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안철현

직급: 조교수

전화번호: 033-640-2361

이메일: chahn@gwnu.ac.kr

소속: 공과대학 신소재·생명화학공학부 세라믹신소재공학전공

세부내용

학력

강릉원주대학교 학사
성균관대학교 석사
성균관대학교 박사

경력

한국전자기술연구원, 단기연구원 (2005.12. ~ 2006.10.)
성균관대학교, 박사후연구원/Research fellow (2013.03. ~ 2019.06.)
성균관대학교, 연구교수 (2019.07. ~ 2023.05.)
강릉원주대학교 세라믹신소재공학과 조교수 (2023.09. ~ )

전문분야

기후변화 대응 에너지 변환/저장용 소재 연구
기능성 스마트 반도체 소재 설계 연구
광/화학 센서 소자 개발 연구

주요논문

C.H. Ahn, W.S. Yang, J.J. KIm, H.K. Cho, “Nitrogen-Doped Amorphous Carbon/Dual-Phasic TiO2 Nanocomposite Electrodes Derived from Ti-Based Metal–Organic Frameworks Designed with a Mixed Linker Combination for High-Rate Lithium Storage, ACS Sustainable Chemistry & Engineering, 2023. xxx.
J.S. Yang, S.H. Jung, C.H. Ahn, W.S. Yang, J.J. Kim, H.K. Cho, “Highly Sensitive Hybrid Oxide Phototransistors with Photoresponsive Zeolitic‐Imidazolate‐Frameworks for Real‐Time Light Detection”, Advanced Optical Materials, 2023, 11, 2202467.
C.H. Ahn, J.J. Kim, W.S. Yang, H.K. Cho, “Multiple functional biomolecule-based metal-organic-framework-reinforced polyethylene oxide composite electrolytes for high-performance solid-state lithium batteries”, Journal of Power Sources, 2023, 557, 232528.
C.H. Ahn, W.S. Yang, J.J. Kim, J.H. Kim, H.K. Cho, “Design of Bronze-Rich Dual-Phasic TiO2 Embedded Amorphous Carbon Nanocomposites Derived from Ti-Metal–Organic Frameworks for Improved Lithium-Ion Storage”, Small methods, 2022, 6, 2201066.
C.H. Ahn, W.S. Yang, J.J. Kim, G.S. Priyanga, T. Thomas, N.G. Deshpande, H.S. Lee, H.K. Cho, “Design of hydrangea-type Co/Mo bimetal MOFs and MOF-derived Co/Mo2C embedded carbon composites for highly efficient oxygen evolution reaction”, Chemical Engineering Journal, 2022, 435, 134815.
C.H. Ahn, C.G. Deshpande, H.S. Lee, H.K. Cho, “Atomically controllable in-situ electrochemical treatment of metal-organic-framework-derived cobalt-embedded carbon composites for highly efficient electrocatalytic oxygen evolution”, Applied Surface Science, 2021, 554, 149651.
N.G. Deshpande, D.S. Kim, C.H. Ahn, S.H. Jung, Y.B. Kim, H.S. Lee, H.K. Cho, “β-like FeOOH nanoswords activated by Ni foam and encapsulated by rGO toward high current densities, durability, and efficient oxygen evolution, ACS Applied Materials & Interfaces, 2021, 13, 16, 18772-18783.
C.H. Ahn, N.G. Deshpande, H.S. Lee, H.K. Cho, “Energy Transfer‐Induced Photoelectrochemical Improvement from Porous Zeolitic Imidazolate Framework‐Decorated BiVO4 Photoelectrodes”, Small methods, 2012, 5(2), 2000753.
N.G. Deshpande, C.H. Ahn (1st), RR Koli, AS Jamadar, DS Kim, YB Kim, SH Jung, HK Cho, “Controlled nanostructured morphology of BiVO4 photoanodes for efficient on-demand catalysis in solar water-splitting and sustainable water-treatment”, Applied Surface Science, 2020, 514, 146075.
N.G. Deshpande, C.H. Ahn, D.S. Kim, S.H. Jung, Y.B. Kim, H.K. Cho, “Bifunctional reusable Co0.5Ni0.5Fe2O4 nanoparticle-grafted carbon nanotubes for aqueous dye removal from contaminated water”, Catalysis Science & Technology, 2020, 10, 6188-6197.
Y.J. Park, B.G. Kang, C.H. Ahn, H.K. Cho, H.K. Kwon, S.S. Park, J.H. Kwon, M.H. Choi, C.G. Lee, K.H. Kim,“Bionanoelectronic platform with a lipid bilayer/CVD-grown MoS2 hybrid”, Biosensors and Bioelectronics, 2019, 142, 111512.
S.H. Jung, C.H. Ahn, Y.B. Kim, D.S. Kim, N.G. Deshpande, H.K. Cho, “Inactivation of low-temperature-induced numerous defects at the electrode/channel interfaces using ultrathin Al2O3 layers”, Microelectronic Engineering, 2019, 216, 111049.
C.M. Lee, C.H. Jin, C.H. Ahn, H.K. Cho, J.H. Lim, S. M. Hwang, J.H. Joo, “Enhanced Gas Sensing Performance of Surface‐Activated MoS2 Nanosheets Made by Hydrothermal Method with Excess Sulfur Precursor”, Physica Status Solidi A, 2019, 216, 1800999.
J.S. Kim, Y.B. Kim, S.K. Baek, Y.D. Yun, S.H. Jung, S.W. Cho, C.H. Ahn, H.K Cho, “Compositionally graded SnO2/TiO2 bi-layered compounds with dramatically enhanced charge transport efficiency for self-driven water purification applications”, Journal of Alloys and Compounds 2019, 776, 839-849.
C.M. Lee, G.C. Park, C.H. Ahn, J.W. Choi, C.H. Park, H.K. Cho, J.H. Lim, J.H. Joo, “Effects of Precursor Concentration on Dimensional Size, Defect State, and Gas Sensing Performance of MoS2 Sheets Synthesized by Hydrothermal Method, Physica Status Solidi A, 2018, 215, 1800079.
W.J. Kang, C.H. Ahn, K.S. Kim, S.H. Jung, S.W. Cho, H.K. Cho, Y.S. Kim, “Development of extremely low temperature processed oxide thin film transistors via atmospheric steam reforming treatment: Interface, surface, film curing”, Journal of Alloys and Compounds, 2018, 744, 23-33.
K.S. Kim, C.H. Ahn (1st), S.H. Jung, S.W. Cho, H.K. Cho, “Toward adequate operation of amorphous oxide thin-film transistors for low-concentration gas detection”, ACS applied materials & interfaces, 2018, 10, 10185-10193.
C.H. Ahn, Y.K. Kim, W.J. Kang, K.S. Kim, H.K. Cho, “High photosensitivity and wide operation voltage in two-dimensional CdS nano-crystal layer embedded a-InGaZnO hybrid phototransistors”, Journal of Alloys and Compounds, 2017, 725, 891-898.
W.J. Kang, K.S. Kim, C.H. Ahn, S.W. Cho, D.E. Kim, B.R. Kim, H.K. Cho, Y.S. Kim, “Non-ideal current drop behavior in ultra-thin inorganic a-InGaZnO thin film transistors”, Journal of Materials Science: Materials in Electronics 2017, 28, 8231-8237.
K.S. Kim, C.H. Ahn, W.J. Kang, S.W. Cho, S.H. Jung, D.H. Yoon, H.K. Cho, “An all oxide-based imperceptible thin-film transistor with humidity sensing properties”, Materials 2017, 10(5), 530.
M.G. Yun, Y.K.Kim, C.H. Ahn (1st), S.W. Cho, W.J. Kang, H.K. Cho, Y.H. Kim,“Low voltage-driven oxide phototransistors with fast recovery, high signal-to-noise ratio, and high responsivity fabricated via a simple defect-generating process”, Scientific reports, 2016, 31991.
M.G. Yun, C.H. Ahn, Y.K. Kim, S.W. Cho, H.K. Cho, H.S. Kim, “Effects of top-layer thickness on electrical performance and stability in VZTO/ZTO bi-layer thin-film transistors”, Journal of Alloys and Compounds, 2016, 672, 449-456.
C.H. Ahn, W.J. Kang, Y.K. Kim, M.G. Yun, H.K. Cho, “Highly Repeatable and Recoverable Phototransistors Based on Multifunctional Channels of Photoactive CdS, Fast Charge Transporting ZnO, and Chemically Durable Al2O3 Layers”, ACS Applied MAterials Interfaces 2016, 8, 24, 15518-15523.
Y.K. Kim, C.H. Ahn (1st), M.G. Yun, S.W. Cho, W.J. Kang, H.K. Cho, “Periodically pulsed wet annealing approach for low-temperature processable amorphous InGaZnO thin film transistors with high electrical performance and ultrathin thickness”, Scientific reports, 2016, 26287.
C.H. Ahn, S.H. Kim, Y.H. Kim, H.K. Cho, “Extremely Thin Al2O3 Surface‐Passivated Nanocrystalline ZnO Thin‐Film Transistors Designed for Low Process Temperature.” Journal of the American Ceramic Society, 2016, 99(4), 1305-1310.
W.J. Kang, C.H. Ahn, M.G. Yun, S.W. Cho, Y.K. Kim, B. Kim, H.K. Cho, Y. Kim, “Expedient floating process for ultra-thin InGaZnO thin-film-transistors and their high bending performance”, RSC Advances 2016, 6(68), 63418-63424.
C.H. Ahn, H.K. Cho, H. Kim, “Carrier confinement effect-driven channel design and achievement of robust electrical/photostability and high mobility in oxide thin-film transistors”,Journal of Materials Chemistry C, 2016, 4, 727-735.
C.H. Ahn, S.H.Kim, Y.K. Kim, H.S. Lee, H.K. Cho, “Effect of post-annealing temperatures on thin-film transistors with ZnO/Al2O3 superlattice channels”, 2015, 584, 336-340.
M.G. Yun, C.H. Ahn, S.W. Cho, S.H. Kim, Y.K. Kim, H.K. Cho, “Dual electrical behavior of multivalent metal cation-based oxide and its application to thin-film transistors with high mobility and excellent photobias stability”, ACS applied materials & interfaces, 2015, 7, 11, 6118-6124.
S. Jee, W. Choi, C.H. Ahn, G. Yang, H.K. Cho, J.H. Lee, C. Yu, “Enhanced oxygen reduction and evolution by in situ decoration of hematite nanoparticles on carbon nanotube cathodes for high-capacity nonaqueous lithium–oxygen batteries”, Journal of Materials Chemistry A, 2015, 3, 13767-13775.
C.H. Ahn, S.H. Kim, M.G. Yun, H.K. Cho, “Design of step composition gradient thin film transistor channel layers grown by atomic layer deposition”, Applied Physics Letters, 2014, 105, 223513.
C.H. Ahn, J.H. Lee, J.Y. Lee, H.K. Cho, “Correlation Between Nano-Scale Microstructural Behavior and the Performance of ZnO Thin-Film Transistors”, Journal of Nanoscience and Nanotechnology, 2014, 14, 8969-8973.
C.H. Ahn, M.G. Yun, S.Y. Lee, H.K. Cho, “Enhancement of electrical stability in oxide thin-film transistors using multilayer channels grown by atomic layer deposition”, IEEE Transaction on Electron Devices, 2014, 61(1), 73-78.
C.H. Ahn, S.H. Kim, S.W. Cho, M.G. Yun, H.K. Cho, “Double-layer channel structure based ZnO thin-film transistor grown by atomic layer deposition”, Phys. State Solidi RRL 2014, 8, No. 4, 328-331.
C.H. Ahn, K. Senthil, H.K. Cho, S.Y. Lee, “Artificial semiconductor/insulator superlattice channel structure for high-performance oxide thin-film transistors”, Scientific Report, 2013, 3, 2737.
C.H. Ahn, S.Y. Lee, H.K. Cho, “Influence of growth temperature on the electrical and structural characteristics of conductive Al-doped ZnO thin films grown by atomic layer deposition”, Thin Solid Films, 2013, 545, 106-110.
C.H. Ahn, S.K. Mohanta, H.K. Cho, “Donor and acceptor dynamics of phosphorous doped ZnO nanorods with stable p-type conduction:photoluminescence and junction characteristics”, Journal of Nanoscience and Nanotechnology, 2012, 7, 5571-5576.
J.H. Kim, D.K. Seo, C.H. Ahn, S.W. Shin, H.H. Cho, H.K. Cho, “Hybrid solution processed InGaO3(ZnO)m thin films with periodic layerd structures and thermoelectric properties”, Journal of Materials Chemistry, 2012, 22, 16312.
C.H. Ahn, J.H. Kim, H.K. Cho, “Tunable electrical and optical properties in composition controlled Hf:ZnO Thin Films Grown by Atomic layer Deposition”, Journal of the Electrochemical Society, 2012, 159, H384-H387.
C.H. Ahn, B.H. Kong, H. Kim, H. K. Cho, “Improved Electrical Stability in the Al doped ZnO Thin-film-transistors grown by atomic layer deposition”, Journal of the Electrochemical Society, 2011, 158, H170-H173.
C.H. Ahn, Y.Y. Kim, H.K. Cho, “Influence of synthesis temperature on the properties of Ga-doped ZnO nanorods grown by thermal evaporation”, Journal of Nanoscience and Nanotechnology, 2011, 11, 5571-5576.
C.H. Ahn, H. Kim, H.K. Cho, “Deposition of Al doped ZnO layers with various electrical types by atomic layer deposition”, Thin Solid Films, 2010, 519, 747-750.
C.H. Ahn, W.S. Han, B.H. Kong, H.K. Cho, “Ga-doped ZnO nanorod arrays grown by thermal evaporation and their electrical behavior”, Nanotechnology, 2019, 20, 015601.
C.H. Ahn, Y.Y. Kim, D.C. Kim, S.K. Mohanta, H.K. Cho, “A comparative analysis of deep level emission in ZnO layers deposited by various methods”, Journal of Applied Physics, 2009, 105, 013502.
C.H. Ahn, S.K. Mohanta, B.H. Kong, H.K. Cho, “Enhancement of band-edge emission of ZnO from onn-dimensional ZnO/MgZnO core/shell nanostructures”, Journal of Physics D: Applied Physics, 2009, 42, 115106.
C.H. Ahn, S.K. Mohanta, N.E. Lee, H.K. Cho, “Enhanced exciton-phonon interactions in photoluminescence of ZnO nanopencils”, Applied Physics Letters, 2009, 94, 261904.
C.H. Ahn, Y.Y. Kim, S.W. Kang, B.H. Kong, S.K. Mohanta, H.K. Cho, J. H. Kim, H. S. Lee,“Dependency of oxygen partial pressure on the characteristics of ZnO films grown by radio frequency magnetron sputtering”, Journal of Materials Science: Materials in Electronics, 2008, 19, 744-748.
C.H. Ahn, Y.Y. Kim, S.W. Kang, H.K. Cho, “Phosphorus-doped ZnO films grown nitrogen ambience by magnetron sputtering on sapphire substrates”, Physica B: Condensed Matter, 2007. 401-402, 370.379.

특허

“바이오매스를 활용한 금속 나노입자 소재의 제조 방법”, 대한민국 제10-2273538
“산화물 반도체 박막 제조방법”, 대한민국 제10-1923649
”반투명막 제조방법, 가시광영역의 흡수성 특성을 갖는 산화물 반도체 및 그 제조방법“, 대한민국 제10-2016-0085989
”반도성 박막과 절연성 박막으로 적층형성된 초격자 구조 박막이 구비된 반도체 소자“, 대한민국, 제10-1467237