STUDENTS

Education

Ph.D. Course in Materials Science and Chemical  Engineering  (2020.09 -2024.01)

Hanyang University, Ansan, Korea

Research advisor : Professor Ji-Hoon Ahn

M. S. in Electronic Materials Science and Engineering​ (2018. 03 - 2020. 02)

Korea Maritime & Ocean University, Busan, Korea

Research advisor : Professor Ji-Hoon Ahn

B. S. in Electronic Materials Science and Engineering​ (2013. 03 - 2018. 02)

Korea Maritime & Ocean University, Busan, Korea

Publications

19. "Pulse program for improving learning accuracy and reducing programming energy consumption of ferroelectric synaptic transistor"

Current Applied Physics, 67 93-100 (2024).  

Jae Yeob Lee, Cheol Jun Kim, Minkyung Ku, Tae Hoon Kim, Taehee Noh, Seung Won Lee, Yoonchul Shin, Ji-Hoon Ahn, Bo Soo Kang   

18. "Optimization method for conductance modulation in ferroelectric transistor for a neuromorphic computing" 

Advanced Electronic Materials, 10(5) 2300698 (2024).  

Cheol Jun Kim, Jae Yeob Lee, Minkyung Ku, Tae Hoon Kim, Taehee Noh, Seung Won Lee,  Ji-Hoon Ahn, Bo Soo Kang   

17. "Enhanced physical and electrical properties of HfO2 deposited by atomic layer deposition using a novel precursor with improved thermal stability" 

Surfaces & Interfaces, 42 Part B 103499 (2023).   

Seung Won Lee, Hyunchang Kim,  Ji-Hoon Ahn*   

16. "Implementation of rutile-TiO2 thin films on TiN without post-annealing through introduction of SnO2 and its improved electrical properties"

Surfaces & Interfaces, 42 Part A 103420 (2023).  

Min Ji Jeong, Seung Won Lee, Yoonchul Shin, Jeong-Hun Choi,  Ji-Hoon Ahn*   

15. "Yttrium doping effects on ferroelectricity and electric properties of as-deposited Hf1-xZrxO2 thin films via atomic layer deposition"

Nanomaterials, 13(15) 2187 (2023).   

Youkyoung Oh, Seung Won Lee, Jeong-Hun Choi, Seung-Eon Ahn, Hyo-Bae Kim*,  Ji-Hoon Ahn*   

14. "Microscale spectroscopic mapping of defect evolution in large-area growth of monolayer MoS2"

Applied Surface Science, 637, 157885 (2023).  

Taegeon Lee, Young-Gui Yoon*, Seung Won Lee,  Ji-Hoon Ahn, Heesuk Rho*  

13. "Enhanced dielectric and energy storage performances of Hf0.6Zr0.4O2 thin films by Al doping"

Ceramics International, 49(11), 18055-18060 (2023).  

Seung Won Lee†, Min Ji Jeong†, Youkyoung Oh, Hyo-Bae Kim, Tae-Eon Park,  Ji-Hoon Ahn*   

12. "Polarization switching dynamics simulation by using the practical distribution of ferroelectric properties"

Applied Physics Letters, 122, 012901 (2023).  

Cheol Jun Kim, Jae Yeob Lee, Minkyung Ku, Seung Won Lee,  Ji-Hoon Ahn, Bo Soo Kang   

11. "Effects of Zr content and annealing on ferroelectricity of as-grown crystalline Hf1-xZrxO2 thin films using Hf[Cp(NMe2)3] and Zr[Cp(NMe2)3] precursors via atomic layer deposition"

Ceramics International, 48(17), 25661-25665 (2022).  

Youkyoung Oh, Hyo-Bae Kim,  Seung Won Lee, Min Ji Jeong, Tae Joo Park*,  Ji-Hoon Ahn* 

10. "Equivalent oxide thickness scalability of Zr-rich ZrHfO2 thin films by Al-doping"

Materials Letters,  321, 132418 (2022).  

Min Ji Jeong, Seung Won Lee, Hyo-Bae Kim, Youkyoung Oh, Ju Hun Lee*, Ji-Hoon Ahn* 

9. "A simple strategy to realize super stable ferroelectric capacitor via interface engineering"

Advanced Materials Interfaces, 9(15), 2102528 (2022).  

Hyo-Bae Kim, Kyun Seong Dae, Youkyoung Oh, Seung-Won Lee, Yoseop Lee, Seung-Eon Ahn, Jae Hyuck Jang*, Ji-Hoon Ahn* 

8. "Superior and stable ferroelectric properties of hafnium-zirconium-oxide thin films deposited via atomic layer deposition using cyclopentadienyl-based precursors without annealing"

Nanoscale, 13, 8524-8531 (2021).  

Hyo-Bae Kim†, Moonyoung Jung†, Youkyoung Oh, Seung Won Lee, Dongseok Suh*, Ji-Hoon Ahn* 

7. "Atomic layer deposited strontium niobate thin films as new high-k dielectrics"

Materials Letters, 286, 129220 (2021).  

Seung Won Lee, Hyo-Bae Kim, Chang-Min Kim, Se-Hun Kwon*, Ji-Hoon Ahn* 

6. "Effects of plasma conditions on sulfurization of MoO3 thin films and surface evolution for formation of MoS2 at low temperature"

Applied Surface Science, 532, 147462 (2020).  

Jeong-Hun Choi, Seung Won Lee, Hyo-Bae Kim, Ji-Hoon Ahn*

5. "Improved electrical performance of a sol-gel IGZO transistor with high-k Al2O3 gate dielectric achieved by post annealing"

Nano Convergence, 6, 24, (2019).  

Esther Lee, Tae Hyeon Kim, Seung Won Lee, Jee Hoon Kim, Jaeun Kim, Tae Gun Jeong, Ji-Hoon Ahn, Byungjin Cho* 

4. "Modulation of crystal structure and electrical properties of Hf0.6Zr0.4O2 thin films by Al-doping"

Materials Letters, 252, 56-59 (2019).  

Seung Won Lee, Chang-Min Kim, Jeong-Hun Choi, Cheol-Min Hyun, Ji-Hoon Ahn*  

3. "Synthesis of Bi2Te3 single crystals with lateral size up to tens of micrometers by vapor transport and its potential for thermoelectric applications"

Crystal Growth & Design, 19(4), 2024-2029 (2019).

Cheol-Min Hyun, Jeong-Hun Choi, Seung Won Lee, Seung-Young Seo, Myoung-Jae Lee*, Se-Hun Kwon, Ji-Hoon Ahn*

2. "Low power switching characteristics of CNT field effect transistor device with Al-doped ZrHfO2 gate dielectric"

Journal of Nanomaterials, 2156895 (2018).  

Seyoung Oh†, Seung Won Lee†, Dongjun Kim, Jeong-Hun Choi, Hong-Chul Chae, Sung Mook Choi, Ji-Hoon Ahn*, Byungjin Cho* 

1. "Synthesis mechanism of MoS2 layered crystals by chemical vapor deposition using MoO3 and sulfur powders"

Journal of Alloys and Compounds, 756, 380-384 (2018).  

Cheol-Min Hyun, Jeong-Hun Choi, Seung Won Lee, Jeong Hwa Park, Kang Taek Lee, Ji-Hoon Ahn* 

Patent

3. "적층 구조의 유전막을 포함하는 커패시터 및 이의 제조 방법"

10-2023-0041136, Korea 

안지훈, 이승원  

2. "2차원 페로브스카이트 유전막을 형성한 반도체 장치와 그의 제조 방법" 

10-2019-0062261, Korea   

안지훈, 이승원

1. "탄소 소재를 이용한 유류흡착시트 및 그의 제조방법" 

10-2017-0021196, Korea 

안지훈, 김채은, 박진, 원종호, 이종섭, 이승원  

Conferences

11. "Conduction Mechanism of ZrO2-based Nano-laminates Structure for Suppressing the Leakage Current" - International

The  Korean International Semiconductor Conference on Manufacturing Technology (KISM 2022), Korea

Seung Won Lee, Min Ji Jeong, and Ji-Hoon Ahn 

10. "Improved Energy Storage Performance of the Al-doped ZrO2 with Anti-ferroelectricity for Electrostatic Capacitors" - International

The 7th International Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2022), Korea

Seung Won Lee, Youkyoung Oh, Min Ji Jeong and Ji-Hoon Ahn

9. "Enhanced the Physical and Electrical Properties of HfO2 Deposited by Atomic Layer Deposition Using Novel Precursor with Improved Thermal Stability" - International

The 20th International Symposium on the Physics of Semiconductors and Applications (ISPSA 2022), Korea  

 Seung Won Lee, Min Ji Jeong, Ji-Hoon Ahn 

8. "Development of hafnium new precursor with improved thermal stability and process for atomic layer deposition" - Domestic

The 29th Korean Conference in Semiconductors(KCS 2022), Korea 

Seung Won Lee, Min Ji Jeong, Ji-Hoon Ahn* 

7. "Enhanced Characteristics of HfO2 Deposited by Atomic Layer Deposition Using Novel Precursor with Improved Thermal Stability" - International

The 6th International Conference on Advanced Electromaterials (ICAE 2021), Korea  

Seung Won Lee, Min Ji Jeong, Ji-Hoon Ahn* 

6. "Selective Area Growth of WSe2 on SiO2 Surface between Patterned Graphene Layers" - Domestic

The 28th Korean Conference in Semiconductors (KCS 2021), Korea 

Seung Won Lee, Hyo-Bae Kim, Ji-Hoon Ahn* 

5. "2-Dimensional Perovskite Oxide Thin Films Deposited by Atomic Layer Deposition for High-k Application" - Domestic

Materials Research Society of Korea, spring and fall Conference 2020 (MRSK 2020), Korea [우수발표논문상 수상] 

Seung Won Lee, Jeong-Hun Choi, Hyo Bae Kim, Ji-Hoon Ahn* 

4. "2-Dimensional Perovskite Oxide Thin Films Deposited by Atomic Layer Deposition" - International

The 27th Korean Conference in Semiconductors (KCS 2020), Korea

Seung Won Lee, Hyo Bae Kim, Jeong-Hun Choi, Ji-Hoon Ahn* 

3. "2-dimensional perovskite oxide thin films deposited by ALD for high-k application" - International

The AVS 19th International Conference on Atomic Layer Deposition (ALD 2019),  USA

Seung-Won Lee, Chang-Min Kim, Se-Hun Kwon, Ji-Hoon Ahn* 

2. "Crystal structure and electrical properties modulation of Al-doped HfZrO2 thin films by ALD" - International

The AVS 18th International Conference on Atomic Layer Deposition (ALD 2018),  Korea 

Seung Won Lee, Ji-Hoon Ahn, Jeong-Hun Choi, Cheol-Min Hyun, Minho Ahn, Sanghun Jeon

1. "Crystal structure and electrical properties modulation of Al-doped HfZrO2 thin films by ALD" - Domestic

The 25th Korean Conference in Semiconductors (KCS 2018), Korea

Seung Won Lee, Jeong-Hun Choi, Cheol-Min Hyun, Minho Ahn, Sanghun Jeon, Ji-Hoon Ahn*