logo

korean english

게시판

Home > 게시판 > 세미나

University of Massacusetts-Lowell 의 Joel Therrien 교수님을 초청하여 아래와 같이 특별 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁 드립니다. 

 

         아             래  

 

     1. 일시: 2013년 7월 25일(목) 오전 11시 

 

     2. 장소: 제1과학관 31355호실 물리학과 세미나실  

 

     3. 초청연사: Joel Therrien  교수님 (ECE Dept, University of Massacusetts-Lowell

 

     4. 제목: Beyond Graphene: Synthesis of Single Layer Graphitic Carbon Nitride — A Carbon-Nitrogen Alloy System

 

     5. 초록: Graphene attracted the world’s attention since its discovery in 2004. Dubbed “the next silicon” graphene has an impressive array of properties that made it a compelling potential competitor for silicon. However as time passed, the limitations in graphene have become more apparent and less likely to be overcome. In the meantime other 2-D materials have emerged. It is clear now that two-dimensional materials will exist as a unique class of materials. We have begun exploring a promising material: single layer graphitic carbon nitride (referred to as melon). The structure of melon resembles graphene with a hexagonal lattice of atoms, except that every other atom is either carbon or nitrogen. Due to nitrogen’s valency, the melon lattice has a lacey structure. Melon is a wide-bandgap semiconductor, with an optical bandgap of approximately 2.6eV. Ourgroup has succeeded in making melonat the wafer scale. Raman spectroscopy has been performed on single layer melon and multi layer samples.  Much like graphene, melon shows a unique raman spectrum when in single layer form. These experimental results have been compared to theoretical calculations for possible melon structures. Aside from Raman, a suite of materials characterization techniques has been applied to it to determine structural, electrical, and optical properties. Finally, results of the first melon based transistor 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 1091340
538 <6/25(화)>물리학과 특별세미나 개최 안내 2013.06.24 166048
» <7/25(목) 오전11시> 물리학과 특별세미나 개최 안내 2013.07.19 142846
536 <8/20> Radioprotection effect and anti-tumor immunity by TCM-EF in mice 2013.08.21 193599
535 <8/21(수)> 고온 초전도 특별세미나 2013.08.21 79776
534 <10/28> Magneto-electric response of multiferroic chiral magnets 2013.10.21 76480
533 <11/4 오전 10:30> Quantum transport through topological-metal strip 2013.10.23 92465
532 <11/4 오후 3:30> Surface impurity induced self energy in bulk on a topological insulator 2013.10.23 97395
531 <11/5(화)> 특별세미나 개최 안내 2013.11.01 234786
530 <11/11> Revealing magnetism of nanoislands with quantitative insights into spin-polarized scanning tunneling spectroscopy 2013.11.05 101996
529 <12/30> Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena 2013.12.16 136291
528 <12/26> Emergent Physics in 3D Correlated Topological Semimetals file 2013.12.20 157994
527 <12/30> Correlation between Raman scattering and conductance in a molecular junction 2013.12.23 72726
526 <1/2> MYRRHA Project (EU 4세대 원전 사업) 2013.12.30 63992
525 <3/28> A global financial settlement network and its cascading effects 2014.03.26 61468
524 <4/18(금)> 양자물질초전도체창의연구소 초청 세미나 2014.04.15 189264
523 <4/21(월) 오후 2시> Optical properties of iron-based conductors and superconductors 2014.04.15 78347
522 <5/12(월)> Nanoscale probing of electrochemical phenomena and ionic dynamics by scanning probe microscopy 2014.05.07 102040
521 콜로퀴움 게시판입니다. 2011.02.28 80342
520 콜로퀴움입니다. 2005.12.29 82069
519 콜로퀴움 강연 일정표 2006.02.21 90759