서울시립대학교 UNIVERSITY OF SEOUL
닫기

김현식

  • 연구분야유전체 소재, 가스센서용 소재, 열전소재
  • 교수연구실과학기술관 522호
  • 전화번호02-6490-2406
  • HOMEPAGE http://emelab.uos.ac.kr
  • EMAILhyunsik.kim@uos.ac.kr

학력사항

2011.09 – 2016.06 California Institute of Technology 재료과학과, 박사
2005.10 – 2006.06 University of Cambridge 물리학과, 석사
2002.10 – 2005.06 University of Cambridge 물리학과, 학사

경력사항

2022.03 – 현재 서울시립대학교 신소재공학과, 조교수
2019.09 – 2022.02 홍익대학교 신소재공학과, 조교수
2015.07 – 2016.06 Northwestern University, Visiting Predoctoral Fellow
2006.07 – 2018.08 삼성전자 종합기술원, 전문연구원 (CL3)

연구실적

2021 대주신진과학자상, 한국세라믹학회

논문 및 저서

<대표논문>
2021 Weighted Mobility Ratio Engineering for High-Performance Bi–Te-Based Thermoelectric Materials via Suppression of Minority Carrier Transport, Advanced Materials, 33 (2021) 2005931.
2021 Isovalent sulfur substitution to induce a simultaneous increase in the effective mass and weighted mobility of a p-type Bi-Sb-Te alloy: an approach to enhance the thermoelectric performance over a wide temperature range, Acta Materialia, 205 (2021) 116578.
2021 Silver Nanowire Network Hybridized with Silver Nanoparticle-Anchored Ruthenium Oxide Nanosheets for Foldable Transparent Conductive Electrodes, ACS Applied Materials & Interfaces, 13 (2021) 11396.
2021 Concentration-dependent excess Cu doping behavior and influence on thermoelectric properties in Bi2Te3, International Journal of Energy Research, 1 (2021) 1.
2021 Synthesis, morphology, characterisation, and ethanol gas sensing of hierarchical flower-like Co-doped WO3 nanoplates by solvothermal route, Ceramics International, 47 (2021) 20956.
2021 Cumulative defect structures for experimentally attainable low thermal conductivity in thermoelectric (Bi,Sb)2Te3 alloys, Materials Today Energy, 21 (2021) 100795.
2021 Studies on phase formation behavior and thermoelectric transport properties of Cu-doped Bi2Te3–Bi2S3 system, Journal of Materials Research and Technology, 15 (2021) 4781.
2021 Control of Cu-doping behavior in n-type Cu0.01Bi1.99Te2.7Se0.3 polycrystalline bulk via fabrication technique change, Journal of Materials Research and Technology, 14 (2021) 765.
2021 Understanding bipolar thermal conductivity in terms of concentration ratio of minority to majority carriers, Journal of Materials Research and Technology, 14 (2021) 639.
2021 Se-induced enhancement of the high-temperature thermoelectric performance of n-type Cu0.008Bi2(Te,Se)3 alloys due to suppressed bipolar conduction, Journal of Alloys and Compounds, 884 (2021) 161030.
2020 Synchronized enhancement of thermoelectric properties of higher manganese silicide by introducing Fe and Co nanoparticles, Nano Energy, 72 (2020) 104698.
2020 Nanoparticles in Bi0.5Sb1.5Te3: A prerequisite defect structure to scatter the mid-wavelength phonons between Rayleigh and geometry scatterings, Acta Materialia, 185 (2020) 271
2020 Improved carrier transport properties by I-doping in n-type Cu0.008Bi2Te2.7Se0.3 thermoelectric alloys, Scripta Materialia, 186 (2020) 357.
2020 Band convergence in thermoelectric materials: Theoretical background and consideration on Bi–Sb–Te Alloys, ACS Applied Energy Materials, 3 (2020) 2214.
2020 Facile and accelerated production of RuO2 monolayers via a dual-step intercalation process, Inorganic Chemistry Frontiers, 7 (2020) 1445.
2019 Effect of density-of-states effective mass on transport properties of two converging valence bands, Journal of the Korean Ceramic Society, 56 (2019) 325
2018 Suppression of bipolar conduction via bandgap engineering for enhanced thermoelectric performance of p-type Bi0.4Sb1.6Te3 alloys, Journal of Alloys and Compounds, 741 (2018) 869.
2017 High thermoelectric performance in (Bi0.25Sb0.75)2Te3 due to band convergence and improved by carrier concentration control, Materials Today, 20 (2017) 452.
2016 Dislocation strain as the mechanism of phonon scattering at grain boundaries, Materials Horizons, 3 (2016) 234.
2016 Phonon scattering by dislocations at grain boundaries in polycrystalline Bi0.5Sb1.5Te3, Physica Status Solidi (b), 254 (2016) 1600103.
2015 Characterization of Lorenz number with Seebeck coefficient measurement, APL Materials, 3 (2015) 041506.
2015 Band gap estimation from temperature dependent Seebeck measurement—Deviations from the 2e|S|maxTmax relation, Applied Physics Letters, 106 (2015) 022112.

<대표특허>
2020 Ceramic dielectric, method of manufacturing the same, ceramic electronic component, and electronic device, US10872725B2 (등록)
2020 Dielectric material, multi-layered capacitors and electronic devices comprising the same, US10643791B2 (등록)
2020 Dielectric composites, and multi-layered capacitors and electronic devices comprising thereof, US10475583B2 (등록)
티탄산바륨 혼합분말 및 그 제조방법
2017 벌크 나노 복합체형 열전재료, 나노 복합체형 열전재료 분체 및 그 제조방법, KR101791599B1 (등록)
2017 자기열효과물질 미세 분말 및 자기열효과물질 소재의 제조방법, KR101736974B1 (등록)
2016 Thermoelectric material and method of preparing the same, US9461226B2 (등록)
2014 Method of producing nanophosphor particles, US8894957B2 (등록)
2012 Method of preparing metallic oxide phosphor, US8187496B2 (등록)
2011 Method of preparing zinc silicate-based phosphor and zinc silicate-based phosphor prepared using the method, US7901651B2 (등록)

주요특강영역

유전체 소재, 가스센서용 소재, 열전소재

사회활동

2021.07 – 현재 간사, 측정분석프로토콜 에너지·환경소재 측정·분석 연구단 전문가위원회 II
20201.01 – 2021.12 편집운영이사, 한국세라믹학회