This color means first author and this color means corresponding author*.

[2019]

[6-59] Hassan Hafeez, P. Justin Jesuraj, Dong Hyun Kim, Jong Chan Lee, Jun Young Shin, Sang Ho Rhee, Won Ho Lee, Dae Keun Choi, Chul Hoon Kim, Janardan Lamichhane, Anaya Pokhrel, Tae-Su Kim, Jae Kyung Sohng, Hyung Joong Yun, Jong Bae Park, Hee-Suk Chung, Tae-Sung Bae, Sang Geul Lee, Hyun-Woo Park, Kwun-Bum Chung, Jang Hyuk Kwon, Myungkwan Song, Chang-Su Kim, and Seung Yoon Ryu, "The Effect of Introducing Antibiotics into Organic Optoelectronic Devices", (Nature) Communications Physics, 2:130, 1-13, (2019) [pdf] [supporting] [the corresponding author]

[5-58] Hassan Hafeez, Chuanqian Shi, Chang Min Lee, Justin Jesuraj Periyanayagam, Dong Hyun Kim, Myungkwan Song, Chang-Su Kim, Zhanan Zou, Jianliang Xiao*, Seung Yoon Ryu*, "Improved Design of Highly Efficient Microsized Lithium-Ion Batteries for Stretchable Electronics", Journal of Micromechanics and Microengineering, Vol 29, 075008-075008+11, (2019) [pdf] [supporting] [the corresponding author]

[4-57] Subramanian Muruganantham, Gunasekaran Velmurugan, Justin Jesuraj, Seung Yoon Ryu,* Ponnambalam Venuvanalingam* and Rajalingam Renganathan*, "Impact of tunable 2-(1H-indol-3-yl)acetonitrile based fluorophores towards optical, thermal and electroluminescence properties", RSC Advances, Vol 9, 14544-14557, (2019) [pdf] [supporting] [the corresponding author]

[3-56]  Hassan Hafeez, Dae Keun Choi, Chang Min Lee, P. Justin Jeusraj, Dong Hyun Kim, Myungkwan Song, Jun Fei Ma, Chang Su Kim and Seung Yoon Ryu, "Replacement of n-type layers with non-toxic APTES interfacial layer to improve the performance of amorphous Si thin-film solar cells", RSC Advances, Vol 9, 7536-7542, (2019) [pdf] [supporting] [the corresponding author]

 

[2-55]  Jong Chan Lee, Jeoungho Min, P. Justin Jeusraj, Hassan Hafeez, Dong Hyun Kim, Won Ho Lee, Dae Keun Choi, Jun Hwan Cha, Chang Min Lee, Myungkwan Song,  Chang Su Kim and Seung Yoon Ryu, "Improved stability of silver nanowire (AgNW) electrode for high

temperature applications using selective photoresist passivation

", Microelectronic Engineering,   Vol. 206, 6~11, (2019) [pdf] [the corresponding author]

[1-54] Jongmoon Shin, Jeoungho Min, P. Justin Jeusraj,Hassan Hafeez, Dong Hyun Kim, Jong Chan Lee, Won Ho Lee, Dae Keun Choi, Chul Hoon Kim, Myungkwan Song,  Chang Su Kim, Seung Yoon Ryu, "Harvesting Near- and Far-Field Plasmonic Enhancements from Large-Size Gold Nanoparticles for Enhanced Performance in Organic Bulk Heterojunction Solar Cells", Organic Electronics, Vol. 66, 94~101, (2019) [pdf] [supporting] [the corresponding author]

[2018]

[5-53]  Won Ho Lee, Dong Hyun Kim, P. Justin Jesuraj, Hassan Hafeez, Jong Chan Lee,  Dae Kuen Choi, Tae-Sung Bae, Seung Min Yu, Myungkwan Song, Chang Su Kim and Seung Yoon Ryu, "Improvement of Charge Balance, Recombination Zone Confinement, and Low Efficiency Roll-off in Green Phosphorescent OLEDs by Altering Electron Transport Layer Thickness", Materials Research Express,  Vol. 5, 076201-1~8, (2018) [pdf] [the corresponding author]

[4-52] P. Justin Jesuraj, Chuanqian Shi, Dong Hyun Kim, Hassan Hafeez, Jong Chan Lee, Won Ho Lee, Dae Keun Choi, Zhanan Zou, Jianliang Xiao, Jeongho Min, Myungkwan Song, Chang Su Kim,* and Seung Yoon Ryu, "Direction-Dependent Stretchability of AgNW Electrodes on Microprism-Mediated Elastomeric Substrates", AIP Advances, Vol. 8, 065227-1~9 (2018) [pdf] [the corresponding author]

[3-51]  Dong Hyun Kim, Won Ho Lee, P. Justin Jesuraj, Hassan Hafeez, Jong Chan Lee,  Dae Kuen Choi, Aeran Song, Kwun-Bum Chung, Tae-Sung Bae, Myungkwan Song, Chang Su Kim and Seung Yoon Ryu, "Improved Charge Balance in Phosphorescent Organic Light-Emitting Diodes by Different Ultraviolet Ozone Treatments on Indium Tin Oxide", Organic Electronics, Vol. 61, 343-350 (2018) [pdf] [supporting]  [the corresponding author]

[2-50] P. Justin Jesuraj, Hassan Hafeez, Sang Ho Rhee, Dong Hyun Kim, Jong Chan, Won Ho Lee, Dae Kuen Choi, Aeran Song, Kwun-Bum Chung, Myungkwan Song, Chang Su Kim and Seung Yoon Ryu, "Enhanced Device Efficiency in Organic Light-Emitting Diodes by Dual Oxide Buffer Layer", Organic Electronics,  Vol. 56, 254−259, (2018) [pdf] [supporting] [the corresponding author]

 

[1-49] P. Justin Jesuraj, Hassan Hafeez, Dong Hyun Kim, Jong Chan, Won Ho Lee, Dae Kuen Choi, Chul Hoon Kim, Myungkwan Song, Chang Su Kim and Seung Yoon Ryu, "Recombination Zone Control without Sensing Layer and the Exciton Confinement in Green Phosphorescent OLEDs by excluding Interface Energy Transfer", Journal of Physical Chemistry C,  Vol. 122, 2951−2958, (2018) [pdf] [supporting] [the corresponding author]

[2017]

[5-48] P. Justin Jesuraj, Hassan Hafeez, Sang Ho RheeDong Hyun Kim, Myungkwan Song, Chang Su Kim, and Seung Yoon Ryu*"Effects of Doping Concentration and Emission Layer’s Thickness for Recombination Zone and Exciton Density Control in Blue Phosphorescent Organic Light-Emitting Diodes", ECS Journal of Solid State Science and Technology, 6 (12) R170-R174 (2017), [pdf] [the corresponding author]

[4-47] Hassan Hafeez, Zhanan Zou, Dong Hyun Kim, Jun Young Shin, Myungkwan Song, Chang Su Kim, Won Jin Choi, Jizhou Song, Jianliang Xiao and Seung Yoon Ryu*,"Multiaxial Wavy Top-Emission Organic Light-Emitting Diodes on Thermally Prestrained Elastomeric Substrates", Vol. 48, 314–322, (2017) Organic Electronics [pdf][supporting] [the corresponding author]

[346] Seung Yoon Ryu*Jihoon Seo, Hassan Hafeez, Myungkwan Song, Jun Young Shin, Dong Hyun Kim, Yong Chan Jung and Chang-Su Kim*, "Effects of the Wrinkle Structure and Flat Structure Formed during Static Low-Temperature Annealing of ZnO on the Performance of Inverted Polymer Solar Cells", The Journal of Physical Chemistry C, Vol. 121, 9191–9201, (2017) [pdf] [supporting] [the corresponding author]

 

[2-45] Seung Yoon Ryu*Jihoon Seo, Hassan Hafeez, Myungkwan Song, Jun Young Shin, Dong Hyun Kim, Yong Chan Jung, and Chang-Su Kim*, "Improved Hydrogenated Amorphous Silicon Thin-Film Solar Cells by Replacing n-type Si Layer with PFN Interfacial Layer", Synthetic Metals,  Vol. 228, 91–98, (2017) [pdf] [supporting] [the corresponding author]

[1-44] Sang Ho Rhee, Chang Su Kim, Myungkwan Song* and Seung Yoon Ryu*, "The Correlation between Interlayer’s Thickness and Device Performance in Blue Phosphorescent Organic Light-Emitting Diodes with Quantum Well Structure", Organic Electronics,  Vol 42,  343-347, (2017) [pdf] [the corresponding author]

 

[2016]


[2-43] Selvakumaran Nagamani, Gunasekar Kumarasamya, Myungkwan Song, Chang Su Kim, Dong-Ho Kim, Seung Yoon Ryu, Jae-Wook Kang, Sung-Ho Jin, "Optical absorption and electrical properties of enhanced efficiency in organic solar cells as interfacial layer with Au NPs", Synthetic Metals, Vol. 217, 117-122, (2016) [pdf] [the corresponding author]


[1-42] Sang Ho Rhee, Sung Hyun Kim and Seung Yoon Ryu, "Effects of Recombination Zone Formation on Optical Path Length and Device Performance in Blue Phosphorescent Organic Light-Emitting Diodes with Quantum Well Structure", ECS Journal of Solid State Science and Technology,  Vol. 5 (3) R44-R49, 2016 [pdf] [the corresponding author]

 

[2015]


[4-41] Sang Ho Rhee, Kyoung Soo Yook, Sung Hyun Kim and Seung Yoon Ryu, "Configuration Effects of Exciton Blocking Layer with Low Electron Mobility's Electron Transport Layer in Blue Phosphorescent Organic Light-Emitting Diodes", ECS Journal of Solid State Science and Technology,  Vol. 5 (2) R1-R5, 2016 [pdf] [the corresponding author]


[3-40] Sung Hyun Kim, Tae-Sung Bae, Wooseok Heo, Taiha Joo, Kyung-Deok Song, Hong-Gyu Park, and Seung Yoon Ryu, "Effects of Gold-Nanoparticle Surface and Vertical Coverage by Conducting Polymer between ITO and Hole Transport Layer on Organic Light-Emitting Diodes", ACS Applied Materials & Interfaces,  Vol. 7(27), pp 15031–15041, 2015 [the corresponding author] [pdf] [supporting]


[2-39] Sang Ho Rhee, Sung Hyun Kim, Hwang Sik Kim, Jun Young Shin, Jeeban Bastola and Seung Yoon Ryu, "Heavily Doped, Charge-Balanced Fluorescent Organic Light-Emitting Diodes from Direct Charge Trapping of Dopants in Emission Layer", ACS Applied Materials & Interfaces,  Vol. 7(30), 16750−16759, 2015 [the corresponding author] [pdf] [supporting]


[1-38] Taekyung Lim, Chang Su Kim, Myungkwan Song, Seung Yoon Ryu and Sang Hyun Ju , "Organic Solar Cells with Surface-treated Graphene Thin Film as Interfacial Layer", Synthetic Metals,  Vol. 205, 1-5, 2015 [the corresponding author] [pdf]

 

[2014]

 

[5-37] Sang Ho Rhee, Chang Su Kim, Myungkwan Song, Kwun-Bum Chung, Seung Yoon Ryu, "Effects of Position of Exciton-Blocking Layer on Characteristics of Blue Phosphorescent Organic Light-Emitting Diodes",ECS Solid State Letters, Vol. 3 (10) R49-R52, 2014 [the corresponding author] [pdf]

 

[4-36] Sang Ho Rhee, Ki bong Nam, Hwang Sik Kim, Yong-Min Lee, Ki Won Kim, Nam Ihn Jo, Chang Su Kim, Myungkwan Song, Kwun-Bum Chung, Sung Hyun Kim and Seung Yoon Ryu, "Formation of Recombination Zone in Blue Phosphorescent Organic Light-Emitting Diodes with Different Electron Transport Layers and Its Effects on Device Performance", ECS Journal of Solid State Science and Technology, Vol. 3 (8) R164-R167, 2014 [the corresponding author] [pdf]

 

[3-35]  Wonjung Choi, Chang Zoo Kim, Chang Su Kim, Wooseok Heo, Taiha Joo, Seung Yoon Ryu, Hogyoung Kim, Hongjoon Kim, Ho Kwan Kang, and Sungjin Jo, "A Repeatable Epitaxial Lift-Off Process from a Single GaAs Substrate for Low-Cost and High-Efficiency III-V Solar Cells", Advanced Energy Materials, Vol. 4, 1400589, 2014 [pdf]

 

[2-34] Sang Ho Rhee, Ki bong Nam, Chang Su Kim, Myungkwan Song, Woosum Cho, Sung-Ho Jin and Seung Yoon Ryu, "Effect of Electron Mobility of the Electron Transport Layer on Fluorescent Organic Light-Emitting Diodes",ECS Solid State Letters,  Vol. 3 (5) R19-R22, 2014 [the corresponding author] [pdf]

 

[1-33] Sang Ho Rhee, Ki bong Nam, Chang Su Kim, and Seung Yoon Ryu, "Control of the Color Coordinates on Blue Phosphorescent Organic Light-Emitting Diodes by Emission Zone", ECS Solid State Letters, Vol. 3 (3) R7-R10, 2014 [the corresponding author] [pdf]

[2013]

 

[6-32] Ji-Hwan Yang, Hyung-Hwan Jung, Jihoon Seo, Gwang-Dae Kim, Dong-Ho Kim, Dong-Chan Lim, Sung-Gyu Park, Jae-Wook Kang, Myungkwan Song, Min-Seung Choi, Jung-Dae Kwon, Kee-Seok Nam, Yongsoo Jeong, Se-Hun Kwon, Yun Chang Park, Yong-Cheol Kang, Kwun Bum Chung, Chang-Su Kim, Keong Su Lim and Seung Yoon Ryu, "Dopant-Free Hydrogenated Amorphous Silicon Thin-Film Solar Cells Using Molybdenum oxide and Lithium Fluoride", The Journal of Physical Chemistry C, Volume 117, pages 23459, 2013 [the corresponding author] [pdf] [supporting]

 

[5-31] Hyung Hwan Jung, Jung-Dae Kwon, Sung Hun Lee, Chang Su Kim, Kee-Seok Nam, Yongsoo Jeong, Seung Yoon Ryu, Dong-Ho Kim and Sung-Gyu Park, "Doping-free silicon thin film solar cells using a vanadium pentoxide window layer and a LiF/Al back electrode", Applied Physics Letters, Volume 103, 073903, 2013 [pdf]

 

[4-30] Hyung Hwan Jung, Dong Ho Kim, Chang Su Kim, Tae-Sung Bae, Kwun-Bum Chung, Seung Yoon Ryu, "Organic-inorganic hybrid thin-film solar cells using conducting polymer and Au-NPs", Applied Physics Letters, Volume 102, pages 183902, 2013 [the corresponding author] [pdf]

 

[3-29] Myungkwan Song, Jae-Wook Kang, Dong-Ho Kim, Jung-Dae Kwon, Sung-Gyu Park, Sanggil Nam, Sungjin Jo, Seung Yoon Ryu, and Chang Su Kim,"Self-assembled monolayer as an interfacial modification material for highly efficient and air-stable inverted organic solar cells", Applied Physics Letters, Volume 102, pages 143303, 2013 [pdf]

 

[2-28] Ji Hoon Seo, Dong-Ho Kim, Se-Hun Kwon, Yun Chang Park, Hyung Hwan Jung, Hyung Woo Lee, Jung-Dae Kwon, Sung-Gyu Park, Kee-Seok Nam, Yongsoo Jeong, Seung Yoon Ryu, Jae-Wook Kang, and Chang Su Kim, "Highly efficient hybrid thin-film solar cells using a solution-processed hole-blocking layer", Physical Chemistry Chemical Physics, Volume 15, Pages 1788-1792, 2013 [the corresponding author] [pdf]

 

[1-27] Ji Hoon Seo, Jae-Wook Kang, Sunghoon Jung, Dae Sung You, Seung Yoon Ryu, Dong-Ho Kim, Sungjin Jo, Hyung Woo Lee and Chang Su Kim, "Simple wafer-scale growth and transfer of graphene film as transparent electrode for organic solar cells", ECS Solid State Letters, Volume 2, Issue 2, Pages M13-M16, 2013 [pdf]

[2012]

 

[7-26]  Young Joo Lee, Min Seung Choi, Dong Ho Kim, Chang Su Kim, Myung Kwan Song, Jae Wook Kang, Yongsoo Jeong, Kee Seok Nam, Sung Hun Lee, Se-Hun Kwon, Seung Yoon Ryu, and Jung-Dae Kwon, "Efficient Hydrogenated Amorphous Silicon Thin-Film Solar Cells using Zinc Oxide deposited by Atomic Layer Deposition as a Protective Interfacial Layer", The Journal of Physical Chemistry C, 2012, Vol 116, Issue 44, Pagess 23231-23235 [the corresponding author] [pdf], [supporting]

 

[6-25]  Taekyung Lim, Seung-Yoon Ryu, and Sanghyun Ju, "Direct growth of SnO2 nanowires on WOx thin film", Nanotechnology, Vol 23, pp 485702(6pp), 2012 [pdf]

 

[5-24]  Kyoung Soo Yook, Min Seung Choi, Dong Ho Kim, Chang Su Kim, Myung Kwan Song, Jae Wook Kang, Jung Dae Kwon, Yong Soo Jeong, Kee Seok Nam, Sung Hun Lee, Hyung Hwan Jung, Kwun Bum Chung, Tae-Sung Bae, Jun Yeob Lee, and Seung Yoon Ryu, "Hydrogenated Amorphous Silicon Thin Film Solar Cells using a Hybrid Buffer Layer of Gold Nanoparticle and Tungsten Oxide Thin Film", ECS Solid State Letters, 2012, Volume 1, Issue 5, Pages Q42-Q44 [the corresponding author] [pdf]

 

[4-23]  Ji Hoon Seo, Dong-Ho Kim, Se-Hun Kwon, Myungkwan Song, Min-Seung Choi, Seung Yoon Ryu, Hyung Woo Lee, Yun Chang Park, Jung-Dae Kwon, Kee-Seok Nam, Yongsoo Jeong, Jae-Wook Kang, and Chang Su Kim, "High Efficiency Inorganic/Organic Hybrid Tandem Solar Cells", Advanced Materials, Vol 24, 4523-4527, 2012 [pdf][cover]

 

[3-22]  Yong-Jin Kang, Chang Su Kim, Won-Sub Kwack, Seung Yoon Ryu, Myungkwan Song, Dong-Ho Kim, Suck Won Hong, Sungjin Jo, Se-Hun Kwon and Jae-Wook Kang, "Air-Stable Inverted Organic Solar Cells with an Ultrathin Electron-Transport Layer Made by Atomic Layer Deposition", ECS Solid State Letters, Vol 1 (1) Q1-Q3 (2012), Published July 17, 2012 [pdf] 

 

[2-21]  Seung Yoon Ryu, Sung Hyun Kim, Chang Su Kim, Sungjin Jo, Jun Yeob Lee, "Multi-stacked organic light-emitting diodes using zinc oxide nanoparticle interfacial layers", Current Applied Physics, 12 (2012) 1378-1380, Available online 4 April 2012 [the first author & the corresponding author] [pdf]

 

[1-20] Martin Bettge, Seung Yoon Ryu, Scott MacLaren, Steve Burdin, Ivan Petrov, Min-Feng Yu, Ernie Sammann, Daniel P. Abraham, "Hierarchically textured LixMn2−yO4 thin films as positive electrodes for lithium-ion batteries", Journal of Power Sources, 206 (2012) 288– 294, Available online 28 January 2012 [pdf]

[2007 ~ 2011]

 

[1]  Seung Yoon Ryu, Hong Koo Baik, Youn Sang Kim, Jun Yeob Lee, “Organic Light-Emitting bistable memory devices with a self-assembled organic nanoparticles as a charge trapping center”, Electrochemical and Solid-State Letters, 13 (9), J103-J105 (2010)

 

[2]  Seung Yoon Ryu, Chang Ho Lee, Il Soo Oh, Seung Yong Song, Kyu Hwan Hwang,  Hyeon Seok Hwang, Man Hyeop Han, Byoung Har Hwang, Hong Koo Baik, Youn Sang Kim, Jun Yeob Lee, “Efficient Inverted Top-Emitting Organic Light Emitting Diodes with Transparent and Surface-Modified Multilayer Anodes”, Electrochemical and Solid-State Letters, 13 (5), J43-J46 (2010)

 

[3]  Seung Yoon Ryu, Jianliang Xiao, Won il Park, Kwang Soo Son, Yonggang Y. Huang, Ungyu Paik, John A. Rogers, “Lateral Buckling Mechanics in Silicon Nanowires on Elastomeric Substrates”, Nano Letters, 9, 3214 (2009)

 

[4]  Seung Yoon Ryu, Byoung Har Hwang, Ki Wan Park, Hyeon Seok Hwang, Jin Woo Sung, Chang Ho Lee, Seung Yong Song, Se Jong Lee, “Highly efficient organic light-emitting diodes with a quantum dot interfacial layer”, Nanotechnology, 20, 065204 (2009)

 

[5]  Seung Yoon Ryu, Jong Tae Kim, Joo Hyun Noh, Byoung Har Hwang, Chang Su Kim, Sung Jin Jo, Hyeon Seok Hwang, Seok Ju Kang, Hong Koo Baik, Chang Ho Lee, Seung Yong Song, Se Jong Lee, “Polymeric tandem organic light-emitting diodes using a self-organized interfacial layer”, Applied Physics Letters, 92, 103301 (2008)

 

[6]  Seung Yoon Ryu, Joo Hyun Noh, Byoung Har Hwang, Chang Su Kim, Sung Jin Jo, Jong Tae Kim, Hyeon Seok Hwang, Hong Koo Baik, Hee Seong Jeong, Chang Ho Lee, Seung Yong Song, Seung Ho Choi, Si Young Park, “Transparent organic light-emitting diodes consisting of a metal oxide multilayer cathode”, Applied Physics Letters, 92, 023306 (2008)

 

[7]  Seung Yoon Ryu, Sung Jin Jo, Chang Su Kim, Sang Hun Choi, Joo hyon Noh, Hong Koo Baik, Hee Seong Jeong, Dong Won Han, Seung Yong Song, Kyu Sung Lee, “Transparent organic light-emitting diodes using resonant tunneling double barrier structures”, Applied Physics Letters, 91, 093515 (2007)

 

[8]  Seung Yoon Ryu, Sang Hun Choi, Jong Tae Kim, Chang Su Kim, Hong Koo Baik, Hee Seong Jeong, “Highly efficient transparent organic light-emitting diodes by ion beam assisted deposition-prepared indium tin oxide cathode”, Applied Physics Letters, 91, 033513 (2007)

 

[9]   Boyeon Sim, Hyeonseok Hwang, Seungyoon Ryu, Hongkoo Baik, and Myeongkyu Lee, “Indium Tin Oxide Electrode with an Ultrathin Al Buffer Layer for Flexible Organic Light Emitting Diode”, Japanese Journal of Applied Physics, 49, 060205, (2010)

 

[10]  Joo Hyon Noh, Seung Yoon Ryu, Sung Jin Jo, Chang Su Kim, Sung-Woo Sohn, Phlip D. Rack, Dong-Joo Kim, and Hong Koo Baik , “Indium Oxide Thin-Film Transistors Fabricated by RF Sputtering at Room Temperature”, IEEE ELCTRON DEVICE LETTERS, 31, No. 6, JUNE (2010)

 

[11]  Jianliang Xiao, Seung Yoon Ryu, Yonggang Y. Huang, K. -C. Hwang, Ungyu Paik, John A. Rogers, “Mechanics of nanowire/nanotube in-surface buckling on elastomeric substrates”, Nanotechnology, 21, 085708 (2010)

 

[12] Sung Jin Jo, Chang Su Kim, Min Jung Lee, Jong Bok Kim, Seung Yoon Ryu, Joo Hyon Noh, Kyuwook Ihm, Hong Koo Baik, Youn Sang Kim, “Inducement of azimuthal molecular orientation of pentacene by imprinted periodic groove patterns for organic thin film transistors”, Advanced Materials, 20, 1146-1153 (2008)

 

[13]  Sung Jin Jo, Chang Su Kim, Jong Bok Kim, Seung Yoon Ryu, Joo Hyon Noh, Hong Koo Baik, Youn Sang Kim, Se Jong Lee, “Increase in indium diffusion by tetrafluoromethane plasma treatment and its effects on the device performance of polymer light-emitting diode”, Journal of Applied Physics, 103, 114502 (2008)

 

[14]  Woo Jin Kim, Chang Su Kim, Sung Jin Jo, Hyeon Seok Hwang, Seung Yoon Ryu, Hong Koo Baik, “Organic/inorganic hybrid passivation layers for organic thin-film transistors”, Semiconductor Science and Technology, 23, 075034 (2008)

 

[15]  Sung Jin Jo, Chang Su Kim, Seung Yoon Ryu, Jong Bok Kim, Joo Hyon Noh, Se Jong Lee, Hong Koo Baik, “Characterization of CF4 plasma treated indium-tin-oxide surfaces used in organic light emitting diodes by x-ray photoemission spectroscopy”, Japanese Journal of Applied Physics, 46, 6814-6816 (2007)

 

[16]  Joo Hyon Noh, Chang Su Kim, Seung Yoon Ryu, Sung Jin Jo, “Low-Voltage-Driven Bottom-Gate Amorphous Indium-Gallium-Zinc-Oxide Thin-Film Transistors with High Dielectric Constant Oxide/Polymer Double-Layer Dielectric”, Japanese Journal of Applied Physics, 46, No. 7A, 4096-4098 (2007)

 

[17]  Chang Su Kim, Sung Jin Jo, Jong Bok Kim, Seung Yoon Ryu, Joo Hyon Noh, Hong Koo Baik, Se Jong Lee, Youn Sang Kim, “Superhydrophobic modification of gate dielectrics for densely packed pentacene thin film transistors”, Applied Physics Letters, 91, 063503 (2007)

 

[18]  Chang Su Kim, Sung Jin Jo, Jong Bok Kim, Seung Yoon Ryu, Joo Hyon Noh, Hong Koo Baik, Se Jong Lee, Youn Sang Kim, “Low leakage current gate dielectrics prepared by ion beam assisted deposition for organic thin film transistors”, Journal of Applied Physics, 102, 126101 (2007)

 

[19]  Chang Su Kim, Sung Jin Jo, Jong Bok Kim, Seung Yoon Ryu, Joo Hyon Noh, Hong Koo Baik, Se Jong Lee, Kie Moon Song, “High performance and low voltage pentacene thin film transistors fabricated on the flexible substrate”, Semiconductor Science and Technology, 22, 691-694 (2007)

 

 

International Conferences:

 

[4]  SeungYoon Ryu, Kee-Seok Nam, Yongsoo Jeong, Dong-Ho Kim, Jung-Dae Kwon, Jungheum Yun, Chang-Su Kim, “Highly efficient Amorphous Silicon Thin-Film Solar Cells using Gold Nanoparticles / Tunsten Oxide as a double interfacial layer”, IWTFSSC-4, 19th ~ 23th, March 2012, Neuchâtel, Switzerland

 

[3]   Seoung Yoon Ryu, Kwan-Hee Lee, Jun-Yeob Lee, Min-Chul Suh, “Pure color emission in top emission light emitting diodes by micro-cavity effect”, Samsung Tech. Conference, November 2004, Kiheung, Korea

 

[2]   Kwan Hee Lee, Seoung Yoon Ryu, Sang Il Park, Do Hyung Ryu, Hun Kim, Seung Yong Song, Bo Yong Chung, Yong Sung Park, Tae Wook Kang, Sang Chul Kim, Yu Sung Cho, Jin Woo Park, Jang Hyuk Kwon, Ho Kyoon Chung, “5.0 inch WVGA Top Emission AMOLED Display for PDA”, IMID (International Meeting on Information Display) 03, July 2003, Daegue, Korea

 

[1]   Kwan Hee Lee, Seoung Yoon Ryu, Jang Hyuk Kwon, Sang Wook Kim, Ho Kyoon Chung, “2.2” QCIF Full Color Transparent AMOLED Display”, SID (The society for Information Display) 03, 9.3/K.H.Lee, May 2003, Baltimore, USA

Display Convergence, Division of Display and Semiconductor Physics, College of Science and Technology,  Korea University Sejong Campus

2511 Sejong-ro, Sejong City, 339-770, Republic of Korea