STUDENTS
STUDENTS
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Jeong-Hun Choi
Jeong-Hun Choi
Research Area : 2D ALD, 2D-based devices
Office : Engineering Building 5, RM #330
E-Mail : wkdqhrh77@gmail.com
Birth date : 1991. 02. 10
Education
Education
Ph.D. Course in Materials Science and Chemical Engineering (2020.03 -)
Ph.D. Course in Materials Science and Chemical Engineering (2020.03 -)
Hanyang University, Ansan, Korea
Research advisor : Professor Ji-Hoon Ahn
M. S. in Electronic Materials Science and Engineering (2017. 03 - 2019. 02)
Korea Maritime & Ocean University, Busan, Korea
Research advisor : Professor Ji-Hoon Ahn
B. S. in Electronic Materials Science and Engineering (2013. 09 - 2017. 02)
Korea Maritime & Ocean University, Busan, Korea
Publications
Publications
15. “Yttrium doping effects on ferroelectricity and electric properties of as-deposited Hf1-xZrxO2 thin films via atomic layer deposition"
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. “Low-temperature growth of 2D-MoS2 thin films by plasma-enhanced atomic layer deposition using a new molybdenum precursor and applicability to gas sensors"
14. “Low-temperature growth of 2D-MoS2 thin films by plasma-enhanced atomic layer deposition using a new molybdenum precursor and applicability to gas sensors"
ACS Applied Nano Materials, 6(13) 12132-12139 (2023).
Jeong-Hun Choi, Min-Ji Ha, Dong Geun Kim, Ji-Min Lee, Ji-Hoon Ahn*
13. “Phase control of two-dimensional tin sulfide compounds deposited via atomic layer deposition"
13. “Phase control of two-dimensional tin sulfide compounds deposited via atomic layer deposition"
Applied Surface Science, 612, 155887 (2023).
Dong Geun Kim, Ji-Min Lee, Jeong-Hun Choi*, Ji-Hoon Ahn*
12. “Ultralow-resistivity molybdenum-carbide thin films deposited by plasma-enhanced atomic layer deposition using a cyclopentadienyl-based precursor"
12. “Ultralow-resistivity molybdenum-carbide thin films deposited by plasma-enhanced atomic layer deposition using a cyclopentadienyl-based precursor"
Chemistry of Materials, 34(6), 2576-2584 (2022).
Min-Ji Ha, Hyunchang Kim, Jeong-Hun Choi, Miso Kim, Woo-Hee Kim, Tae Joo Park, Bonggeun Shong*, Ji-Hoon Ahn*
11. “Unveiling the origin of two distinct routes of interlayer charge transfer doping in Bi2Te3/MoS2/SiO2 heterostructure"
11. “Unveiling the origin of two distinct routes of interlayer charge transfer doping in Bi2Te3/MoS2/SiO2 heterostructure"
Applied Surface Sciences, 579, 152208 (2022).
Taegeon Lee, Jeong-Hun Choi, Ji-Hoon Ahn, Young-Gui Yoon*, Heesuk Rho*
10. “A strategy for wafer-scale crystalline MoS2 thin films with controlled morphology using pulsed metal-organic chemical vapor deposition at low temperature"
10. “A strategy for wafer-scale crystalline MoS2 thin films with controlled morphology using pulsed metal-organic chemical vapor deposition at low temperature"
Advanced Materials Interfaces, 9(4) 2101785 (2022).
Jeong-Hun Choi, Min-Ji Ha, Jae Chan Park, Tae Joo Park, Woo-Hee Kim, Myoung-Jae Lee, Ji-Hoon Ahn*
9. “Tunable atomic level surface functionalization of a multi-layered graphene oxide membrane to break the permeability-selectivity trade-off in salt removal of brackish water"
9. “Tunable atomic level surface functionalization of a multi-layered graphene oxide membrane to break the permeability-selectivity trade-off in salt removal of brackish water"
Separation and Purification Technology, 274, 119047 (2021).
Tae-Nam Kim, Jieun Lee, Jeong-Hun Choi, Ji-Hoon Ahn*, Euntae Yang, Moon-Hyun Hwang, Kyu-Jung Chae*
8. “Effects of plasma conditions on sulfurization of MoO3 thin films and surface evolution for formation of MoS2 at low temperature"
8. “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*
7. “Modulation of crystal structure and electrical properties of Hf0.6Zr0.4O2 thin films by Al-doping"
Materials Letters, 252, 56-59 (2019).
Cheol-Min Hyun, Jeong-Hun Choi, Seung Won Lee, Seung-Young Seo, Myoung-Jae Lee*, Se-Hun Kwon, Ji-Hoon Ahn*
6. “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*
5. “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*
4. “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*
3. "A hybrid gate dielectrics of ion gel dielectrics with ultra-thin passivation layer for high-performance transistor based on two-dimensional semiconductor channels"
Scientific Reports, 7, 14194 (2017).
Hyunjin Jo†, Jeong-Hun Choi†, Cheol-Min Hyun†, Seung-Young Seo, Da Young Kim, Chang-Min Kim, Myoung-Jae Lee, Jung-Dae Kwon, Hyoung-Seok Moon, Se-Hun Kwon*, Ji-Hoon Ahn*
2. “Thermoelectric elastomer fabricated using CNT and nonconducting polymer"
Japanese Journal of Applied Physics, 56(9), 095101 (2017).
Jeong-Hun Choi†, Cheol-Min Hyun†, Hyunjin Jo, Ji Hee Son, Ji Eun Lee, Ji-Hoon Ahn*“
1. “Photo-thermoelectric properties of SnS nanocrystal with orthorhombic layered structure"
Applied Physics Letters, 111(1), 103104 (2017).
Cheol-Min Hyun†, Jeong-Hun Choi†, Myoung Jae Lee, Ji-Hoon Ahn*
Patent
Patent
2. "이차원 반도체 박막 형성 방법"
2. "이차원 반도체 박막 형성 방법"
10-2020-0147244
안지훈, 최정훈
1. “초박막 절연물질층을 포함하는 전기이중층 하이브리드 커패시터, 이를 적용한 트랜지스터 소자 및 이들의 제조 방법”
10-2017-0101051
안지훈, 조현진, 최정훈, 현철민
Conferences
Conferences
13. “Low-temperature growth of 2D-MoS2 thin films by plasma-enhanced atomic layer deposition using new molybdenum precursor”
13. “Low-temperature growth of 2D-MoS2 thin films by plasma-enhanced atomic layer deposition using new molybdenum precursor”
The 22nd International Conference on Atomic Layer Deposition (ALD 2022), Belgium
Jeong-Hun Choi, Min-Ji Ha, Ji-Hoon Ahn
12. “Wafer-scale crystalline MoS2 thin films with controlled morphology using pulsed metal-organic chemical vapor deposition at low temperature”
12. “Wafer-scale crystalline MoS2 thin films with controlled morphology using pulsed metal-organic chemical vapor deposition at low temperature”
The 29th Korean Conference in Semiconductors(KCS 2022), Korea (2022)
Jeong-Hun Choi, Min-Ji Ha, Ji-Hoon Ahn*
11. “Low Temperature Growth of Wafer-scale 2D MoS2 Thin Films by Pulsed Metal-organic Chemical Vapor Deposition ” - Domestic
11. “Low Temperature Growth of Wafer-scale 2D MoS2 Thin Films by Pulsed Metal-organic Chemical Vapor Deposition ” - Domestic
The 28th Korean Conference in Semiconductors (KCS 2021), Korea (2021)
Jeong-Hun Choi, Min-Ji Ha, Ji-Hoon Ahn*
10. “Low temperature growth of wafer-scale 2D MoS2 thin films by cyclic metal-organic chemical vapor deposition” - International
The 6th International Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2020), Korea
Jeong-Hun Choi, Seung Won Lee, Hyo-Bae Kim, Min-Ji Ha, Ji-Hoon Ahn*
9. “Effect of Hydrogen Introduction on Plasma Sulfurization of MoO3 at Low Temperature” - Domestic
The 27th Korean Conference in Semiconductors (KCS 2020), Korea (2020)
Jeong-Hun Choi, Seung Won Lee, Hyo Bae Kim, Ji-Hoon Ahn*
8. “Wafer-scale MoS2 thin films deposited via H2S plasma sulfurization of ALD-grown MoO3 at low temperature” - International
The AVS 19th International Conference on Atomic Layer Deposition (ALD 2019), USA (2019)
Jeong-Hun Choi, Ji-Hoon Ahn*
7. “Plasma-enhanced atomic layer deposition of molybdenum compounds thin films using Mo(CO)6 with various plasma gases” - International
AVS 65th International Symposium & Exhibition, USA (2018)
Jeong-Hun Choi, Seung-Won Lee, Cheol-Min Hyun, Ji-Hoon Ahn*
6. “Plasma-enhanced atomic layer deposition of molybdenum compounds thin films using Mo(CO)6 with various plasma gases” - International
The AVS 18th International Conference on Atomic Layer Deposition (ALD 2018), Korea (2018)
Jeong-Hun Choi, Seung-Won Lee, Cheol-Min Hyun, Ji-Hoon Ahn*
5. “Plasma-enhanced atomic layer deposition of molybdenum compounds thin films using Mo(CO)6 with various plasma gases” - International
ISPlasma2018/IC-PLANTS2018, Japan (2018)
Jeong-Hun Choi, Seung-Won Lee, Cheol-Min Hyun, Hyo-Bae Kim, Ji-Hoon Ahn*
4. “Plasma-enhanced atomic layer deposition of molybdenum compounds thin films using Mo(CO)6 with various plasma gases” - Domestic
The 25th Korean Conference in Semiconductors (KCS 2018), Korea (2018)
Jeong-Hun Choi, Seung Won Lee, Cheol-Min Hyun, Ji-Hoon Ahn*
3. “Flexible Thermoelectric Material based on CNT-polymer composite" - Domestic
The 24th Korean Conference in Semiconductors (KCS 2017), Korea (2017)
Jeong-Hun Choi, Cheol-Min Hyun, Min-Sik Kim, Hyeok-ju Lee, Tae-Hun Jwa, Kyoung Ryun Lee, Ji-Hoon Ahn*
2. “Flexible Thermoelectric Materials Based on CNT-polymer Composite” - International
The 4th International Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2016), Korea (2016)
Jeong-Hun Choi, Min-Sik Kim, Chul-Min Hyun, Tae-Hun Jwa, Hyeok-ju Lee,Kyoung Ryun Lee, Ji-Hoon Ahn*
1. “Orthorhombic-SnS nano-crystal의 photo-thermoelectric 특성에 관한 연구” - Domestic
Materials Research Society of Korea, spring Conference 2016 (MRSK 2016), Korea (2016)
Jeong-Hun Choi, Chaeeun Kim, Ji-Hoon Ahn*
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