung Choi, Hyunkoo Lee, Chul Woong Joo, Jin-Wook Shin, Seunghyup Yoo, Seong-Deok Ahn, and Seung-Youl Kang, “White OLEDs with Indistinguishable Angular Spectral Dependency”, The 19th International Meeting on Information Display (IMID2019), HICO Gyeongju, Korea, Aug. 27-30 (2019).
69. O Eun Kwon, Jin-Wook Shin, Himchan Oh, Chan-Mo Kang, Hyunsu Cho, Byoung-Hwa Kwon, Chun-Won Byun, Jong-Heon Yang, Kang Me Lee, Jun-Han Han, Nam Sung Cho, Jong Hyuk Yoon, Seung Jin Chae, Jin Sung Park, Hyunkoo Lee, Chi-Sun Hwang, Jaehyun Moon, and Jeong-Ik Lee, “A Prototype of Active Matrix Flexible Graphene OLED”, The 19th International Meeting on Information Display (IMID2019), HICO Gyeongju, Korea, Aug. 27-30 (2019). KIDS Awards (Silver Award)
68. Hyunsu Cho, Chun-Won Byun, Chan-Mo Kang, Jin-Wook Shin, Byoung-Hwa Kwon, Sukyung Choi, Nam Sung Cho, Jeong-Ik Lee, Hokwon Kim, Jeong Hwan Lee, Minseok Kim, and Hyunkoo Lee (corresponding), “White Organic Light-Emitting Diode(OLED) Microdisplay with Tandem Structure”, The 19th International Meeting on Information Display (IMID2019), HICO Gyeongju, Korea, Aug. 27-30 (2019). KIDS Awards (Gold Award)
67. Young-Sam Park, Kyung-Hoon Han, Doo-Hee Cho, Nam Sung Cho, Yoonjay Han, Jonghee Lee, Hyunkoo Lee, Byounggon Yu, Jeong-Ik Lee, Jang-Joo Kim, “A Highly Mass-producible Nano-lens Array Technology for Optically Efficient Full-color Organic Light Emitting Diode Display Applications”, Display Week 2019 International Symposium, Seminar and Exhibition, San Jose, USA, May 12-17 (2019).
66. Hyunkoo Lee, “OLED Technologies for AR/VR”, 2019 OLED KOREA CONFERENCE, 서울, 대한민국, Mar. 6-7 (2019). (Invited)
65. 이현구, 조현수, 변춘원, 강찬모, 신진욱, 나복순, 이어랑, 권병화, 조남성, “OLEDoS 마이크로 디스플레이의 현황과 발전 전망”, 2019한국광학회동계학술대회, 강원도, 대한민국, Feb. 20-22 (2019). (초청발표)
2018
64. Sukyung Choi, Jaehyun Moon, Hyunso Cho, Byuong-Hwa Kwon, Namsung Cho, Sungjee Kim, and Hyunkoo Lee, “Surface Functionalization of Red, Green, and Blue Quantum Dots for Efficient Light-Emitting Diodes”, E-MRS Fall meeting 2019, Warsaw, Poland, Sep. 17-19 (2018).
63. Hyunkoo Lee, Sukyung Choi, Byoung-Hwa Kwon, Chun-Won Byun, Hyunsu Cho, Jun-Han Han, Jong-Heon Yang, Jin-Wook Shin, Chi-Sun Hwang, Eungjun Kim, Seunghyup Yoo, Nam Sung Cho, “Color-tunable organic light-emitting diodes with a vertically stacked structure for high-resolution displays”, The 18th International Meeting on Information Display (IMID2018), Busan, Korea, Aug. 28-31 (2018).
62. Sukyung Choi, Nam Sung Cho, Sungjee Kim, and Hyunkoo Lee, “Surface Engineering of Quantum Dots for Optoelectronic Devices”, International Conference on Science and Technology of Synthetic Metals (ICSM) 2018, Busan, Korea, Jul. 1-6 (2018).
62. Eun Kwon, Doo-Hee Cho, Young-Sam Park, Byoung Gon Yu, Jonghee Lee, Jaehyun Moon, Hyunkoo Lee and Nam Sung Cho, “Fabrication of gas barrier equipped flexible integrated substrate for OLED lighting panels”, LOPEC 2018, Messe Munchen, Germany, Mar. 13-15 (2018).
2017
61. Himchan Oh, Jong-Heon Yang, Gi Heon Kim, Hyunkoo Lee, Byoung-Hwa Kwon, Chunwon Byun, Chi-Sun Hwang, Kyoung Ik Cho, and Jeong-Ik Lee, “Light Adaptable Space Adaptable Display”, The 17th International Meeting on Information Display (IMID2017), Daegu, Korea, Aug. 28-31 (2017). KIDS Awards (Gold Award)
60. H. Lee, M.-J. Maeng, J.-A. Hong, R. Najnin, J. Moon, B.-G. Yu, Y. Park, N. S. Cho, “Device characteristics of inverted organic light-emitting diodes depending on electron injection and transport materials”, 10th International Symposium on Flexible Organic Electronics (ISFOE17), Thessaloniki, Greece, Jul. 3-6 (2017).
59. Seong-Deok Ahn, Seung-Youl Kang, Sung-Haeng Cho, Jong-Heon Yang, Hyunkoo Lee, Bock-Soon Na, Jae-Bon Koo, Chan-Woo Park, Nam-Sung Cho, Chi-Sun Hwang, Jeong-Ik Lee, Chun-Won Byun, Byoung-Hwa Kwon, “Ultrathin Stretchable Oxide Thin Film Transistor and Active Matrix Organic Light-Emitting Diode Displays”, 2017 Display Week International Symposium, Los Angeles, USA, May. 21-26 (2017).
58. Doo-Hee Cho, Young-Sam Park, Byoung Gon Yu, Jonghee Lee, Jaehyun Moon, Hyunsu Cho, Hyunkoo Lee, O Eun Kwon, Nam-Sung Cho, “Screen Printing, Copper Plating, and Debonding Process for Flexible OLED Substrates”, LOPEC 2017, Messe München, Germany, Mar. 28-30 (2017).
2016
57. Sunghee Park, Jong Tae Lim, Kyongnam Kim, Hyunkoo Lee, Seong Chu Lim, Byung-Hwa Kwon, Nam Sung Cho, Geun Young Yeom, Seunghyup Yoo, Jeong-Ik Lee, “Novel Laminated Top Electrode of OLEDs based on Chlorine-doped Multi-layered Graphene”, The 4th International Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2016), Jeju, Korea, Nov. 6-9 (2016). General Poster Award
56. Hyunkoo Lee, Jong Tae Lim, Sunghee Park, Won-Yong Jin, Byoung-Hwa Kwon, Chun-Won Byun, Nam Sung Cho, Jae-Wook Kang, Seunghyup Yoo, Jeong-Ik Lee, “Transparent Organic Light-Emitting Diodes using Laminated Non-Metal Top Electrodes”, The 20th International Symposium on Advanced Display Materials and Devices (ADMD 2016), Shanghai, China, Oct. 19-21 (2016). (Invited)
55. Jeong-Ik Lee, Hyunkoo Lee, Jong Tae Lim, Sunghee Park, Won-Yong Jin, Byoung-Hwa Kwon, Chun-Won Byun, Nam Sung Cho, Jae-Wook Kang, Seunghyup Yoo, “Advanced Transparent Conductive Top Electrode for Transparent and Topemitting Organic Light-Emitting Diodes”, ECS PRiME 2016, Honolulu, USA, Oct. 2-7 (2016). (Invited)
54. Jeong-Ik Lee, Byoung-Hwa Kwon, Hyunkoo Lee, Jong Tae Lim, Nam Sung Cho, Sunghee Park, Won-Yong Jin, Hyunsu Cho, Jun-Han Han, Byoung-Gon Yu, Seongchu Lim, Jae-Wook Kang, Seunghyup Yoo, SPIE Optics+Photonics 2016, San Diego, USA, Aug. 28-Sep. 1 (2016). (Invited)
53. Jeong-Ik Lee, Hyunkoo Lee, Jong Tae Lim, Sunghee Park, Won-Yong Jin, Byoung-Hwa Kwon, Nam Sung Cho, Jae-Wook Kang, Seunghyup Yoo, “Transparent and Low-Resistance Top Electrode for Organic Light-Emitting Diodes”, The 16th International Meeting on Information Display (IMID 2016), Jeju, Korea, Aug. 23-26 (2016). (Invited)
52. Sunghee Park, Jong Tae Lim, Hyunkoo Lee, Won-Yong Jin, Byoung-Hwa Kwon, Nam Sung Cho, Jae-Wook Kang, Seunghyup Yoo, and Jeong-Ik Lee, “Novel Laminated OLEDs Using a Non-Metal Transparent Top Electrode with an Embedded Metal Mesh”, 2016 Display Week International Symposium, San Francisco, USA, May. 24-27 (2016).
51. 이현구, 임종태, 조현수, 임성주, 권병화, 조남성, 한준한, 박성희, 유병곤, 유승협, 이정익, “비금속 상부전극을 이용한 유기발광다이오드 기술”, 제2회 LED·반도체조명학회/한국광전자학회 학술대회, 광주, 대한민국, Jan. 26-27 (2016). (Invited)
2015
50. Hyunkoo Lee, Jong Tae Lim, Hyunsu Cho, Seong Chu Lim, Byung-Hwa Kwon, Nam Sung Cho, Jun-Han Han, Sung Hee Park, Byoung-Gon Yu, Seunghyup Yoo, and Jeong-Ik Lee, “Multi-layered graphene top electrodes for organic light-emitting diodes”, The 7th International Workshop on Flexible & Printable Electronics 2015 (IWFPE2015), Jeonju, Korea, Nov. 4-6 (2015). (Invited)
49. Bong Jun Kim, Hong-Keun Park, Byoung-Hwa Kwon, Hyunkoo Lee, Min Seok Lee, Do Heung Kim, Jeong Ik Lee, and Sung Gap Im, “Fabrication of Thin Film Encapsulation via iCVD and ALD & its Application on OLED”, The 7th International Workshop on Flexible & Printable Electronics 2015 (IWFPE2015), Jeonju, Korea, Nov. 4-6 (2015).
48. Sunghee Park, Jong Tae Lim, Kyongnam Kim, Hyunkoo Lee, Seong Chu Lim, Byoung-Hwa Kwon, Nam Sung Cho, Geun Young Yeom, Seunghyup Yoo, and Jeong-Ik Lee, “Chlorine-doped multilayered graphene for a top electrode of OLEDs” The 7th International Workshop on Flexible & Printable Electronics 2015 (IWFPE2015), Jeonju, Korea, Nov. 4-6 (2015).
47. B.-H. Kwon, H. Lee, J. T. Lim, S. M. Cho, J.-H. Han, J.-H. Yang, S. H. Cheon, T.-Y. Kim, N. S. Cho, B.-G. Yu, C.-S. Hwang, S. C. Lim, and J.-I. Lee, “Colored OLED with a Multilayered Graphene Electrode for Light-Adaptable Displays”, Eurodisplay 2015, Ghent, Belgium, Sep. 21-23 (2015).
46. Jonghee Lee, Woo Jin Sung, Chul Woong Joo, Nam Sung Cho, Hyunkoo Lee, and Jeong-Ik Lee, “Semi-transparent Colored Organic Light-Emitting Diodes”, 2015 KJF International Conference on Organic Materials for Electronics and Photonics (KJF-ICOMEP 2015), Jeju, Korea, Sep. 6-9 (2015).
45. Jong-Heon Yang, Sang Chul Lim, Chun-Won Byun, Hyunkoo Lee, Byoung-Hwa Kwon, Jong Tae Lim, Seong M. Cho, Seunghyup Yoo, Sung Haeng Cho, and Chi-Sun Hwang, “Thin-Film Laser Lift-Off for Dual-Mode Display Application”, The 15th International Meeting on Information Display (IMID2015), Daegu, Korea, Aug. 18-21 (2015).
44. Jeonghun Kwak, Hyunkoo Lee, and Changhee Lee, “Common Red Layer in Full-Color Phosphorescent Organic Light-Emitting Diodes for Simple Fabrication of RGB Subpixels”, The 15th International Meeting on Information Display (IMID2015), Daegu, Korea, Aug. 18-21 (2015).
43. Hyunkoo Lee, Jong Tae Lim, Hyunsu Cho, Byoung-Hwa Kwon, Nam Sung Cho, Byoung-Gon Yu, Seong Chu Lim, and Jeong-Ik Lee, “Inverted Top-Emitting Organic Light-Emitting Diodes with a Multilayered Graphene Top Electrode”, The 15th International Meeting on Information Display (IMID2015), Daegu, Korea, Aug. 18-21 (2015). KIDS Awards (Gold Award)
42. Chun-Won Byun, Jong-Heon Yang, Jae-Eun Pi, Hyunkoo Lee, GiHeon Kim, Byoung-Hwa Kwon, Seong Mok Cho, Jeong-Ik Lee, Yong-Hea Kim, Kyoung Ik Cho, Sung Haeng Cho, Seung-Woo Lee, and Chi-Sun Hwang, “Light Adaptable Display for Future Advertising Service”, The 15th International Meeting on Information Display (IMID2015), Daegu, Korea, Aug. 18-21 (2015). KIDS Awards (Bronze Award)
41. Jong Tae Lim, Hyunkoo Lee, Seong Chu Lim, Nam Sung Cho, Byoung-Hwa Kwon, Jaehyun Moon, Byoung-Gon Yu, and Jeong-Ik Lee, “High-quality Uniform Dry Transfer of Top Multilayered Graphene Electrode to Create Transparent Organic Light-emitting Diodes”, Graphene Week 2015, Manchester, UK., Jun. 22-26 (2015).
40. Hyunkoo Lee, Jong Tae Lim, Nam Sung Cho, Seong Chu Lim, Byoung-Hwa Kwon, Hyunsu Cho, Jun-Han Han, Byoung-Gon Yu, and Jeong-Ik Lee, “A Novel Laminated Organic Light-Emitting Diodes with a Multi-Layered Graphene Top Anode”, Display Week 2015 International Symposium, Seminar and Exhibition, San Jose, USA, Jun. 2-5 (2015).
2014
39. J.T. Lim, H. Lee, J-H. Han, J. Moon, B-G. Yu, J.Y. Kim, H.Y. Chu, J-I. Lee, “Challenges in transparent organic light-emitting diodes employing the top multilayered graphene as the cathode”, International Conference on Diamond and Carbon Materials 2014, Madrid, Spain, Sep. 7-11 (2014).
38. Joo Yeon Kim, Jaehyun Moon, Seung Koo Park, Ji-Young Oh, Hyunkoo Lee, Jonghee Lee, Doo-Hee Cho, Jin Wook Shin, Jong Tae Lim, Seong M. Cho, Hojun Ryu, Hye Yong Chu, Jeong-Ik Lee “Surface Roughness Effects on Optical Contrast and Response Time of Electrochromic Devices”, the 65th Annual Meeting of the International Society of Electrochemistry, Lausanne, Switzerland, Aug. 31 – Sep. 5 (2014).
37. Woo Jin Sung, Chul Woong Joo, Nam Sung Cho, Hyunkoo Lee, Joohyun Hwang, Jeong-Ik Lee, Ga-Won Lee, and Jonghee Lee, “Semi-Transparent Colored Organic Light-Emitting Diodes by Embedding a Micro-Cavity Structure”, The 14th International Meeting on Information Display (IMID2014), Daegu, Korea, Aug. 26-29 (2014).
36. Jong Tae Lim, Seong M. Cho, Hyunkoo Lee, Jun-Han Han, Jonghee Lee, Jaehyun Moon, Tae-Youb Kim, Byoung-Gon Yu, Chil Seong Ah, Hojun Ryu, Jeong-Ik Lee, and Hye Yong Chu, “Integration of Reflective Colored OLED for Light-Adaptable Displays”, The 14th International Meeting on Information Display (IMID2014), Daegu, Korea, Aug. 26-29 (2014).
35. Hyunkoo Lee, Jeonghun Kwak, Jeong-Ik Lee, and Changhee Lee, “Device characteristics of green and blue phosphorescent organic light-emitting diodes with red dye doped hole transport layers”, 248th ACS National Meeting & Exposition, San Francisco, USA, Aug. 10-14 (2014).
34. Joo Yeon KIM, Ji-Young OH, Hyunkoo LEE, Jonghee LEE, Nam Sung CHO, Jeong-Ik LEE, Seong M. CHO, Hojun RYU, Hye Yong CHU, “Stable Metal-Free Electrodes for Electrochromic Applications”, Carbon 2014, Jeju, Korea, Jun. 29 – Jul. 4 (2014).
33. Jun-Han Han, Jaehyun Moon, Joohyun Hwang, Hyunkoo Lee, JongHee Lee, Nam Sung Cho, Seung Koo Park, Byung-Gon Yu, and Jeong-Ik Lee, “LUMINANCE SIMULATION AND FABRICATION IN FLEXIBLE OLED PANEL FOR LIGHTING”, The 10the International conference on organic electronics (ICOE2014), Modena, Italy, Jun. 11-13 (2014).
2013
32. Hyunkoo Lee, Yongwon Kwon, Heeyoung Jung, Chi-Sun Hwang, Changhee Lee, “Enhanced Performances in Inverted Bottom-emission Organic Light-emitting Diodes with KBH4-doped Electron Injection Layer”, The 2nd International Conference on Advanced Electromaterials (ICAE2013), Jeju, Korea, Nov. 12-15 (2013). Best Poster Award
31. Yongwon Kwon, Minsun Yoo, Hyunkoo Lee, Jungjin Yang and Changhee Lee, “P-doped Di-[4-(N,N-ditolyl-amino)-phenyl]cyclohexane for Improving Power Efficiency of Organic Light-Emitting Diodes”, SID Display week 2013, Vancouver, Canada, May. 23-26 (2013).
30. Hyunkoo Lee, Yongwon Kwon, and Changhee Lee, “Efficient and Color Stable Phosphorescent Inverted Bottom-Emission White Organic Light-Emitting Diodes”, Sixth International Conference on Advanced Materials and Nanotechnology (AMN6), Auckland, New Zealand, Feb. 11-15 (2013).
29. Donggu Lee, Jaehoon Lim, Lisa zur Borg, Myeongjin Park, Hyunkoo Lee, Seonghoon Lee, Kookheon Char, Rudolf Zentel and Changhee Lee, “Investigation of Hole Injection Barrier of Quantum Dot-Conducting Polymer Hybrids LEDs,” 20회 반도체 학술대회, 성우리조트, Korea, Feb. 4-6 (2013).
2012
28. Yongwon Kwon, Hyunkoo Lee and Changhee Lee, Inverted Top-Emitting Organic Light-Emitting Diodes with MoO3/Ag/WO3 Multilayer Anode,” The 12th International Meeting on Information Display, Daegu, Korea, Aug 28-31 (Aug, 2012).
27. Youngjun Ko, Hyunkoo Lee, Yongwon Kwon, and Changhee Lee, “Improved Efficiency of Polymer Solar Cells by Using Potassium Borohydride as an Electron Injection Layer,” SPIE Optics+Photonics, San Diego, USA, Aug 12-16 (Aug, 2012).
26. SuYeon Park, Hyunkoo Lee, Jungjin Yang and Changhee Lee, “Simulation of CRI and CCT for white OLEDs consisting of three different colors,” International Conference on Science and Technology of Synthetic Metals 2012, Atlanta, USA, July 8-13 (Jul, 2012).
25. Myeongjin Park, Hyunduck Cho, Hyunkoo Lee, Donggu Lee, Jaehoon Lim, Kookheon Char, Seonghun Lee, and Changhee Lee, “Efficient red, green, and blue QD-LEDs fabricated with the QD transplanting process on a common hole-transport layer,” 50th SID International Symposium, Seminar & Exhibition, June. 7, Boston, USA, P.72 (Jun, 2012).
24. Hyuk Ahn, Hyunkoo Lee, Jungjin Yang, and Changhee Lee, “Highly efficient electron-injection layer of LiF/Yb bilayer for top-emitting OLEDs,” 50th SID International Symposium, Seminar & Exhibition, June. 7, Boston, USA, P.112 (Jun, 2012).
23. Hyunkoo Lee, Young Kwan Kim, and Changhee Lee, “Improved performances in phosphorescent OLEDs using solution-processed vanadium pentoxide as a hole-injection layer,” 50th SID International Symposium, Seminar & Exhibition, June. 7, Boston, USA, P.111 (Jun, 2012). Best of the SID12 Symposium
22. Yongwon Kwon, Myeongjin Park, Hyunkoo Lee and Changhee Lee, “Improvement of Efficiency of Polymer Light-Emitting Diodes using Solution-Processed Small Molecular Electron Transport Layer,” 2012 MRS Spring Meeting, Moscone West Convention Center, San Fransisco, CA, J14.3 (Apr, 2012).
2011
21. Hyunkoo Lee, Hyuk Ahn, and Changhee Lee, “Efficient inverted bottom-emission organic light-emitting diodes with ytterbium-doped electron injection layer,” The 7th International Conference on Advanced Materials and Devices, Jeju, Korea, pp. 376 (Dec, 2011).
20. Hyuk Ahn, Wonjun Song, Hyunkoo Lee, Kookheon Char, Seonghoon Lee and Changhee Lee, “Highly efficient top-emitting organic light emitting diodes with LiF/Yb bilayer as an electron injection layer,” SPIE Optics+Photonics, San Diego, USA (Aug, 2011). Honorable Mention Best Student Paper Award 2011
19. Donggu Lee, Seunguk Noh, Jun Young Kim, Hyunkoo Lee, Jeonghun Kwak, and Changhee Lee, “Temperature Dependence of Current-Voltage Characteristics of Polymer Solar Cells with MoO3 and PEDOT:PSS as Hole Injection Layer,” Nano Korea 2011, KINTEX, Korea (Aug, 2011).
8. Myeongjin Park, Hyunduck Cho, Hyunkoo Lee, Jeonghun Kwak and Changhee Lee, “Characteristics of Organic Thin-Film Transistors with a Gate Dielectric Deposited with Self-Assembled Monolayer of Various Alkyl Chain Lengths,” Nano Korea 2011, KINTEX, Korea (Aug, 2011).
17. Hyunkoo Lee, Jeonghun Kwak, Jaehoon Lim, Kookheon Char, Seonghoon Lee and Changhee Lee, “Improvement of efficiency in inverted bottom-emission white OLEDs by doping the hole transport layer,” 69th DEVICE RESEARCH CONFERENCE, Conference Digest p.95, UCSB, USA (Jun, 2011).
16. Hyunkoo Lee, Hyuk Ahn and Changhee Lee, “Highly Efficient Inverted Organic Light-Emitting Diodes with Tin Dioxide Nanoparticles as an Electron Injection Layer,” The 22nd International Conference on Molecular Electronics and Devices, Pohang, Korea, May.19~20 (May, 2011).
2010
15. Hyunkoo Lee, Jungjin Yang, Hyuk Ahn, and Changhee Lee, “Improvement of power efficiency of phosphorescent white organic light-emitting diodes with p-doped hole transport layer,” 8th International Conference on Electroluminescence & Organic Optoelectronics (ICEL 2010), p.51, University of Michigan, Ann Arbor, USA, Oct.17~21 (Oct, 2010).
14. Hyunkoo Lee, Jeonghun Kwak, Insun Park, Sangtaek Noh, Do Y. Yoon, and Changhee Lee, “Highly Efficient Inverted Bottom-Emission White Organic Light Emitting Diodes,” International Meeting on Information Display 2010, p.212, Kintex, Korea, Oct 11-15 (Oct, 2010).
13. Hyunkoo Lee, Jeonghun Kwak, Changhee Lee, Insun Park, Do Y. Yoon, “Highly Efficient Inverted Bottom-Emission OLEDs with ZnO Nanoparticles as the Electron-Injection Layer,” 48th SID International Symposium, Seminar & Exhibition, May. 23, Seattle, USA, P.160 (2010).
2009
12. Hyunkoo Lee and Changhee Lee, “Investigation of Transport Properties in Polymer/Fullerene Blends using Transient Electroluminescence Technique,” Materials Research Society 2009 Fall Meeting, Boston, USA, Nov 30 - Dec 4 (2009).
11. Hyunkoo Lee and Changhee Lee, “Color stable and Efficient White Organic Light Emitting Diodes with Phosphorescent Emitters,” International Meeting on Information Display 2009, p.84, Kintex, Korea, Oct 12-16 (2009).
10. Heume-Il Baek, Seunguk Noh, Hyunkoo Lee, C. K. Suman, and Changhee Lee, “Conduction Properties of Phosphorescent Emitting Layers and Their Application to Optimizing White OLEDs,” International Meeting on Information Display 2009, p.182, Kintex, Korea, Oct 12-16 (2009).
2007
9. C. H. Lee, H. S. Bang, J. Y. Yun, Y. C. Shin, D. S. Kwon, H. K. Lee, "Improvement of Efficiency and Reliability of OLED Devices", Proceedings of Flat Panel Display Seminar, International LED Expo & FPD Korea, pp.89-95, KINTEX, Korea, May 30 (2007).
8. C. H. Lee, H. I. Baek, H. K. Lee, "Charge carrier transport in amorphous organic semiconductors", Seoul National University Joint Symposium on Sustainability and University, pp.12, Hokkaido University, Jan 25~26 (2007).
2006
7. H. I. Baek, H. K. Lee, C. H. Lee, "Enhancement of the OLED driving stability by introducing an LiF-mixed α-NPD hole-transport layer", SPIE, San Diego, California, USA, Aug 13~17 (2006).
2005
6. H. K. Lee, Y. C. Shin, D. S. Kwon, C. H. Lee, "Organic light-emitting diodes with F16CuPC as an efficient hole injection layer", The 4th International Conference on Advanced Materials and Devices, Jeju, Dec 5-6 (2005).
5. C. H. Lee , Y. C. Shin, D. S. Kwon, H. K. Lee, "Improved electroluminescence efficiency of organic light-emitting diodes by using molecularly doped hole-transport layer", Proceedings of the International Society for Optical Engineering, Jul 31 - Aug 4 (2005).
4. H. K. Lee, D. S. Kwon, C. H. Lee, "Enhanced efficiency of organic light-emitting diodes by doping the electron-transport layer", Proceedings of the 5th International Meeting on Information Display, pp. 1410-1412, COEX, Seoul, Korea, Aug 19-22 (2005).
3. D. S. Kwon, J. H. Song, H. K. Lee, Y. C. Shin, C. H. Lee, "Enhanced efficiency of organic light-emitting diodes by doping the hole-transport layer", Proceedings of the 5th International Meeting on Information Display, pp. 1401-1403, COEX, Seoul, Korea, Aug 19-22 (2005).
2. C. H. Lee, K. M. Park, D. S. Kwon, H. K. Lee, "Improving the performance of organic thin-film transistors by doping the electrode interfaces", The 5th International Conference on Electroluminescence of Molecular Materials and Related Phenomena, Phoenix, Arizona, USA, Jan 17-21 (2005).
1. H. K. Lee, D. S. Kwon, C. H. Lee, J. H. Song, D. H. Hwang, "Enhanced efficiency of organic light-emitting diodes by doping the hole-transport layer", The 5th International Conference on Electroluminescence of Molecular Materials and Related Phenomena, Phoenix, Arizona, USA, Jan 17-21 (2005).