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 1078841
685 2019학년도 2학기 콜로퀴움 일정 2019.07.17 426694
684 <12/3> Magnetic couplings, optical spectra, and spin-orbit exciton in 5d Mott insulator Sr2IrO4 2012.11.26 402808
683 <Mar.3(Wed.)>Scaling laws in Natural Language Processing 2021.02.25 343986
682 2017학년도 1학기 콜로퀴움 일정 2017.01.05 306173
681 <10/25> Wave properties of dipole-exchange spin waves in confined magnetic thin films 2006.10.25 296102
680 <5/16> 물리학자가 바라 본 단백질: 왜, 어떻게 연구하는가? 2012.05.10 269062
679 <6/11> Advanced Physiological Optics and Its Ophthalmic Applications 2014.05.28 258542
678 2020학년도 1학기 콜로퀴움 일정 2020.01.31 254664
677 BK 석학초청 특별세미나 - Frustration and dimensional reduction in multi-orbital systems 2011.10.28 252852
676 <3/14>Adaptive Optics for the Human Eye and Ophthalmic Applications 2008.03.12 248234
675 <6/17> Oscillating Fuzzy Sphere and M5/anti M5 configurations in ABJM model 2009.06.16 246646
674 <12/21> Special Seminar by Professor Ilya Vekhter 2010.11.30 244121
673 <8/30(Wed.)10:30>​Technology convergence and applications of Large-Area Electronics, e-Textiles, bio-sensors and bio-electronics 2017.08.29 243807
672 <11/6> Graphene plasmon and Plasmonics 2013.10.31 240638
671 <June.12(Wed.)> Ribocomputing: Cellular Logic Computation using RNA Devices file 2019.06.07 238096
670 <Jan.14(Thu.)>Oxygen sponge effects for epitaxial manganite thin film design 2021.01.11 235706
669 <11/5(화)> 특별세미나 개최 안내 2013.11.01 230170
668 <5/16(토)> 세미나 개최 안내 2015.05.18 217020
667 <Sep. 23(Wed.) 4:30 PM>Grain boundary effect in Metal : A journey of discovery from crystal to thin films without grain boundaries 2015.09.16 208588