Publications

[2024] 

[85] Enhanced Performance of Polymer Field-Effect Transistors via Substitutional Doping Performed Using Blended Polymer Films, Sung Woo Seo, Minho Yoon, Jin Hee Lee, Jung Hwa Seo, Jiyoul Lee*,  Transactions on Electrical and Electronic Materials (2024). https://doi.org/10.1007/s42341-024-00584-7

[84] n-Type Doping Effect of Anthracene-Based Cationic Dyes in Organic Electronics, Yonghee Kim, Minju Jung, Rajeev Kumar, Jeong-Mo Choi, Eun Kwang Lee* and Jiyoul Lee*,  ACS Applied Materials & Interfaces Vo. 16 No. 33, 43774–43785 (2024).

[83] Enhanced Synaptic Behavior of Neuromorphic Device Based on Organic Electrochemical Transistors by Adding Aminosilane, Dae-Hee Kim†, Jiyoul Lee†, Yonghee Kim, Hocheon Yoo, and Eun Kwang Lee, Organic Electronics Vol. 131, 107076 (2024).   [†] D.-H. K., and J.L. contributed equally to this work.

[2023] 

[82] Comparative study of physical doping and electrochemical doping in polymer thin-film transistors, Seung Hoon Oh, Jaehyun Yoo, Jiyoul Lee*, Macromolecular Research 31 (12), 1189-1197, (2023). 

[81] Assessment of biological properties of a methanolic extract obtained from the stem of Cissus vitiginea, Vasthi Gnanarani, Shanmugam Mahalingam, Hema Kesavan, Yalini Devi Neelan, Jiyoul Lee, Dong Wook Chang, Senthil Bakthavatchalam, Junghwan Kim, Biomass Conversion and Biorefinery, 1-12 (2023). 

[80] Conductivity maxima in electrolyte-gated transistors with molecular-doped semiconducting polymer films, Ju Han Lee, Dong Wook Chang, Junghwan Kim, Jiyoul Lee*, Journal of the Korean Physical Society 82 (5), 491-496. (2023)

[2022] 

[79] Low dark current density in organic photodiodes achieved by reduced trap states of conjugated polymers bearing a fluorinated moiety, Yongqi Bai, Sungwoo Seo, Jong-Woon Ha, Minho Yoon, Ning Yang, Hea Jung Park, Sung Cheol Yoon, Changjin Lee, Do-Hoon Hwang*, and Jiyoul Lee*, Journal of Materials Chemistry C 10 (48), 18127-18136 (2022). 

[78] Efficient Charge Transport Driven by Strong Intermolecular Interactions in Cyclopentadithiophene-Based Donor–Acceptor Type Conjugated Copolymers, Jiyoul Lee*, Joel Luke, Hyungju Ahn, Doyeon Kim, Chang-Hui Jin, Mun Ho Kim, Yong Sun Won, Minho Yoon, Ji-Seon Kim*, Advanced Electronic Materials Vol.8, No 9, 2200081, (2022).

[77] Semiconducting Polymer Nanowires with Highly Aligned Molecules for Polymer Field Effect Transistors, Keon Joo Park, Chae Won Kim, Min Jae Sung, Jiyoul Lee*, Young Tea Chun*, Electronics, Vol. 11, 648. (https://doi.org/10.3390/electronics11040648) (2022).

[76] Enhanced channel modulation in Aluminum- and Hydrogen-Doped Zinc-Oxide-Based transistors by complementary Dual-Gate operation, Minho Yoon, Jiyoul Lee*, Applied Surface Science, Vol. 585, 152662 (2022). 

[75] Comparative Study of Charge-Transport Behavior of Edge-on- and Face-on-Oriented Diketopyrrolopyrrole-Based Conjugated Copolymers Bearing Chalcogenophene Units, Hyun Woo Lee, Hee Su Kim, Doyeon Kim, Minho Yoon, Jiyoul Lee*, Do-Hoon Hwang, Chemistry of Materials Vol. 34, No 1, 314-324, (2022).

[74] Enhanced Performance of Cyclopentadithiophene-Based Donor-Acceptor-Type Semiconducting Copolymer Transistors Obtained by a Wire Bar-Coating Method, Doyeon Kim, Minho Yoon, Jiyoul Lee*, Polymers Vol. 14, No 2, (https://doi.org/10.3390/polym14010002), (2022)

[73] Effect of fluorine–fluorine repulsive coupling on charge transport in cyclopentadithiophene-based donor–acceptor-type conjugated copolymer films, Doyeon Kim, Minho Yoon, Young Tea Chun, Jiyoul Lee*, Organic Electronics Vol. 101, 106402 (2022). 

[72] Effect of Bias Stress in Inkjet-Printed Polymer Thin-Film Transistors: Generation and Annihilation of Subgap Density of States, Jiyoul Lee, Jaeman Jang, Jong Won Chung, Bang-Lin Lee, Dae Hwan Kim, Journal of Flexible and Printed Electronics 1 (1), 111-118 (2022). 

[2021] 

[71] Temperature and gate-bias-dependent charge transport in inkjet-printed polymer field-effect transistor, Jiyoul Lee*, Jaeman Jang, Jong Won Chung, Minho Yoon, Dae Hwan Kim, Journal of the Korean Physical Society Vol. 79, No. 11, 1063-1068 (2021). 

[70] Intrinsic device parameter extraction method for zinc oxide-based thin-film transistors, Minho Yoon, Jiyoul Lee*, Applied Physics Express Vol. 14, No. 12, 124003 (2021)

[69] Flexible memory device based on polymer ferroelectric with zinc oxide single-nanowire transistors for robust multilevel operation, Young Tea Chun, Jiyoul Lee*, Daping Chu*, Applied Physics Letters Vol. 119, No. 20, 203102 (2021).

[68] Surface Polarization Doping in Diketopyrrolopyrrole-Based Conjugated Copolymers Using Cross-Linkable Terpolymer Dielectric Layers Containing Fluorinated Functional Units, Yina Moon, Jong-Woon Ha, Minho Yoon, Do-Hoon Hwang, Jiyoul Lee *, ACS Applied Materials & Interfaces Vo. 13 No. 45, 54227-54236 (2021).

[67] Structure–property relationship of donor–acceptor type conjugated copolymers with thienoisoquinoline and benzothiadiazole units, Jong-Woon Ha, Yina Moon, Minho Yoon, Doyeon Kim, Do-Hoon Hwang, Jiyoul Lee*, Dyes and Pigments Vol. 195, 109728 (2021).

[66] Nano-patterning on multilayer MoS2 via block copolymer lithography for highly sensitive and responsive phototransistors, Heekyeong Park†, Jiyoul Lee†, Gyuchull Han†, AbdulAziz AlMutairi, Young-Hoon Kim, Jaichan Lee, Young-Min Kim, Young Jun Kim, Youngki Yoon*, Sunkook Kim*, Communications Materials Vol. 2, No. 1, 1-9 (2021). [†] contributed equally to this work.

[65] Improved charge transport and trap-state distribution in donor–acceptor-type semiconducting copolymer with a fluoropolymer dielectric film, Minho Yoon, Doyeon Kim, Jiyoul Lee *, Current Applied Physics Vol. 29, 72-77 (2021).

[64] Charge transfer doping with an organic layer to achieve a high-performance p-type WSe 2 transistor, Minho Yoon, Jiyoul Lee *, Journal of Materials Chemistry C Vol. 9, No. 30, 9592-9598 (2021).

[2020] 

[62] Physical modeling of charge transport in conjugated polymer field-effect transistors, Jiyoul Lee*, Journal of Physics D: Applied Physics Vol. 54, No. 14, 143002 (2021).

[63] Perfluoroalkylated alternating copolymer possessing solubility in fluorous liquids and imaging capabilities under high energy radiation, Hyun-Taek Oh, Seok-Heon Jung, Kang-Hyun Kim, Yina Moon, Do Hyeon Jeong, Yejin Ku, Sangsul Lee, Byeong-Gyu Park, Jiyoul Lee, Chawon Koh, Tsunehiro Nishi, Hyun-Woo Kim, Jin-Kyun Lee*, RSC Advances 11 (3), 1517-1523  (2020).

[61] In-Depth Investigation of the Correlation between Organic Semiconductor Orientation and Energy-Level Alignment Using In Situ Photoelectron Spectroscopy, Dong-Jin Yun, Youngjun Yun, Jiyoul Lee, Joo-Young Kim, JaeGwan Chung, Seong Heon Kim, Yong-Su Kim, Sung Heo, Jeong-Il Park, Ki-Hong Kim, Young-Nam Kwon, and Jong Won Chung*, ACS Applied Materials & Interfaces, Vol. 12, No. 45, 50628 (2020).

[60] Flexible Electronic Systems on Plastic Substrates and Textiles for Smart Wearable Technologies, Kang-Jun Baeg, Jiyoul Lee*, Advanced Materials Technologies,  Vol. 5, 2000071 (2020).

[2019] 

[59] Density-of-States Based Physical Model for Ink-jet Printed Thiophene Polymeric TFTs, Jiyoul Lee, Jun Tae Jang, Jaeman Jang, Jaehyeong Kim, Jong Won Chung, Sung-Jin Choi, Dong Myong Kim, Kyung Rok Kim* and Dae Hwan Kim*, IEEE Transactions on Electron Devices Vol. 67, No. 1, 283 (2020).

[58] Screen-Printed Silver Electrodes for Enhanced Performance in Light-Emitting Devices Based on Electrochemiluminescence, Hyeonseok Lee, Jong Ik Lee, Hee-Jin Park, Su-Yong Nam, Moon Sung Kang, Young Tea Chun* and Jiyoul Lee*, ECS J. Solid State Sci. Technol. Vol. 8, No. 11, R146 (2019).

[2018] 

[57] A 2D ferromagnetic semiconductor in monolayer Cr-trihalide and its Janus structures, Mohammed Moaied, Jiyoul Lee and Jisang Hong*, Physical Chemistry Chemical Physics, Vol. 20, No. 33, 21755 (2018).

[56] Shellac Films as a Natural Dielectric Layer for Enhanced Electron Transport in Polymer Field-Effect Transistors, Seung Woon Baek, Jong-Woon Ha, Minho Yoon, Do-Hoon Hwang* and Jiyoul Lee*, ACS Applied Materials & Interfaces, Vol. 10, No. 22, 18948 (2018).

[55] Simultaneous Enhancement of Charge Density and Molecular Stacking Order of Polymer Semiconductors by Viologen Dopants for High Performance Organic Field-Effect Transistors, Dong-Hyeon Lee, Minji Kang, Dae-Hee Lim, Yunseul Kim, Jiyoul Lee, Dong-Yu Kim, Kang-Jun Baeg*, Journal of Material Chemistry C, Vol 6, No 20, 5497 (2018).

[54] Influence of acceptor units with the trifluoromethyl group on charge transport in donor-acceptor semiconducting copolymer films, Chang-Hui Jin, Sella Kurnia Putri, Dong Wook Chang, Jiyoul Lee*, Journal of Imaging Science and Technology  Vol. 62 No. 4, 040404 (2018).

[2017] 

[53] Interstitial Mo-Assisted Photovoltaic Effect in Multilayer MoSe2 Phototransistors, Sunkook Kim†, Jesse Maassen†, Jiyoul Lee†, Seung Min Kim†, Gyuchull Han, Junyeon Kwon, Seongin Hong, Jozeph Park, Inturu Omkaram, Jong-Soo Rhyee, Young Ki Hong*, and Youngki Yoon*, Advanced Materials, Vol 30, No 12, 1705542 (2018).   [†] S.K., J.M., J.L. and S.M.K. contributed equally to this work.

[52] Solvent-dependent performance of solution-processed small-molecule organic field-effect transistors, Jin-Ho Lee, Sunkook Kim, Haekyoung Kim, Jiyoul Lee*, Organic Electronics Vol 52, 184 (2018).

[51] Effect of Donor Building Blocks on the Charge Transfer Characteristics of Diketopyrrolopyrrole-Based Donor–Acceptor-Type Semiconducting Copolymers, Gyu Bok Yoon, Ho-Young Kwon, Seok-Heon Jung, Jin-Kyun Lee, Jiyoul Lee*, ACS Applied Materials & Interfaces  Vol. 9 No 45, 39502 (2017).

[50] Thiophene-thiazole based Semiconducting Copolymers for High Performance Polymer Field-effect Transistors, Jong Won Chung, Won-Tae Park, Jeong-Il Park, Youngjun Yun, Xiaodan Gu, Jiyoul Lee*, Yong-Young Noh*, ACS Applied Materials & Interfaces Vol. 9 No 44, 38728 (2017).

[2016] 

[49] Influence of Dielectric Layers on Charge Transport through Diketopyrrolopyrrole-Containing Polymer Films: Dielectric Polarizability vs. Capacitance, Jiyoul Lee*, Jong Won Chung, Gyubok Yoon, Moo Hyung Lee, Do Hwan Kim, Jozeph Park, Jin-Kyun Lee, and Moon Sung Kang*, ACS Applied Materials & Interfaces Vol. 8 No 44, 30344 (2016).

[48] Dielectric Interface-dependent Spatial Charge Distribution in Ambipolar Polymer Semiconductors Embedded in Dual-gate Field-effect Transistors, Jiyoul Lee*, W. S. Christian Roelofs, Rene A. J. Janssen, Gerwin H. Gelinck, Applied Physics Letter Vol. 109, 043301 (2016).

[47] Extraction of High Charge Density of States in Electrolyte-Gated Polymer Thin-Film Transistor with Temperature-Dependent Measurements, Jiyoul Lee­*, Applied Physics Letter Vol. 108, 203302 (2016).

[46] Asymmetric Split-gate Ambipolar Transistor and its Circuit Application to Complementary Inverter, Hocheon Yoo, Edsger C. P. Smits, Albert J. J. M. van Breemen, Jan-Laurens P. J. van der Steen, Fabrizio Torricelli, Matteo Ghittorelli, Jiyoul Lee*, Gerwin H. Gelinck*, Jae-Joon Kim*, Advanced Materials Technologies  Vol. 1, 1600044 (2016).

[45] Pulse-modulated multilevel data storage in organic ferroelectric resistive memory diode, Jiyoul Lee­*, Albert J.J.M. van Breemen, Vsevolod Khikhlovskyi, Martijn Kemerink, Rene A.J. Janssen, Gerwin H. Gelinck*, Scientific Reports 6, 24407; doi: 10.1038/srep24407 (2016).

[44] Uniform percolation of inkjet-printed polymer-semiconductor-wrapped carbon nanotube networks by blending with insulating polymer, Jiyoul Lee­*, Synthetic Metals Vol 217, 57 (2016).

 [2015]

[43] Device performance and density of trap states of organic and inorganic field-effect transistors, Roger Hausermann*, Kristin Willa, Balthasar Blülle, Tobias Morf, Antonio Facchetti, Zhihua Chen, Jiyoul Lee, Bertram Batlogg, Organic Electronics Vol 28, 306-313 (2016).

[42] Dibenzothiopheno[6,5-b:6′,5′-f]thieno[3,2-b]thiophene (DBTTT): High-Performance Small-Molecule Organic Semiconductor for Field-Effect Transistors, Jeong-Il Park*, Jong Won Chung, Joo-Young Kim, Jiyoul Lee, Ji Young Jung, Bonwon Koo, Bang-Lin Lee, Soon W. Lee, Yong Wan Jin, and Sang Yoon Lee, J. Am. Chem. Soc.; (Comm.) Vol, 137 No. 38, 12175 (2015).

[41] Thin Films of Highly Planar Semiconductor Polymers Exhibiting Band-like Transport at Room Temperature, Jiyoul Lee*, Jong Won Chung, Do Hwan Kim, Bang-Lin Lee, Jeong-Il Park, Sangyoon Lee, Roger Häusermann, Bertram Batlogg, Sang-Soo Lee, Insil Choi, IlWon Kim, Moon Sung Kang*, J. Am. Chem. Soc.; (Comm.) Vol, 137 No. 25, 7990 (2015).

Before PKNU

[2014]

[40] Flexible Nano-Hybrid Inverter Based on Inkjet-printed Organic and 2D Multilayer MoS2 Thin Film Transistor, Jong Won Chung†, Yeong Hwan Ko†, Yeonsung Lee, Junyeon Kwon, Hoyoung Tang, Jiyoul Lee, Min hyung Lee, Bang-lin Lee, Yongwan Jin, Sangyoon Lee, Jae su Yu, Jongsun Park*, and Sunkook Kim*, Organic Electronics, Vol. 15 No 11, 3038 (2014). [†] J.W.C and Y.H.K. contributed equally to this work.

[39] Rendering high charge density of states in ionic liquid gated MoS2 transistors, Yeonsung Lee†, Jiyoul Lee†, Sunkook Kim*, Ho Seok Park*, Journal of Physical Chemistry C Vol. 118  No 31, 18278 (2014). [†] Y. L., and J.L. contributed equally to this work.

[38] Discontinuous pn-Heterojunction for OTFTs, Boeun Cho, Seong Hun Yu, Minwoo Kim, Moo Hyung Lee, Wansoo Huh, Jiyoul Lee, Jungwook Kim, Jeong Ho Cho, Jun Young Lee, Young Jae Song*, Moon Sung Kang*, Journal of Physical Chemistry C Vol. 118  No 31, 18146 (2014).

[37] Dynamic characterization of green-sensitive organic photodetectors using non-fullerene small molecules: Frequency response based on the molecular structure, Kwang-Hee Lee, Gae-Hwang Lee, Dong-Seok Leem, Jiyoul Lee, Jong Won Chung, Xavier Bulliard, Hyeonho Choi, Kyung-Bae Park, Kyu-Sik Kim, Yong Wan Jin*, Sangyoon Lee, and Soo Young Park* Journal of Physical Chemistry C Vol. 118  No 25, 13424 (2014).

[36] Ionic Self-Assembled Monolayer for Low Contact Resistance in Inkjet-Printed Coplanar Structure Organic Thin-Film Transistors, Jiyoul Lee, Joon Seok Park, Bang-Lin Lee, Jong Won Chung*, Sangyoon Lee, Organic Electronics, Vol. 15 No 9, 2021 (2014).

[35] Physical Origins and Analysis of Negative-Bias Stress Instability Mechanism in Polymer-Based Thin Film Transistors, Jaewook Lee, Jaeman Jang, Hyeongjung Kim, Jiyoul Lee, Bang-Lin Lee, Sung-Jin Choi, Dong Myong Kim, Dae Hwan Kim, and Kyung Rok Kim*, IEEE Electron Device Letters, Vol 35 No 3, 396 (2014).

[2013]

[34] Fully Transfer Characteristic-based Technique for Surface Potential and Subgap Density-of-States in p-Channel Polymer-based TFTs, Jaewook Lee, Sungwoo Jun, Jaeman Jang, Hagyoul Bae, Hyeongjung Kim, Jong Won Chung, Sung-Jin Choi, Dae Hwan Kim, Jiyoul Lee*, and Dong Myong Kim*, IEEE Electron Device Letters Vol. 34 No. 12, 1521 (2013).

[33] Reduction and Transition in thermal activation for charge transport through electrolyte-gated polythiophene thin films with high hole density, Jiyoul Lee, Boeun Cho, Jong Won Chung, and Moon Sung Kang*, Applied Physics Letter Vol. 103, 163302 (2013).

[32] Reliable and uniform thin-film transistor arrays based on inkjet-printed polymer semiconductors for full color reflective displays, Jiyoul Lee†, Do Hwan Kim†, Joo-Young Kim, Byungwook Yoo, Jeong-Il Park, Jong Won Chung, Bang-Lin Lee, Ji Young Jung, Joon Seok Park, Bonwon Koo, Seongil Im*, Jung Woo Kim, Byunggun Song, Myung Hoon Jung, Jae Eun Jang, Yong Wan Jin, and Sang Yoon Lee*, Advanced Materials Vol. 25 No. 41, 5886 (2013). [†] J.L. and D.H.K. contributed equally to this work.

[31] Quantum confinement-induced tunable exciton states in graphene oxide, Dongwook Lee*, Jiwon Seo, Xi Zhu, Jiyoul Lee, Hyeon-Jin Shin, Jacqueline M. Cole, Taeho Shin, Jaichan Lee, Hangil Lee and Haibin Su, Scientific Reports Vol. 3, Article number: 2250 (2013).

[30] Comment on "Investigation of the device instability feature caused by electron trapping in pentacene field-effect transistors" [Appl. Phys. Lett. 100, 063306 (2012)], Jiyoul Lee*, Applied Physics Letter, Vol.103, 036101 (2013).

[29] Influence of alkyl side-chain on the crystallinity and trap density of states in thiophene and thiazole semiconducting copolymer based inkjet-printed field-effect transistors, Jiyoul Lee†, Jong Won Chung†, Jaeman Jang, Do Hwan Kim, Jeong-Il Park, Bang-Lin Lee*, Joo-Young Kim, Ji Young Jung, Joon Seok Park, Bonwon Koo, Yong Wan Jin, Dae Hwan Kim*, Chemistry of Materials, Vol. 25, 1927 (2013) [†] J.L. and J.W.C. contributed equally to this work.

[2012]

[28] High-Mobility, Low-Power Thin-Film Transistors Based on Multilayer MoS2 Crystals, Sunkook Kim, Aniruddha Konar, Wan-Sik Hwang, Jong Hak Lee, Jiyoul Lee, Jaehyun Yang, Changhoon Jung, Hyoungsub Kim, Ji-Beom Yoo, Jae-Young Choi, Yong Wan Jin, Sang Yoon Lee, Debdeep Jena*, Woong Choi* and Kinam Kim, Nature Communication Vol. 3, 1011 (2012).

[27] Extracting the sub-bandgap density-of-states in polymer thin-film transistors with the multi-frequency capacitance-voltage spectroscopy, Jaeman Jang, Jaehyeong Kim, Minkyung Bae, Dong Myong Kim, Dae Hwan Kim*, Jiyoul Lee*, Bang-Lin Lee, Bonwon Koo, and Yong Wan Jin, Applied Physics Letter Vol. 100, 133506 (2012).

[26] Enhanced Electrical Stability of Organic Thin-film Transistors with Polymer Semiconductor – Insulator Blended Active Layers, Jiyoul Lee, Ji Young Jung, Do Hwan Kim, Joo-Young Kim, Bang-Lin Lee, Jeong-Il Park, Jong Won Chung, Joon Seok Park, Bonwon Koo, Yong Wan Jin*, and Sangyoon Lee, Applied Physics Letter Vol. 100, 083302 (2012).

[25] Photoexcited charge collection spectroscopy of two-dimensional polaronic states in polymer thin-film transistors, Jiyoul Lee*, Bang-Lin Lee, Jae H. Kim, Sangyoon Lee, and Seongil Im*, Physical Review B Vol. 85, No. 4, 045206 (2012).

[24] Design of a Polymer–Carbon Nanohybrid Junction by Interface Modeling for Efficient Printed Transistors, Do Hwan Kim, Hyeon-Jin Shin, Hyo Sug Lee, Jiyoul Lee, Bang-Lin Lee, Wi Hyoung Lee, Jong-Hwa Lee, Kilwon Cho, Woo Jae Kim*, Sang Yoon Lee*, Jae-Young Choi*, and Jong Min Kim, ACS Nano Vol. 6 No. 1, 662, (2012).

[2011]

[23] Characterization of bias stress induced electrical instability in liquid-crystalline semiconducting polymer thin-film transistors, Jiyoul Lee, Do Hwan Kim, Bang-Lin Lee, Jeong-Il Park, Byungwook Yoo, Hyunsik Moon, Bonwon Koo, Yong Wan Jin, Sangyoon Lee*, Journal of Applied Physics Vol. 110 No. 8, 084511, (2011).

[22] Molecular Weight-Induced Structural Transition of Liquid-Crystalline Polymer Semiconductor for High-Stability Organic Transistor, Do Hwan Kim†, Jiyoul Lee†, Jeong-Il Park, Jong Won Chung, Wi Hyoung Lee, Gaurav Giri, Byungwook Yoo, Bonwon Koo, Joo Young Kim, Yong Wan Jin, Kilwon Cho, Bang-Lin Lee*, and Sangyoon Lee*, Advanced Functional Materials Vol. 21 No. 23, 4442, (2011) [†] D.H.K. and J.L. contributed equally to this work.

[21] The Influence of In/Zn ratio on the Performance and Negative Bias Instability of Hf-In-Zn-O Thin Film Transistors under Illumination, Hyun-Suk Kim, Joon Seok Park, Wan-Joo Maeng, Kyoung Seok Son, Tae Sang Kim, Myungkwan Ryu, Jiyoul Lee, Jae Cheol Lee, Gunwoo Ko, Seongil Im, and Sang Yoon Lee, IEEE Electron Device Letters, Vol. 32 No. 9, 1251, (2011).

[2010]

[20] The influence of sputtering power and O2/Ar flow ratio on the performance and stability of Hf–In–Zn–O thin film transistors under illumination, Hyun-Suk Kim, Kyung-Bae Park, Kyoung Seok Son, Joon Seok Park, Wan-Joo Maeng, Tae Sang Kim, Kwang-Hee Lee, Eok Su Kim, Jiyoul Lee, Joonki Suh, Jong-Baek Seon, Myung Kwan Ryu, Sang Yoon Lee*, Kimoon Lee, and Seongil Im, Applied Physics Letter, Vol 97, 102103 (2010).

[2009]

[19] High Carrier Densities Achieved at Low Voltages in Ambipolar PbSe Nanocrystal Thin-Film Transistors, Moon Sung Kang, Jiyoul Lee, David J Norris* and, C. Daniel Frisbie*, Nano Letters, Vol, 9 No. 11, 3848, (2009).

[18] Ion Gel Gated Polymer Thin Film Transistors: Operating Mechanism and Characterization of Gate Dielectric Capacitance, Switching Speed, and Stability, Jiyoul Lee, Loren G. Kaake, Jeong Ho Cho, Xiaoyang Zhu, Timothy P. Lodge, C. Daniel Frisbie*, Journal of Physical Chemistry C, Vol, 113 No. 20, 8972, (2009).

[17] Comparison of the Mobility-Carrier Density Relation in Polymer and Single-Crystal Organic Transistors Employing Vacuum and Liquid Gate Dielectrics, Yu Xia, Jeong Ho Cho, Jiyoul Lee, P. Paul Ruden, C. Daniel Frisbie*, Advanced Materials, Vol, 21 No, 21, 2174 (2009).

[2008]

[16] Printable Ion Gel Gate Dielectrics for Low Voltage Polymer Thin Film Transistors on Plastic, Jeong Ho Cho, Jiyoul Lee, Yu Xia, B.-S. Kim, Yiyong He, Timothy P. Lodge, C. Daniel Frisbie*, Nature Materials Vol. 7, 900, (2008).

[15] High Capacitance Ion Gel Gate Dielectrics with Faster Polarization Response Times for Organic Thin-Film Transistors, Jeong Ho Cho, Jiyoul Lee, Yiyong He, B.-S. Kim, Timothy P. Lodge, C. Daniel Frisbie*, Advanced. Materials Vol, 20, No. 4, 686, (2008).

[2007]

[14] Ion Gel Gated Polymer Thin-Film Transistors, Jiyoul Lee, Matthew J. Panzer, Yiyong He, Timothy P. Lodge, C. Daniel Frisbie*, J. Am. Chem. Soc.; (Comm.) Vol, 129 No. 15, 4532, (2007).

[13] Studies on Poly(methyl methacrylate) Dielectric Layer for Field Effect Transistor: Influence of Polymer Tacticity, Ji Hoon Park, D. K. Hwang, Jiyoul Lee, Seongil Im, and Eugene Kim*, Thin Solid Films Vol. 515, 4041 (2007).

[2006]

[12] A comparative Study of the Photoresponse from Tetracene-based and Pentacene-based Thin-film Transistors, Jeong-M. Choi, Jiyoul Lee, D. K. Hwang, Jae Hoon Kim, Seongil Im*, and Eugene Kim, Applied Physics Letters Vol. 88, 043508 (2006).

[11] Improving Resistance to Gate Bias Stress in Pentacene Thin-film Transistors with Optimally-cured Polymer Dielectric Layers, D. K. Hwang, Ji Hoon Park, Jiyoul Lee, Jeong-M. Choi, Jae Hoon Kim, Eugene Kim, and Seongil Im*, Journal of the Electrochemical Society Vol. 153, No. 1, G23 (2006).

[2005]

[10] Passivation effects on the stability of pentacene thin-film transistors with SnO2 prepared by ion-beam-assisted deposition, Woo Jin Kim, Won Hoe Koo, Sung Jin Jo, Chang Su Kim, Hong Koo Baik*, Jiyoul Lee, and Seongil Im, Journal of Vacuum Science and Technology B, Vol. 23, 2357 (2005).

[9] Enhancing the Ambient-Enduring Performance of Pentacene Thin-Film Transistors by SnO2-ncapsulation, Woo Jin Kim, Won Hoe Koo, Sung Jin Jo, Chang Su Kim, Hong Koo Baik, Jiyoul Lee, and Seongil Im*, Electrochemical and Solid-State Letters, Vol. 8, G341 (2005).

[8] Flexible semitransparent petnacene thin-film transistors with polymer dielectric layers and NiOx electrodes, Jiyoul Lee, D.K. Hwang, Jeong-M. Choi, Kimoon Lee, Jae Hoon Kim, Seongil Im*, Ji Hoon Park and Eugene Kim, Applied Physics Letters, Vol. 87, No. 2, 023504 (2005).

[7] Pentacene-Based TTFTs with Polymer Gate Dielectric and NiOx Electrodes, D. K. Hwang, Ji Hoon Park, Jiyoul Lee, Jeong-M. Choi, Jae Hoon Kim, Eugene Kim, and Seongil Im*, Electrochemical and Solid-State Letters, Vol. 8, G 140 (2005).

[2004]

[6] Threshold Voltage Change due to Organic-inorganic Interface in Pentacene Thin-film Transistors, Jiyoul Lee, J. H. Kim, Seongil Im*, and Duk-Young Jung, Journal of Applied Physics, Vol. 96, No. 4, 2301 (2004).

[5] Effects of Substrate Temperature on The Device Properties of Pentacene-based Thin-film Transistors Using Al2O3+x Gate Dielectric, Jiyoul Lee, Jae Hoon Kim, and Seongil Im*, Journal of Applied Physics, Vol. 95, No. 7, 3733 (2004).

[4] Correlation between Photoelectric and Optical Absorption Spectra of Thermally Evaporated Pentacene Films, Jiyoul Lee, S. S. Kim, Kibum Kim, Jae Hoon Kim, and Seongil Im*, Applied Physics Letters, Vol. 84, No. 10, 1701 (2004).

[2003]

[3] Pentacene Thin-film Transistors with Al2O3+x Gate Dielectric Films Deposited on Indium-tin-oxide Glass, Jiyoul Lee, Jae Hoon Kim and Seongil Im*, Applied Physics Letters, Vol. 83, No. 13, 2689 (2003).

[2] Optimum Channel Thickness in Pentacene-based Thin-film Transistors, Jiyoul Lee, Kibum Kim, Jae Hoon Kim, Seongil Im*, and Duk-Young Jung, Applied Physics Letters, Vol. 82, No. 23, 4169 (2003). 

[1] Electrical Properties of Aluminum Oxide Films Deposited on Indium-tin-oxide Glasses, Jiyoul Lee, S. S. Kim, and Seongil Im*, Journal of Vacuum Science and Technology B, Vol. 21, No. 3, 953 (2003).