Publications

PAPERS: 

1. Yongwook Seok, Hanbyeol Jang, YiTaek Choi, Yeonghyeon Ko, Minje Kim, Heungsoon Im, Kenji Watanabe, Takashi Taniguchi, Jae Hun Seol, Sang-Soo Chee, Junghyo Nah, and Kayoung Lee*, "High-field transport and high saturation velocity in multilayer indium selenide transistors," ACS Nano 18, 8099 (2024).  link
   * Highlighted on the cover.
   * Covered by 20 media outlets including Yonhap News, Herald Business, Newsis, and ETNews.

2. Jungi Song#, Suyeon Lee#, Yongwook Seok, Yeonghyeon Ko, Hanbyeol Jang, Kenji Watanabe, Takashi Taniguchi, and Kayoung Lee*, "Drain-induced multifunctional ambipolar electronics based on junctionless MoS2," ACS Nano 18, 4320 (2024).  link
   # EQUAL CONTRIBUTION.
   * Covered by 29 media outlets, including ChosunBiz, Yonhap News, Donga Science, and UPI Korea.

3. Hanbyeol Jang, Yumin Song, Yongwook Seok, Heungsoon Im, Tae Hyung Kim, Joo-Hyoung Lee, Yong-Hoon Kim, and Kayoung Lee*, “Zero power infrared sensing in 2D/3D-assembled heterogeneous graphene/In/InSe/Au,” Nanoscale 14, 3004 (2022).  link

4. Sang-Hoo Cho, Hanbyeol Jang, Heungsoon Im, Donghyeon Lee, Je-Ho Lee, Kenji Watanabe, Takashi Taniguchi, Maeng-Je Seong, Byoung Hun Lee, and Kayoung Lee*, “Bias-controlled multi-functional transport properties of InSe/BP van der Waals heterostructures,” Scientific Reports 11, 7843  (2021).  link

5. Sanghyun Kim, Donghyeon Lee, Binbin Wang, Shangjie Yu, Kenji Watanabe, Takashi Taniguchi, Jonathan A. Fan, Jiamin Xue, and Kayoung Lee*, “Raman spectroscopic study of artificially twisted and non-twisted trilayer graphene,” Applied Physics Letters 118, 133101 (2021).  link

6. YiTaek Choi#, Yongwook Seok#, Hanbyeol Jang,  Arvind Kumar, Kenji Watanabe, Takashi Taniguchi, Xuan Gao, and Kayoung Lee*, “Multiterminal transport measurements of multilayer InSe encapsulated by hBN,” ACS Applied Electronic Materials 3, 163 (2021).  link
   # EQUAL CONTRIBUTION.

7. Hanbyeol Jang, Yongwook Seok, YiTaek Choi, Sang-Hoo Cho, Kenji Watanabe, Takashi Taniguchi, and Kayoung Lee*, “High performance near-infrared photodetectors based on surface-doped InSe,” Advanced Functional Materials 31, 2006788 (2021).  link
   * Highlighted in Hot Topic: Surfaces and Interfaces.

8. Sang-Soo Chee*, Hanbyeol Jang, Kayoung Lee, and Moon-Ho Ham*, “Substitutional fluorine doping of large-area molybdenum disulfide monolayer films for flexible inverter device arrays,” ACS Applied Materials and Interfaces 12, 31804 (2020).  link

9. Sang-Soo Chee, Joo-Hyoung Lee*, Kayoung Lee*, and Moon-Ho Ham*, “Defect-assisted contact property enhancement in a molybdenum disulfide monolayer,” ACS Applied Materials and Interfaces 12, 4129 (2020).  link

10. Sang-Soo Chee, Won-June Lee, Yong-Ryun Jo, Min Kyung Cho, DongWon Chun, Hionsuck Baik, Bong‐Joong Kim, Myung-Han Yoon*, Kayoung Lee*, and Moon-Ho Ham*, “Atomic vacancy control and elemental substitution in a monolayer molybdenum disulfide for high performance optoelectronic device arrays,” Advanced Functional Materials 30, 1908147 (2020).  link
    * Highlighted on the back cover.

11. Daehoon Park, Minje Kim, Sol Lee, Ick‐Jae Yoon, Kayoung Lee, Min Hyung Lee, and Junghyo Nah, “Light‐permeable air filter with self‐polarized nylon‐11 nanofibers for enhanced trapping of particulate matters,” Advanced Materials Interfaces 6,1801832 (2019).  link

12. Kayoung Lee*, En-Shao Liu, Takashi Taniguchi, Kenji Watanabe, and Junghyo Nah, “Interface states in bilayer graphene encapsulated by hexagonal boron nitride,” ACS Applied Materials and Interfaces 10, 40985 (2018).  link

13. Kayoung Lee*, Jeil Jung, Babak Fallahazad, and Emanuel Tutuc, “Transport spectroscopy in bilayer graphene using double layer heterostructures,” 2D Materials 4, 035018 (2017).  link

14. Kayoung Lee, Jiamin Xue, David C. Dillen, Kenji Watanabe, Takashi Taniguchi, and Emanuel Tutuc, “Giant frictional drag in double bilayer graphene heterostructures,” Phys. Rev. Lett. 117, 046803 (2016).  link
    * Selected as the Editor’s suggestion, and Featured on Physics.aps.org (news and commentary) 9, 80 (2016) “Viewpoint: Chasing the exciton condensate.” 

15. Raluca I. Gearba, Minjung Kim, Kory M. Mueller, Peter A. Veneman, Kayoung Lee, Bradley J. Holliday, Calvin K. Chan, James R. Chelikowsky, Emanuel Tutuc, and Keith J. Stevenson, “Atomically resolved elucidation of the electrochemical covalent molecular grafting mechanism of single layer graphene,” Advanced Materials Interfaces 3, 1600196 (2016).  link

16. Kyounghwan Kim, Stefano Larentis, Babak Fallahazad, Kayoung Lee, Jiamin Xue, David C. Dillen, Chris M. Corbet, and Emanuel Tutuc, “Band alignment in WSe2-graphene heterostructures,” ACS Nano 9, 4527 (2015).  link

17. Sangwoo Kang, Babak Fallahazad, Kayoung Lee, Hema C. P. Movva, Kyounghwan Kim, Chris M. Corbet, Takashi Taniguchi, Kenji Watanabe, Luigi Colombo, Leonard F. Register, Emanuel Tutuc, and Sanjay K. Banerjee, “Bilayer graphene-hexagonal boron nitride heterostructure negative differential resistance interlayer tunnel FET,” IEEE Electron Device Letters 36, 405 (2015).  link

18. Babak Fallahazad*, Kayoung Lee*, Sangwoo Kang*, Jiamin Xue, Stefano Larentis, Chris M. Corbet, Kyounghwan Kim, Hema C. P. Movva, Takashi Taniguchi, Kenji Watanabe, Leonard F. Register, Sanjay K. Banerjee, and Emanuel Tutuc, “Gate-tunable resonant tunneling in double bilayer graphene heterostructures,” Nano Letters 15, 428 (2015).   link
    * EQUAL CONTRIBUTION.

19. Kayoung Lee, Babak Fallahazad, Jiamin Xue, David C. Dillen, Kyounghwan Kim, Takashi Taniguchi, Kenji Watanabe, and Emanuel Tutuc, “Chemical potential and quantum Hall ferromagnetism in bilayer graphene,” Science 345, 58 (2014).  link
    * Highlighted on the cover of 2014 July 4th issue of Science, Featured on the Perspective Section in Science 345, 31 (2014) “Emergent complex states in bilayer graphene,” and Featured on UT Cockrell School of Engineering News Aug 18 (2014) “Bilayer graphene structure could lead to better transistors.”

20. Kayoung Lee, Babak Fallahazad, Hongki Min, and Emanuel Tutuc, “Transport gap in dual-gated graphene bilayers using oxides as dielectrics,” IEEE Transactions on Electron Devices 60, 103 (2013).  link

21. Babak Fallahazad, Yufeng Hao, Kayoung Lee, Seyoung Kim, Rodney S. Ruoff, and Emanuel Tutuc, “Quantum Hall effect in Bernal stacked and twisted bilayer graphene grown on Cu by chemical vapor deposition,” Phys. Rev. B 85, 201408 (2012).  link
    * Selected as Rapid Communication.

22. Babak Fallahazad, Kayoung Lee, Guoda Lian, Seyoung Kim, Domingo Ferrer, Luigi Colombo, and Emanuel Tutuc, “Scaling of Al2O3 dielectric for graphene field-effect transistors,” Appl. Phys. Lett. 100, 093112 (2012).  link
    * Selected as Editor’s picks of 2012.

23. Kayoung Lee, Seyoung Kim, Micha S. Point, T. E. Beechem, Taisuke Ohta, and Emanuel Tutuc, “Magnetotransport properties of quasi-free standing epitaxial graphene bilayer on SiC: evidence for Bernal stacking,” Nano Letters 11, 3624 (2011).  link

24. Seyoung Kim, Kayoung Lee, and Emanuel Tutuc, “Spin-polarized to valley-polarized transition in graphene bilayers at ν = 0 in high magnetic fields,” Phys. Rev. Lett. 107, 016803 (2011).  link

25. Kayoung Lee, Sangwook Lee, Dahl-Young Khang, and Taeyoon Lee, “Wrinkling evolution of a growing bubble: the wonders of petal-like patterns in amorphous silicon membranes,” Soft Matter 6, 3249 (2010).  link

26. W. J. Maeng, Gil Ho Gu, C. G. Park, Kayoung Lee, and Taeyoon Lee, and Hyungjun Kim, “HfO2/HfOxNy/HfO2 gate dielectric fabricated by in situ oxidation of plasma-enhanced atomic layer deposition HfN middle layer,” Journal of The Electrochemical Society 156, G109 (2009).  link

CONFERENCE/MEETING:

1. Jungi Song#, Suyeon Lee#, Yongwook Seok, Yeonghyeon Ko, Hanbyeol Jang, and Kayoung Lee, “Applications of ambipolar molybdenum disulfide with van der waals contacts,” MRS 2023, Nov. 26-Dec. 1, 2023, Boston, United States of America.
   # EQUAL CONTRIBUTION.

2. Yongwook Seok, Hanbyeol Jang, Heungsoon Im, Kenji Watanabe, Takashi Taniguchi, Junghyo Nah, and Kayoung Lee, “High drift velocity in multilayer indium selenide at high electric fields,” MRS 2023, Nov. 26-Dec. 1, 2023, Boston, United States of America.

3. Jungi Song#, Suyeon Lee#, Yongwook Seok, Yeonghyeon Ko, Hanbyeol Jang, and Kayoung Lee, “Ambipolar molybdenum disulfide nanosheet and its applications,” ICAE 2023, Oct. 31-Nov. 3, 2023, Jeju, South Korea.
   # EQUAL CONTRIBUTION.

4. Kayoung Lee, Heungsoon Im, Youngkyu Ko, Yongwook Seok, Hanbyeol Jang, “Black phosphorus homojunction multi-functional nanoelectronics,” ICAE 2023, Oct. 31-Nov. 3, 2023, Jeju, South Korea (INVITED).

5. Youngkyu Ko, Heungsoon Im, Hanbyeol Jang, Yongwook Seok, and Kayoung Lee, “Black phosphorus homojunction multi-functional transistors,” AEFM 2023, Jul. 10-12, 2023, Seoul, South Korea.

6. Yongwook Seok, Hanbyeol Jang, Heungsoon Im, and Kayoung Lee, “High-field saturation velocity in InSe nanosheet on hBN,” AEFM 2023, Jul. 10-12, 2023, Seoul, South Korea.

7. Kayoung Lee, Heungsoon Im, Youngkyu Ko, Yongwook Seok, and Hanbyeol Jang, “Black phosphorus homojunction multi-level transistors” 2023 KPS Spring Meeting, Apr. 19-21, 2023, Daejeon, South Korea (INVITED).

8. Hanbyeol Jang, Yongwook Seok, YiTaek Choi, Sang-Hoo Cho, Kenji Watanabe, Takashi Taniguchi, and Kayoung Lee, "Surface-doping-induced photodetection in InSe/graphene heterostructures," 2023 KCS, Feb. 13-15, 2023, Gangwon-do, South Korea.

9. Hanbyeol Jang, Yongwook Seok, YiTaek Choi, Sang-Hoo Cho, Kenji Watanabe, Takashi Taniguchi, and Kayoung Lee, "High-performance NIR photodetector based on AuCl3-doped InSe with vertical graphene contact," NCC 2023, Jan. 26-27, 2023, Gyeonggi-do, South Korea.

10. Kayoung Lee, “High-field electron transport in InSe and its applications,” The 9th Korean Symposium on Graphene and 2D Materials, Jul. 11-12, 2022, Pusan, South Korea (INVITED).

11. Yongwook Seok, Hanbyeol Jang, Heungsoon Im, and Kayoung Lee, “High mobility and saturation velocity in 2D InSe,” ICAMD 2021, Dec. 6-10, 2021, Jeju, South Korea (Best Poster Presentation Award granted).

12. Hanbyeol Jang, Yumin Song, Yongwook Seok, Heungsoon Im, Tae Hyung Kim, Joo-Hyoung Lee, Yong-Hoon Kim, and Kayoung Lee, “High-performance InSe self-powered infrared sensors with asymmetric contacts,” ICAMD 2021, Dec. 6-10, 2021, Jeju, South Korea.

13. Kayoung Lee, “Transport study of InSe and its applications,” ICAMD 2021, Dec. 6-10, 2021, Jeju, South Korea (INVITED).

14. Hanbyeol Jang, Yongwook Seok, Heungsoon Im, Joo-Hyoung Lee, and Kayoung Lee, “High-performance InSe self-powered infrared sensors with asymmetric contacts,” RPGR 2021, Oct. 10-14, 2021, Seoul, South Korea (Best Poster Presentation Award granted).

15. Yongwook Seok, Hanbyeol Jang, Heungsoon Im, and Kayoung Lee, “High-field electron transport and drift velocity saturation in 2D InSe,” RPGR 2021, Oct. 10-14, 2021, Seoul, South Korea.

16. Hanbyeol Jang, Yongwook Seok, YiTaek Choi, Sang-Hoo Cho, Kenji Watanabe, Takashi Taniguchi, and Kayoung Lee, “High performance infrared photodetectors based on InSe,” 2021 KPS Spring Meeting, Apr. 21-23, 2021, Virtual Conference (INVITED).

17. Shang-Jie Yu, John Andris Roberts, Qing Lin, Stephanie Bohaichuk, Yue Luo, YiTaek Choi, Po-Hsun Ho, Kayoung Lee, Abram L Falk, William L Wilson, Eric Pop, H-S Philip Wong, and Jonathan A Fan, “Highly confined plasmons in individual single-walled carbon nanotube nanoantennas,” CLEO: QELS_Fundamental Science, May 10-15, 2020, Washington, DC, U.S.A. 

18. Kayoung Lee, “Transport spectroscopy on bilayer graphene,” 2019 KPS Spring Meeting, Apr. 24–26, 2019, Daejeon, South Korea (INVITED).

19. Leonard F Register, G William Burg, Chris M Corbet, Babak Fallahazad, Sangwoo Kang, Kyounghwan Kim, Stefano Larentis, Kayoung Lee, Omar Mohammed, Xuehao Mou, Hema CP Movva, Nitin Prasad, Dharmendar Reddy, Amithraj Valsaraj, Xian Wu, Sanjay K Banerjee, Emanuel Tutuc, Nishtha Sharma, Qingxiao Wang, Moon Kim, Andrew Marshall, Jiamin Xue, Takashi Taniguchi, Kenji Watanabe, and Luigi Colombo, “Resonant interlayer tunneling in 2D van der Waals-materials-based channel-dielectric-channel systems and possible device and circuit applications,” 232nd ECS Meeting, Oct. 1-5, 2017, National Harbor, MD, USA (INVITED). 

20. Emanuel Tutuc, Babak Fallahazad, Sangwoo Kang, Kayoung Lee, Kyounghwan Kim, Hema C. P. Movva, X. Mou, Chris M. Corbet, Leonard F. Register, and Sanjay K. Banerjee, “Gate tunable resonant tunneling in graphene-based heterostructures and device applications,” 73rd Device Research Conference, Jun. 21-24, 2015, Columbus, OH, U.S.A   (INVITED). 

21. Kayoung Lee, Jiamin Xue, Takashi Taniguchi, Kenji Watanabe, and Emanuel Tutuc, “Colossal coulomb drag in double bilayer graphene heterostructures,” 2015 APS March Meeting, Mar. 2-6, 2015, San Antonio, TX, U.S.A.

22. Babak Fallahazad, Kayoung Lee, Sangwoo Kang, Jiamin Xue, Stefano Larentis, Chris M. Corbet, Kyounghwan Kim, Hema C. P. Movva, Takashi Taniguchi, Kenji Watanabe, Leonard F. Register, Sanjay K. Banerjee, and Emanuel Tutuc, “Resonant tunneling in double bilayer graphene heterostructures,” 2015 APS March Meeting, Mar. 2-6, 2015, San Antonio, TX, U.S.A.

23. Sangwoo Kang, Babak Fallahazad, Kayoung Lee, Hema C. P. Movva, Kyounghwan Kim, Chris M. Corbet, Takashi Taniguchi, Kenji Watanabe, Luigi Colombo, Leonard F. Register, Emanuel Tutuc, and Sanjay K. Banerjee, “Bilayer graphene-hexagonal boron nitride heterostructure negative differential resistance interlayer tunnel FETs,” 2015 APS March Meeting, Mar. 2-6, 2015, San Antonio, TX, U.S.A.

24. Kyounghwan Kim, Stefano Larentis, Babak Fallahazad, Kayoung Lee, Jiamin Xue, David C. Dillen, Chris M. Corbet, and Emanuel Tutuc, “Conduction and valence band offsets in WSe2-graphene heterostructures,” 2015 APS March Meeting, Mar. 2-6, 2015, San Antonio, TX, U.S.A.

25. Emanuel Tutuc, Kayoung Lee, Stefano Larentis, and Babak Fallahazad, “Electron interaction and tunnelling in graphene-based heterostructures,” 32nd International Conference on the Physics of Semiconductures, Aug. 10-15, 2014, Austin, TX, U.S.A   (INVITED).

26. Kayoung Lee, Stefano Larentis, Babak Fallahazad, Jiamin Xue, and Emanuel Tutuc, “Electron interaction and tunnelling in graphene-based heterostructures,” 4th Edition of Graphene Conference, May 6-9, 2014, Toulouse, France   (INVITED).

27. Kayoung Lee, Babak Fallahazad, Jiamin Xue, Takashi Taniguchi, Kenji Watanabe, and Emanuel Tutuc, “Mapping the chemical potential in bilayer graphene using double bilayer heterostructures,” 2014 APS March Meeting, Mar. 3-7, 2014, Denver, CO, U.S.A.

28. Emanuel Tutuc, Seyoung Kim, Kayoung Lee, Babak Fallahazad, Kyounghwan Kim, and Jiamin Xue, “Electron transport and tunneling field-effect transistors in graphene-based heterostructures,” International Semiconductor Device Research Symposium, Dec. 11-13, 2013, Bethesda, MD, U.S.A   (INVITED).

29. Kayoung Lee, Kyounghwan Kim, Babak Fallahazad, Stefano Larentis, Micha S. Point, and Emanuel Tutuc, “Graphene-based vertical heterostructures and tunneling field effect transistors,” AVS 60th Symposium, Oct. 27-Nov. 1, 2013, Long Beach, CA, U.S.A   (INVITED).

30. Babak Fallahazad, Yufeng Hao, Kayoung Lee, Seyoung Kim, Rodney S. Ruoff, and Emanuel Tutuc, “Quantum Hall effect in graphene bilayers grown on copper by chemical vapor deposition,” 2012 APS March Meeting, Feb. 27-Mar. 2, 2012, Boston, MA, U.S.A.

31. Kayoung Lee, Seyoung Kim, Babak Fallahazad, and Emanuel Tutuc, “Electrical characteristics of graphene A-B bilayers investigated using dual-gated device structures,” TECHCON 2011, Sept. 12-13, 2011, Austin, TX, U.S.A.

32. Babak Fallahazad, Kayoung Lee, Seyoung Kim, Chris M. Corbet, Sanjay K. Banerjee, and Emanuel Tutuc, “Gate capacitance scaling and graphene field-effect transistors with ultra-thin top-gate dielectrics,” 69th Device Research Conference, Jun. 20-22, 2011, Santa Barbara, CA, U.S.A.

33. Emanuel Tutuc, Babak Fallahazad, Seyoung Kim, Kayoung Lee, Michael Ramon, Sanjay K. Banerjee, and Luigi Colombo, “Dielectric deposition and electron transport in graphene devices with high-k dielectrics,” 219th ECS Meeting, May 1-6, 2011, Montreal, QC, Canada.

34. Kayoung Lee, Seyoung Kim, Babak Fallahazad, and Emanuel Tutuc, “Electric field induced transition between spin to valley polarized ν = 0 quantum Hall state in dual-gated graphene bilayers,” 2011 APS March Meeting, Mar. 21-25, 2011, Dallas, TX, U.S.A.

35. Sangwook Lee, Kayoung Lee, and Taeyoon Lee, “Self-assembled corrugated high performance photovoltaic devices in amorphous Si layers on flexible substrates,” 2008 IEEK (The Institute of Electronics Engineers of Korea) Fall General Conference, Nov. 29, 2008, Seoul, South Korea.