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Plasmonic-induced fluorescence resonance energy transfer to harness entire solar photons

세미나가 이번주 목요일(9월 9일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : Plasmonic-induced fluorescence resonance energy transfer to harness entire solar photons연 사 : 고두현 교수(성균관대학교 화학과)일 시 : 2021년 9월 9일(목) 오후 4시 30분<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================Plasmonic-induced fluorescence resonance energy transfer to harness entire solar photons Doo-Hyun Ko(dhko@skku.edu)Department of Chemistry, Sungkyunkwan University The conversion and manipulation of light via lanthanide-based upconversion (UC) and downshifting (DS) show promise in numerous applications. We demonstrate the lanthanide-doped nanotemplates to improve conversion of ultraviolet and near-infrared to visible light through resonant-mode excitation. The templates are fabricated using nanoimprint technique wherein ordered arrays of nanoscale features are readily made over large areas. The facile process and mild fabrication condition for the proposed structure has potential advantage of applying for flexible devices. It is found that optimized silver nanodisk and the conversion layer thickness match MIM (metal-insulator-metal) resonance mode and thereby result in both enhanced upconversion and downshifting luminescence. All lanthanide luminescence layers for upconversion and downshifting process enable to utilize the cavity mode for the enhanced both luminescence performance by matching emission range from both upconversion and downshifting. The structure is showing a promising way to harness the entire solar photons by converting both ultraviolet and near-infrared to visible light concurrently through resonant-mode excitation.
- 2021년 9월 9일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-09-09
- WRITER : 화학과
- HIT : 1233
Transition Metal-Catalyzed Hydrofunctionalization of Unsaturated Bonds: What Would be the Next Stage?

세미나가 이번주 목요일(9월 2일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : Transition Metal-Catalyzed Hydrofunctionalization of Unsaturated Bonds: What Would be the Next Stage?연 사 : 신광민 교수(성균관대학교 화학과)일 시 : 2021년 9월 2일(목) 오후 4시 30분<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================ body{font-family :돋움; color : #000000; font-size : 10pt; margin: 7px 7px 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} Transition Metal-Catalyzed Hydrofunctionalization of Unsaturated Bonds: What Would be the Next Stage? Kwangmin ShinDepartment of Chemistry, Sungkyunkwan University, Suwon 16419, South KoreaEmail: kmshin@skku.edu Alkenes and other unsaturated compounds have been regarded as attractive starting materials in modern organic syntheses owing to the abundance, readily availability, and synthetic versatility of these substrates. Among the transformation of these unsaturated compounds, hydrofunctionalization, an addition of a hydrogen and a functional group across a carbon-carbon double bond, is arguably one of the most efficient methods to prepare more complex molecules from simple alkenes. As a result, a diversity of approaches has been developed. Among these strategies, metal-hydride catalyzed olefin hydrofunctionalization has been received particular attention owing to the fact that the desired transformations can be achieved by suitable choice of catalyst/ligand system. Here, I present my research effort toward the establishment of novel carbon-carbon and carbon-heteroatom bond forming reactions enabled by transition metal (Cu and Pd) catalysis.The first part of this talk will discuss the development of copper hydride-catalysis for stereoselective allylation of aldehydes with unactivated 1,3-dienes and enantioselective hydromethylation of vinylarenes.[1,2] Mechanistic investigations will also be described. In the second part, the development of palladaelectrocatalysis for various types of hydrofunctionalization of vinylarenes will be discussed.[3] References[1] Li, C.†; Shin, K.†; Liu, R.Y.; Buchwald, S. L.* Angew. Chem., Int. Ed.2019, 58, 17074-17080. († equally contributed)[2] Shin, K.; Buchwald, S. L.* Manuscript in preparation. [3] Mandal, A.; Kim, H.*; Shin, K.*, Manuscript in preparation.
- 2021년 9월 2일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-09-01
- WRITER : 화학과
- HIT : 1132
Quantum algorithms for the quantum chemical calculations of open shell molecules

body{font-family :돋움; color : #000000; font-size : 10pt; margin: 7px 7px 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} 세미나가 이번주 목요일(5월 20일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : Quantum algorithms for the quantum chemical calculations of open shell molecules연 사 : Prof. Kenji Sugisaki(Osaka City University)일 시 : 2021년 5월 20일(목) 오후 4시 30분* 실시간 온라인(Webex)으로 진행되는 세미나입니다.<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================Quantum algorithms for the quantum chemical calculations of open shell moleculesKenji SugisakiDepartment of Chemistry, Graduate School of Science, Osaka City Universitysugisaki@osaka-cu.ac.jp Quantum chemical calculations are one of the most promising applications of quantum computers in near future. A quantum phase estimation (QPE) algorithm enables us to calculate the full-CI energy in polynomial time, although the computation time for the full-CI on classical computers scales exponentially against the system size. A quantum–classical hybrid algorithm known as a variational quantum eigensolver (VQE) can compute energy expectation values of approximated wave functions generated by applying parametrized quantum circuits.Open shell molecules have many low-lying electronic states with different spin multiplicities, and simple computational methods like DFT sometimes fail to predict their electronic structure in the ground state even qualitatively. Sophisticated quantum chemical calculations are highly desired to correctly describe their electronic structures. In this talk, we will briefly review the theoretical methods for quantum chemical calculations on quantum computers, and introduce quantum algorithms designed to treat electronic structures of open shell molecules on quantum computers. References:[1] K. Sugisaki et al, J. Phys. Chem. A2016, 120, 6459–6466.[2] K. Sugisaki et al, ACS Cent. Sci.2019, 5, 167–175. [3] K. Sugisaki et al, Phys. Chem. Chem. Phys.2019, 21, 15356–15361.[4] K. Sugisaki et al, Phys. Chem. Chem. Phys.2020, 22, 20990–20994.[5] K. Sugisaki et al, Chem. Sci.2021, 12, 2121–2132.
- 2021년 5월 20일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-05-18
- WRITER : 화학과
- HIT : 1422
Surface reaction mechanism on metal/oxide interfaces of model catalysts uncovered with operando surface techniques

세미나가 이번주 목요일(5월 6일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : Surface reaction mechanism on metal/oxide interfaces of model catalysts uncovered with operando surface techniques연 사 : 박정영 교수(KAIST)일 시 : 2021년 5월 6일(목) 오후 4시 30분* 실시간 온라인(Webex)으로 진행되는 세미나입니다.<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================Surface reaction mechanism on metal/oxide interfaces of modelcatalysts uncovered with operando surface techniquesJeong Young ParkCenter for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon305-701, South KoreaDepartment of Chemistry, Korea Advanced Institute of Science and Technology (KAIST),Daejeon 305-701, South KoreaThe origin of the synergistic catalytic effect between metal catalysts and reducibleoxide has been debated for decades. Clarification of this effect, namely the strong metal–support interaction (SMSI), requires an understanding of the geometric and electronicstructures of metal–metal oxide interfaces under operando conditions. A bimetallic Pt alloycatalyst is an excellent platform to uncover the contentious role of the metal–metal oxideinterface because the alloyed transition metal can coexist with the Pt surface layer in the formof an oxidized species on the bimetal surface during catalytic reactions. In addition, mixedcatalysts that is composed of Pt nanoparticles supported on metal oxide supports have beenmainly utilized as the model catalysts for elucidation of SMSI effect.In this talk, I present in-situ observation results of structural modulation on Pt-basedbimetal catalysts and mixed catalysts. We utilized PtNi, and PtCo that includes both of singlecrystal and nanoparticle surfaces as model catalysts. Ambient-pressure scanning tunnelingmicroscopy and X-ray photoelectron spectroscopy measurements under CO oxidationconditions show that the coexistence of Pt and metal oxide leads to the enhancement of catalyticactivity, indicating these metal-oxide interfaces provide more efficient reaction path for COoxidation. As a mixed catalysts, we prepared the model catalysts composed of Pt nanoparticlesand the mesoporous cobalt oxide that shows the enhancement of catalytic activity. Combiningother in-situ techniques including environmental transmission electron microscopy, hotelectron measurement, and in-situ diffuse reflectance FT-IR spectroscopy, we conclude thatthe interface between Pt nanoparticles and oxide is the key factor that gives rise to SMSI effect.Our results show that the presence of metal-oxide interfaces and the charge transfer throughthe interface have significant implications in the surface reaction of heterogeneous catalysis.
- 2021년 5월 6일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-05-04
- WRITER : 화학과
- HIT : 1498
Exploiting Photofunctional Transition Metal Complexes

body{font-family :돋움; color : #000000; font-size : 10pt; margin: 7px 7px 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} 세미나가 이번주 목요일(4월 29일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.===============================================================================제 목 : Exploiting Photofunctional Transition Metal Complexes연 사 : 유영민 교수(이화여자대학교)일 시 : 2021년 4월 29일(목) 오후 4시 30분장 소 : 화학관 1층 330118호* 온/오프라인 동시에 진행됩니다.<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem ================================================================================Exploiting Photofunctional Transition Metal ComplexesYoungmin YouDivision of Chemical Engineering and Materials Science, Ewha Womans Universityodds2@ewha.ac.kr An excited state refers to the transient state that conveys energies greater than that of a state in equilibrium with surrounding media. Among various forms of excited states, electronically excited states are of significant importance because they elicit diverse functions. A promising, yet underdeveloped, approach to access excited states is to employ molecules. This approach benefits from the accumulated knowledge of the design and preparation of molecules. The versatility in molecular structures provides tremendous opportunities to create and improve function. My group initiated research to explore excited-state molecules. Prime interest is to control and utilize processes involving spin flip during electronic transition (e.g., phosphorescence) or in the excited state (e.g., intersystem crossing). We employ chemistries to approach the challenges. Specifically, we have developed novel classes of molecular emitters, triplet sensitizers, photoredox catalysts, and bioprobes, with combined use of quantum chemistry, organic/organometallic/polymer synthesis techniques, and photophysical and electrochemical methods. Such integrated research has been fruitful. A novel molecular mechanism was devised, which enabled very high quantum yields for photoelectrochemical functionalization of drugs through cycling of both photon and electron. As another example, we established n-p* fluorophore molecules that are capable of harnessing triplet exciton into singlet manifolds for high efficiency fluorescence emission. We also investigated molecular origin for short operation time of blue-phosphorescent organic light-emitting devices. Our mechanistic study revealed that reactive radical ion species could be generated even under balanced carrier injection, and that exciton-mediated intermolecular electron transfer between a host and a dopant was responsible for the generation of such species. Finally, we continue to extend our understanding to application into biological systems. Probes for use in metalloneurochemistry have been developed. In addition, biological utility of photosensitizers that generate singlet oxygen (1O2) has been successfully demonstrated.
- 2021년 4월 29일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-04-26
- WRITER : 화학과
- HIT : 1560
양전자 소멸 분광을 이용한 소재 결함 분석

세미나가 이번주 목요일(4월 22일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : 양전자 소멸 분광을 이용한 소재 결함 분석연 사 : 이재기 박사(한국원자력연구원)일 시 : 2021년 4월 22일(목) 오후 4시 30분<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem================================================================================ body{font-family :돋움; color : #000000; font-size : 10pt; margin: 7px 7px 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} 양전자 소멸 분광을 이용한 소재 결함 분석 한국원자력연구원 선임연구원 이재기 양전자 소멸 수명 분광(PALS, positron annihilation lifetime spectroscopy)은 비파괴적으로 원자 단위의 결함 정보를 얻을 수 있는 분석법이다. 재료에 입사된 양전자는 원자 결함 주변의 전자와 높은 확률로 소멸하여 한 쌍의 감마선을 방출하는데, 소멸하기 전까지 수백 피코초에서 수 나노초 정도 증가하는 양전자의 수명을 측정하면 재료 결함의 특성을 분석할 수 있다. 재료의 원자 결함 크기가 크고 많을수록 양전자의 평균 수명이 증가하여, 다양한 재료의 결함 특성 분석에 사용되고 있다. 양전자 소멸 분광을 이용하면 금속 합금 구조 변화, 고분자 소재 공공(free volume) 크기 측정, 반도체 결함 등을 분석할 수 있으며, 최근에는 경량 소재 열처리 별 결함 관찰, 배터리 분리막 소재 공공 측정 등 첨단 소재에 적용되고 있다. 본 세미나에서는 한국원자력연구원에서 보유하고 있는 양전자 소멸 분광 장치의 원리 및 활용에 대해 소개하고자 한다. 더 나아가 고분자, 화합물 분석 등 최신 연구 동향에 대해 소개하고, 양전자 소멸 분광을 이용한 소재 분석 분야의 공동 연구 주제에 대해 논의하고자 한다.
- 2021년 4월 22일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-04-19
- WRITER : 화학과
- HIT : 1623
Dynamic electrochemical interface in oxygen evolution reaction

body{font-family :돋움; color : #000000; font-size : 10pt; margin: 7px 7px 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} 세미나가 이번주 금요일(4월 16일) 오후 5시에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : Dynamic electrochemical interface in oxygen evolution reaction연 사 : 정동영 교수(GIST)일 시 : 2021년 4월 16일(금) 오후 5시<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem ================================================================================Dynamic electrochemical interface in oxygen evolution reaction Dong Young ChungDepartment of Chemistry, Gwangju Institute of Science Technology (GIST)123 Cheomdangwagi-ro, Buk-gu, Gwangju, 61005, Koreachungdy@gist.ac.kr The electrochemical reaction takes place at the electrochemical interface and at the junction between the electrode and the electrolyte. The efficiency of energy conversion and energy storage is almost entirely determined by the rate of transfer of interfacial charges based on basic electrochemistry and the electrochemical interfacial properties that control the various types of interactions. However, the importance of the electrochemical interface, which is usually the electrode/electrolyte interface, is often neglected, and most studies focus the electrode itself or the electrolyte as a separate field, hindering its application to electrochemical energy conversion and storage devices. Given that overall electrochemical performance is determined by how understand and design the interface, it is important to understand and design an electrochemical interface as the basic unit of electrochemistry. Here I describe the dynamic electrochemical interface in the oxygen evolution reaction. Unlike the conventional 'static' interface, the properties of the 'dynamic' interface are determined by the continuous interaction between electrolyte and electrode, and based on this, it opens the possibility of a new system that can overcome the existing thermodynamic limitation on electrode.
- 2021년 4월 16일(금) 오후 5시
- Webex
- POSTED DATE : 2021-04-15
- WRITER : 화학과
- HIT : 1520
사이언스 분야 인공지능 응용 및 미래 인공지능 기술

세미나가 이번주 목요일(4월 15일) 오후 4시 30분에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : 사이언스 분야 인공지능 응용 및 미래 인공지능 기술 연 사 : 김성진 박사(LG)일 시 : 2021년 4월 15일(목) 오후 4시 30분<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem ================================================================================제목: 사이언스 분야 인공지능 응용 및 미래 인공지능 기술인공지능은 머쉰러닝에서 딥러닝으로 발전하면서 점점 고도화되고 있고 어플리케이션도 확장되고 있다. 엔지니어링 분야 뿐 아니라 과학 분야에서도 활용이 늘어나고 있다. 인공지능은 신약이나 에너지 소재 개발에도 활용될 수 있다. 신약이나 에너지 소재의 특징을 미리 에측함으로 실험을 효율적으로 할 수 있도록 만든다. 100만개의 후보 실험 소재가 있다면 인공지능을 통해 효율이나 효능이 높은 10여개만 스키리닝해 낼 수 있다. 그런 기술은 신약과 신소재 개발에 혁신을 가져올 것이다. 이런 인공지능 기술은 점점 발전하고 있다. 그 중에 한가지가 엣지 인공지능이다. 클라우드 방식을 넘어 엣지 부분에도 인공지능 칩이 적용됨으로 또 한차례 혁신이 예상된다. 더불어 인공지능의 계산 속도를 획기적으로 증대시켜 거대한 문제에 대한 실시간 결정이 가능해질 후보 기술로 양자인공지능 기술이 떠오르고 있다.
- 2021년 4월 15일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-04-15
- WRITER : 화학과
- HIT : 1288
Bruker NMR Experiments and Applications; Real-life NMR Analysis for Graduate Students

body{font-family :돋움; color : #000000; font-size : 10pt; margin: 7px 7px 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} body{font-family :굴림; color : #000000; font-size : 10pt; margin : 7px 0 0 7px;} p,li{line-height:1.2; word-wrap: break-word; margin-top:0; margin-bottom:0;} body{overflow:auto;}.NamoSE_layoutlock_show { word-break: break-all;} 세미나가 이번주 목요일(4월 1일) 오후 2시에 개최됩니다.많은 참여 부탁드립니다.감사합니다.===============================================================================제 목 : Bruker NMR Experiments and Applications; Real-life NMR Analysis for Graduate Students연 사 : 박은석 부장(브루커코리아)일 시 : 2021년 4월 1일(목) 오후 2시<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem ================================================================================ Bruker NMR Experiments and Applications; Real-life NMR Analysis for Graduate Students NMR 실험법과 응용에 대한 세미나로 1D NMR, 2D Homo NMR(COSY, TOCSY, HMBC, NOESY, ROESY), 2D Hetero NMR(HSQC, HMQC)에 대한 간단한 이론에 대해 설명한다. 또한 최근 Bruker에서 제공하는 solution software를 소개하고, NMR 로 적용할 수 있는 응용분야를 설명한다.
- 2021년 4월 1일(목) 오후 2시
- Webex
- POSTED DATE : 2021-03-31
- WRITER : 화학과
- HIT : 1359
Scalable quantum simulation of molecular vibronic spectra with trapped ions

세미나가 이번주 목요일(3월 18일)에 개최됩니다.온라인으로 진행되는 세미나로, 많은 참여 부탁드립니다.감사합니다.=======================================================================제 목 : Scalable quantum simulation of molecular vibronic spectra with trapped ions연 사 : 김기환 교수(중국 칭화대학교)일 시 : 2021년 3월 18일(목) 오후 4시 30분<Webex참여>방번호: 170 974 2739링크: https://skku-ict.webex.com/meet/chem======================================================================== Scalable quantum simulation of molecular vibronic spectra with trapped ionsKihwan KimTsinghua UniversityQuantum simulation of quantum chemistry is considered as one of the most promising practical applications of quantum devices. The trapped-ion system is a leading platform for the construction of universal quantum computers, offering long coherence time, high-fidelity quantum operations, and reliable state preparation and measurement. Vibrational degrees of freedom in trapped-ion systems have recently been gaining attention as a quantum resource, beyond the role as a mediator for entangling quantum operations on internal degrees of freedom, because of the large available Hilbert space. In this seminar, we will discuss how to use trapped ions to perform scalable simulation of molecular vibronic spectra [1,2]. In particular, recently we have renovated the trapped ion system to accommodate more vibrational modes with up to five ions and demonstrated the scalable phonon network [3]. We will discuss how to use the phonon network to realize scalable simulation of vibronic spectroscopy.[1] J. Huh, et al., Boson sampling for molecular vi-bronic spectra, Nature Photon.9, 615 (2015)[2] Y. Shen, et al., Quantum optical emulation of molecular vibronic spectroscopy using a trapped-ion device, Chem.Sci.9, 836 (2018).
- 2021년 3월 18일(목) 오후 4시 30분
- Webex
- POSTED DATE : 2021-03-15
- WRITER : 화학과
- HIT : 1287