korean english


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 1015106
222 <4/5(Wed.) 11:00am>Adhesion forces between nanoparticles in gas-phase processes and application 2017.04.03 85120
221 <11/11> Revealing magnetism of nanoislands with quantitative insights into spin-polarized scanning tunneling spectroscopy 2013.11.05 85199
220 <10/10>Self-reconfigurable robots 2008.10.07 85318
219 <5/8>Recent trend of thin film battery 2009.05.06 85370
218 <8/17> Is Quantum Criticality a Key to Unconventional Superconductivity? 2006.08.09 85403
217 <3/16> Inelastic X-ray Scattering: past, present, and the future 2011.03.10 85441
216 <June 10(Thu.)>Oxide electronics utilizing spin-orbit coupling 2021.05.31 85465
215 <4/2> Supersymmetric vacua of mass-deformed M2-brane theory 2010.03.29 85499
214 <3/26> Shedding infrared light on high-Tc superconductors 2014.03.19 85599
213 <4/3>Enhanced emission rate from a single quantum well using surface plasmon 2009.03.31 85656
212 2011학년도 2학기 콜로퀴움 일정 안내 2011.08.22 85921
211 <5/12> An Infrared View of the Universe 2006.05.09 85996
210 <4/16>같은 곳을 바라보는 다른 시선 2010.04.09 86097
209 <1/14>Dark Matter signals from PAMELA and ATIC 2009.01.12 86111
208 <11/4>Plasmonic Properites of Metallic Nanostructures 2009.10.30 86138
207 <12/7>유럽입자물리연구소에서의 CMS 실험 2007.12.03 86217
206 2007학년도 2학기 콜로키엄 schedule 안내 2007.09.27 86402
205 <6/19> 초전도 특별세미나 2012.06.11 86543
204 <10/9> Smearing effect of membrane in plane-wave matrix model 2009.10.05 86550
203 <11/20> Particle Accelerators: Driving Forces for Energy 2009.11.16 86590