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 1078575
565 <3/25(수) 오후4:30분> 슈퍼컴퓨터와 국가경쟁력 2015.03.19 61328
564 <8/24(Fri.) 3:30pm>Secret interactions of light sterile neutrinos with the DSNB 2018.08.21 61585
563 <1/16(금)> Systems biology of genetic oscillations: Application to phenotypic switches 2015.01.13 61916
562 <June.5(Wed.)> Fluid gravity duality 2019.05.29 62019
561 <5/6(수) 오후4:30분> 빛의 여행 2015.04.29 62029
560 <6/2(화)> 세미나 개최 안내 2015.06.01 62091
559 <4/1(수) 오후4:30분> 과학기술과 미디어 2015.03.26 62160
558 <Nov. 23(Wed.) 4:30 PM> Dry (Plasma) etch process in Semiconductor Device 2016.11.16 62166
557 <3/11(수) 오후4시:30분> 테크노-이매지네이션(Techno-imagination) 2015.03.04 62282
556 <10/25(Tue.) 11:00am>Crystallization of Water under Modulating Pressures 2016.10.14 62583
555 <Nov.15(Wed.) 4:30 PM> Mixed metal oxide films for energy and memory device applications 2017.11.08 62626
554 <Oct. 5(Wed.) 4:30 PM> 국제원자력기구 (IAEA)와 핵데이터 2016.09.22 62659
553 <10/25(Tue.) 11:00am>Crystallization of Water under Modulating Pressures 2016.10.10 62706
552 <Oct. 19(Wed.) 10:00 AM> Hyper-Kamiokande project -The future of neutrino physics in Japan 2016.10.12 62762
551 <Mar.13(Wed.)> Physics in Medicine: Magnetic Resonance Imaging 2019.03.07 62865
550 <5/20(수) 오후4:30분> Nonequilibrium statistical physics for Brownian heat engine 2015.05.14 62971
549 <Nov. 11(Wed.) 4:30 PM> 그래핀 산업의 현황과 전망 2015.11.09 63102
548 <1/2> MYRRHA Project (EU 4세대 원전 사업) 2013.12.30 63220
547 <1/16(Wed) 4:00pm> Band Representation Analysis of Intersecting Nodal Rings in Semiconducting Layers 2019.01.09 63405
546 <11/22> Spin polarization of photoelectrons from a topological insulator 2012.10.22 63631