korean english


Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.

4시 20분부터 제1과학관 31214 e+강의실에서 간단한 다과를 제공합니다.

아 래

Title: Mixed metal oxide films for energy and memory device applications

Speaker: 조  승  호 교수님  (UNIST 신소재공학과)

Date & Time: Nov. 15. (Wed.) 2017, 4:30 PM

Place: Natural Science 1,  Room No. 31214


Metal oxides are abundant in nature and exhibit high chemical and thermal stabilities. Furthermore, the metal elements are able to form a large diversity of oxides. These can adopt a vast number of structural geometries with an electronic structure that can exhibit metallic, semiconductor or insulator characters. In particular, ‘mixed metal oxides’ such as solid solutions and composites can be useful in a wide range of technology areas because of their greater flexibility on properties and multi-functionalities (i.e., more freedom to tune or enhance functionalities that cannot be obtained from individual constituents). In this talk, I will introduce mixed metal oxide (solid solution and self-assembled heteroepitaxial nanocomposite) thin films grown by pulsed laser deposition for investigating photocatalytic activities and resistive switching properties of the materials. ‘BiFeO3 and SrTiO3’ without phase separation and ‘ZnFe2O4 and SrTiO3’ with phase separation were chosen as model oxide combinations and their photoelectrochemical water splitting activities were investigated. In addition, electroforming-free resistive switching was achieved by using ‘Sm-doped CeO2 and SrTiO3’ nanocomposites. The resistive switching behaviors were controlled by Sm-dopant concentrations. Resistive switching and growth mechanisms of the Sm-doped CeO2 and SrTiO3 nanocomposites will be discussed.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1079570
586 <7/21(월)> The rapid neutron capture nucleosynthesis: A hot topic in the Nuclear Astrophysics study 2014.07.15 121335
585 <5/15>Black Hole Entropy Function in (Anti-)de Sitter Space-Time 2008.05.09 121107
584 <7/20(Thu.)14:00>Engineering and probing topological properties of Dirac semimetal films by asymmetric charge transfer 2017.07.18 120802
583 <12/4> The "Physics" of Climate Change 2009.12.02 119190
582 <4/27> Organic-based Magnet and Organic-based spintronics : New science and Technologies 2010.04.22 118276
581 <Oct.15(Thu) 16:30> Single-Molecule Approach to Homology Search & Strand Exchange in Homologous Recombination 2015.10.12 117598
580 <8/5>Brane superpotential via local Calabi-Yau spaces 2009.08.03 117427
579 <5/14> Search for exotic materials: strongly correlated electron system 2010.05.10 116865
578 <6/18> Multiferroics: Magnetism-driven Ferroelectricity 2009.05.27 116057
577 <10/15> Electric control of magnetic nanostructures via spin torque 2010.10.08 115755
576 <8/17> AdS Black Hole Solutions in Extended New Massive Gravity 2010.08.16 115721
575 <Sep. 29(Wed.)> Longitudinal Spin Seebeck effect in Pt/YIG structure with monolayer WSe2 and MoS2 interlayer 2021.09.16 115582
574 <May 17(Wed.) 4:30 PM>Printed Electronics 2017.05.10 115469
573 <4/13> Introduction to Quantum Information Processing 2007.04.11 115389
572 <Nov. 8(Wed.) 4:30 PM> 연성물질 기반 위상학적 결함구조의 상전이와 응 2017.11.01 115211
571 <7/24(Mon.)11:00>Antenna Arrays for Astroparticle Physics: Radio Detection of High-Energy Cosmic Rays 2017.07.19 114985
570 <6/11(Mon.)3:30pm> Spontaneous Leptogenesis in Continuum-Clockwork Axion Models 2018.06.08 114940
569 <7/28> NQR/NMR study on a single crystal of LiFeAs 2010.07.20 114468
568 <2/16>Development of Micromegas detectors for neutron physics 2010.02.01 114082
567 <3/26> Shedding infrared light on high-Tc superconductors 2014.03.19 113979