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정렬번호 48 
메인 제목 Hot Electron Collaboration with Prof. Lee SiWoo (Nano Letters) was publicized 
메인 소개 내용 Hot Electron Collaboration with Prof. Lee SiWoo (Nano Letters) was publicized 

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Si Woo Lee, Heeyoung Kim, and Jeong Young Park*

How Hot Electron Generation at the Solid–Liquid Interface Is Different from the Solid–Gas Interface

Nano Letters (in press, 2023)

 

한국교원대학교 화학교육과 이시우 교수팀이 KAIST 화학과 박정영 교수팀과 함께 고체-액체 계면에서의 핫전자 거동을 실험적으로 최초로 관찰하는 데에 성공을 했다.
 핫전자(hot electron)는 높은 에너지를 가지는 전자로 일반적으로 펨토초(1000조 분의 1) 동안 1~3eV의 에너지를 방출하며, 수명이 굉장히 짧기 때문에 직접적으로 검출하는 데에 어려운 점이 있어 왔다.
 본 연구진은 촉매에서의 표면화학 반응에 의해 여기(excite) 되는 핫전자를 금속-반도체 쇼트키(Schottky) 나노소자를 이용하여 실시간으로 검출하였다.
 이는 금속-반도체 소자에서의 쇼트키 배리어를 이용하는 것인데, 이 퍼텐셜 배리어를 이용하여 높은 에너지를 가지는 전자만을 선택적으로 직접 전류로(chemicurrent) 검출할 수 있었다.
 특히, 기존에는 불가능했었던 액상 반응에서의 핫전자의 이동(hot electron transfer)을 직접 검출하여 기상 반응에서의 결과와 비교를 하는 것에 성공을 했고, 고체-기체 계면에 비해 고체-액체 계면에서 핫전자의 이동이 100배 가량 증가한다는 점을 처음으로 규명하였다
 한국교원대학교 이시우 교수는 “이번 연구성과는 액상 반응에서의 핫전자의 여기가 증폭된다는 점을 실험적으로 직접 밝혀 표면화학 반응에서의 에너지 변환 메커니즘을 규명할 수 있는 데 큰 의의가 있다”고 말했다.
 KAIST 박정영 교수는 “기존에는 불가능에 가까웠던 고체-액체 계면에서의 핫전자 거동 관찰은 표면과학 분야의 큰 진전이며 추후 촉매전자학의 개척을 위한 발판이 될 것이다”라며 “본 결과는 차세대 에너지 소자, 반도체 소자개발 및 핫전자 기반 광전기화학 촉매 등의 응용연구를 가속화할 것이다”라고 말했다
 본 연구결과는 “How Hot Electron Generation at the SolidLiquid Interface Is Different from the SolidGas Interface"으로 2023 3 17일 자로 미국 화학회(American Chemical Society)에서 출판하는 나노 과학 분야에서의 최고 수준 학술지인 Nano Letters에 게재되었으며, 1저자는 한국교원대학교 이시우 교수이며, KAIST 박정영 교수가 교신저자이다.

 

차세대에너지·반도체소자 개발 연구 가속화  (2023. 3. 20).

 

고체-액체 계면에서의 표면화학 반응에 의한 핫전자 여기의 증폭을세계 최초 규명하여 Nano Letters 게재 교수신문 (2023. 3. 20).

 

번호 제목 글쓴이 날짜 조회 수
공지 Prof. Park received Award from Ministry of Science and ICT [과학기술정보통신부 장관 표창, 융합연구개발 부분] [Nov 09, 2023] 관리자 2023.12.13 610
공지 Commentary Lectures on 2023 Novel Chemistry Prize Winning Achievement [Nov 1, 2023] 관리자 2023.12.13 609
공지 Dooho’s Small Paper was selected as Back Cover of the Issue 관리자 2023.12.13 570
공지 Prof. Park gave a Lecture on "KAIST Advanced Institute for Science-X" about seeing atoms 관리자 2023.09.12 121
공지 Nature Comm paper about CO2 Dissociation on Cu(997) was publicized. 관리자 2023.09.12 122
공지 Professor Park has recently been appointed as the Associate Editor for "Surface Science and Technology", a newly established journal published by Springer. 관리자 2023.05.30 752
공지 SCALE lab members attended the 19th Korea-Japan Symposium on Catalysis (May 15-17, 2023), and Kyoungjae won Oral Presentation Award. 관리자 2023.05.30 723
공지 The research article on hot electron phenomena achieved recognition as the Issue Cover in Nano Letters. 관리자 2023.05.30 957
» Hot Electron Collaboration with Prof. Lee SiWoo (Nano Letters) was publicized 관리자 2023.04.03 1121
공지 Professor Park gave a talk at the Great Scholar Decisions (2023. 3. 10). 관리자 2023.04.03 1105
공지 Public Article about Chemistry and Application of Quasicrystal by Prof. Park 관리자 2023.04.03 1030
공지 SCALE lab members attended Korean Society of Surface Analysis (Daejeon, Nov 22-24) 관리자 2022.11.28 1468
공지 Prof. Park was elected to be the member of Korean Academy of Science and Technology (2023). 관리자 2022.11.28 1283
공지 SCALE lab members attended AVS 68th International Symposium & Exhibition (Pittsburgh, PA USA, November 6-11, 2022) 관리자 2022.11.28 1328
공지 SCALE lab members attended Korean Chemical Society Meeting (Gyeongju, Oct 19-21) 관리자 2022.11.28 1278
공지 The talk entitled “Atomic Scale Friction Properties of Two-dimensional Intercalated Water Layers” was given at Korean Tribology Society Meeting and Best presentation award was given. 관리자 2022.11.28 1678
공지 Dr. Heeyoung Kim’s work was published in The Journal of Chemical Physics and selected as Issue Cover 관리자 2022.09.14 1363
공지 Dr. Woosuk Choi’s work (in collaboration with Prof. Ryong Ryoo) was published in Carbon and selected as Issue Cover 관리자 2022.04.18 3164
공지 Group members got poster awards from 18JKSC, PAL user meeting, and IWOX-XIII 관리자 2022.02.15 4980
공지 Yongman Kim’s paper has been selected as the Back Cover of Advanced Materials Interfaces 관리자 2022.02.15 2177
공지 Prof. Park chaired the 13th International Workshop on Oxide Surfaces (IWOX-XIII). 관리자 2022.02.15 1671
공지 the 13th International Workshop on Oxide Surfaces (IWOX-XIII) will be held in Pyeongchang, Republic of Korea 관리자 2021.05.17 5538
공지 “Atomic scale tackling of greenhouse gas” highlighted by KAIST Compass 관리자 2021.05.17 5696
공지 “Plasmonic hot hole driven water splitting” work has been highlighted 관리자 2021.05.17 6222
공지 Editor of Nature Comm featured our article, entitled “How Rh surface breaks CO2 molecules under ambient pressure” 관리자 2021.03.08 2400
공지 Dr. Siwoo Lee’s hot electron work was introduced in media 관리자 2021.03.08 2941
공지 Outside Front Cover was selected for Hanseul’s Catalysis Science & Technology paper 관리자 2021.03.08 2900
공지 Park Yujin was selected as one of recipient of Posco Science Fellowship in 2020 관리자 2020.11.16 7837
공지 Hot hole measurement (published in Advanced Science) have been introduced in news media 관리자 2020.11.16 40643
공지 Ambient pressure studies on CO2 dissociation (published in Nat Comm) have been introduced in news media 관리자 2020.11.16 9561
공지 Dr. Mondal’s Advanced Functional Materials paper was selected as Inside Front Cover. 관리자 2020.01.27 21749
공지 Prof. Park gave an on-line talk in MRS Webinar Series for the special issue about “ 관리자 2020.01.27 22300
공지 Dr. Sunyoung Oh’s paper will appear as a Feature Article in JCP in a special topic on 관리자 2020.01.27 29149
공지 Advanced Functional Materials paper (in collaboration with Prof. Jong Hoon Jung in Inha Univ) was selected as Front Cover. 관리자 2019.11.18 28187
공지 Hot electron research of SCALE laboratory was highlighted in Electronic Newspaper 관리자 2019.11.18 19969
공지 Two-dimensional FeS2 encapsulated Au was selected as the Inside Cover 관리자 2019.09.27 24854
공지 IBS-RIKEN Joint Symposium [Oct 17-18] 관리자 2019.09.27 30311
공지 Perovskite-based hot electron plasmonic nanodiode was developed. The higher hot electron flux and longer lifetime were observed on this photovoltaic device. 관리자 2019.08.27 37541
공지 IBS-KAIST Symposium on Operando Surface Science and Catalysis 관리자 2019.03.27 39781
공지 Direct Imaging of Surface Plasmon-driven Hot Electron 관리자 2019.01.23 35876
공지 Ambient pressure AFM was developed in SCALE lab 관리자 2018.10.29 40773
공지 Professor Park wrote the Perspective Article in Science regarding self-cleaning on TiO2 관리자 2018.10.29 38522
공지 Highlight article about ambient pressure STM was introduced in Chemistry World (Korean) 관리자 2018.10.29 47850
공지 Kalyan and Hyosun’s ChemComm paper was selected as Inside Cover 관리자 2018.08.17 42165
공지 Sunyoung’s work was selected as Inside Front Cover of ChemComm 관리자 2018.08.17 49397
공지 Visualizing Chemical Reaction on Bimetal Surfaces 관리자 2018.08.17 46113
공지 Nature Communications paper was highlighted in Nature Research Chemistry Community 관리자 2018.06.08 55726
공지 Front Cover Selected in Nanoscale 관리자 2018.06.08 71524
공지 The Fifth Symposium of Center for Nanomaterials and Chemical Reactions 관리자 2018.05.14 46079
공지 Top 100 Scientific Reports Chemistry papers in 2017 관리자 2018.04.08 61093
공지 Dr. Joong Il Jake Choi received the first prize at Best Poster Awards of ISEST 2018. 관리자 2018.01.22 65658
공지 Dr. Hyunsoo Lee was selected as one of the winners of 2017 IBS Outstanding Researcher Awards. 관리자 2017.12.22 60558
공지 IBS CNCR Symposium : Surface Chemistry and Catalysis 관리자 2017.10.25 64122
공지 Review article about “catalytronics” was published. 관리자 2017.09.11 73067
공지 EEWS 2016 Workshop was introduced in ACS Energy Letters 관리자 2017.02.17 84077
공지 Hot electron work was selected as KAIST Top 10 Research Achievements 관리자 2017.02.17 77503
공지 Hyosun Lee and Changwhan Lee got Samsung Humantech Award 관리자 2017.02.07 71206
공지 Graphene/Pt(111) STM image was shown at Art in Science during IBS Symposium 관리자 2016.11.27 78958
공지 Friction on graphene work was highlighted in YTN Science Prime 관리자 2016.10.31 72774
공지 IBS Symposium on “Understanding photocatalytic materials at the atomic level” was held on July 14 관리자 2016.09.12 70929
공지 SCALE group attended IVC-20 conference in Busan 관리자 2016.09.12 80144
공지 Hot electrons detected at solid-liquid interfaces (Sciencedaily, YTN, and other media) 관리자 2016.07.10 74519
공지 Angewandte Chemie paper was selected as the Front Cover 관리자 2016.07.10 74832
공지 Dr. Sun Mi Kim has been awarded the Young Scientist Prize of the 16th International Congress on Catalysis (ICC 16) 관리자 2016.04.29 106002
공지 Best Poster Award at ISFM 2016 관리자 2016.03.07 78187
공지 Issue Cover Selected in Chemical Physics Letters 관리자 2016.03.07 78226
공지 박정영교수팀, ‘꿈의 신소재’ 그래핀 통해 새로운 핫전자 촉매센서 개발 관리자 2016.03.07 79080
공지 Advanced Materials Interfaces Front Cover Selected 관리자 2016.01.15 105357
공지 First group result of ambient pressure STM was published in JACS 관리자 2016.01.15 77030
공지 Science talk in the Library at Sejong Library 관리자 2015.11.23 81031
공지 Hot electron work was highlighted in IBS Research 관리자 2015.11.23 90816
공지 SCALE lab welcomes new group members 관리자 2015.09.08 80950
공지 Hot electron work was selected as KAIST breakthroughs 관리자 2015.09.08 79347
공지 Six Most Downloaded Catalysis Books in 2014 관리자 2015.07.05 82914
공지 Editorial Board of Scientific Reports 관리자 2015.05.18 83939
공지 Nanoporous Au work was highlighted in YTN 관리자 2015.05.18 81884
공지 Chemical Reviews Issue Cover selected 관리자 2015.04.20 89031
공지 SCALE lab welcomes four new members 관리자 2015.04.18 83113
공지 Surface structure can tailor adhesion [Nanotechweb Technology Update] 관리자 2015.03.10 83471
공지 Surprising current domains of misoriented graphene on graphite [Nanotechweb LAB TALK] 관리자 2015.03.03 80814
공지 Chemicurrent work by Hyosun was highlighted in media 관리자 2015.02.22 83897
공지 Angewandte Chemie paper was selected as Frontispiece 관리자 2015.02.12 80536
공지 Nanotechnology paper was selected as Cover 관리자 2015.02.12 77793
공지 KAIST Times highlighted research of SCALE laboratory 관리자 2014.12.15 74566
공지 ENGE Poster Awards (Kamran and SongYi) 관리자 2014.11.22 81781
공지 Prof. Park gave a public lecture at library 관리자 2014.10.31 76070
17 RHK Tech Image of the Month (March, 2013) Selected file 관리자 2014.06.15 7993
16 New members joined SCALE lab 관리자 2014.06.15 8705
15 금요일에 과학터치 강연 [이상한 전자를 이용한 에너지소자 만들기] 관리자 2014.06.15 7738
14 2011 ~ 2012 KAIST 대표연구 우수성과 10선 선정 관리자 2014.06.15 10238
13 한국연구재단 Webzine (2012, December) 나노촉매의 활성도를 효과적으로 높일 수 있는 원리 규명 관리자 2014.06.15 7905
12 KAIST News "Principle behind increasing the catalytic property of nanocatalysts proven" 관리자 2014.06.15 7914
11 New members (Jinheui Hwang and Fabien Rose) joined the SCALE lab 관리자 2014.06.15 7548
10 Fluorinated graphene work was highlighted in Nature file 관리자 2014.06.15 8365
9 월간 과학과 기술 12월호 "나노촉매의 원자적 규모 제어를 위하여" file 관리자 2014.06.15 8717
8 핫전자 플라즈모닉 태양전지 원천기술 2012년 기초연구 우수성과 선정 file 관리자 2014.06.15 11486
7 핫전자 태양전지 2012 정부연구개발 우수성과 선정 file 관리자 2014.06.15 8311
6 Kamran's paper was accepted to Nano Letters 관리자 2014.06.15 7244
5 불소화된 그래핀의 마찰력 변화에 대한 이론 정립해 - 카이스트 신문 관리자 2014.06.15 8213
4 New members at SCALE lab file 관리자 2014.06.15 9936
3 Best Poster Award in Korean Vacuum Society Meeting (Jan, 2012) was given to Kamran Qadir file 관리자 2014.06.15 8977
2 Dahee Park of SCALE lab and teammates won the student idea festival (Jan 6, 2012) file 관리자 2014.06.15 8346
1 Physics and Modern Technology (물리학과 첨단기술) Special Issue -Jan/ Feb 2012 file 관리자 2014.06.15 13123