korean english


Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.

4시 20분부터 제1과학관 31214 e+강의실에서 다과를 준비하오니 많은 참석 부탁드립니다


아 래


제목: 나노구조 산화물 재료의 기능성-용매화전자에서 전자화합물까지...


연사: 김   성   웅  교수님 (성균관대학교 에너지과학과)


일시: 2012년 5월 23(수) 오후4:30


장소: 제1과학관 31214  e+첨단강의실



  This talk will cover the functionalities of nanostructured oxide materials composed of ubiquitous elements, specially the electro-active functionalities of both natural and artificial nanostructured oxide. It is well-known in the college textbook that the abundant light-metal oxides such as SiO2, Al2O3 and CaO are typical insulators exhibiting no electro-active functionalities. However, this common sense should be revised to that “Nanostructured light-metal oxides show the electrical conduction from semiconducting to metallic and finally to superconductivity.” This phenomenon is based on the interstitial electrons in a structural space with the size of nanoscale, which have a long history over 2 century, from the birth of solvated electrons discovered in 1806 to the recent discovery of electride materials.

Electrides, ionic compounds with electrons working as anions, are regarded as new elecro-active materials in condensed matter physics and material science. Electrides have been studied extensively owing to exotic electronic structures, relevant unique chemical and physical properties based on interstitial electrons. A discovery of new electride in light-metal oxide, 12CaO×7Al2O3 (C12A7) with a high stability under ambient condition, facilitates and widens the electride researches for scientific and practical applications, and changes the above-mentioned common sense in science. In this talk, a history from the birth solvated electrons discovered in 1806 to a recent achievement of our C12A7 will be introduced. Further, as a promising candidate of energy-related materials, the physical and chemical properties of electrides, being utilized as a new electron source material, will be discussed. Additionally, the artificial nanostructure between insulating oxides having a high potential as a new electronics and an energy material will be introduced.


번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1020492
162 <11/28> Extremal Black Holes and Holographic C-theorem 2012.11.28 90561
161 <12/19> The BLG Theory in Light-Cone Superspace 2009.12.15 90651
160 <1/26> Hamiltonian formalism 2011.01.19 90942
159 <7/3> Complex networks and the graph structure of metabolism 2008.06.26 91048
158 <5/30(금)> 입자물리이론 그룹 미니 워크숍 개최 안내 2014.05.29 91220
157 <11/28> Extremal Black Holes and Holographic C-theorem 2012.11.28 91270
156 <10/8 (월)>물리학과 특별세미나 개최 안내 2012.10.05 91305
155 <5/11> Hybrid Josephson Junctions of Various Nanostructures 2011.05.04 91324
154 <11/9(Fri.) 11:00am>Geometrically frustrated magnetism on triangular lattice 2018.11.05 91506
153 <7/15> Experiment for Discoveries of Extrasolar Planets 2009.07.13 91613
152 <4/28> Generalised cosmological scaling solutions in braneworld and their duality properties 2006.04.24 91754
151 <11/26> The Carbon New Age 2010.11.18 91993
150 <4/22> How Many is Different? Ideal Bose gas revisited 2011.04.22 92172
149 <7/20(Thu.)14:00>Engineering and probing topological properties of Dirac semimetal films by asymmetric charge transfer 2017.07.18 92700
148 <11/29> Kahler Inflation and WMAP7 data - a top down approach to Cosmology 2010.11.25 93036
147 <2/1> The Surface Science of Adsorption on Crystalline Ferroelectric Polymer Surfaces 2010.01.25 93195
146 <11/26> Effective Holographic Theories for Condensed Matter Systems 2010.11.23 93353
145 <7/21(월)> The rapid neutron capture nucleosynthesis: A hot topic in the Nuclear Astrophysics study 2014.07.15 93364
144 <5/18> Baryons in AdS/QCD 2007.05.15 93587
143 <5/18> Three magics to hold an atom without perturbation 2011.05.09 93636