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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 Professor Park has recently been appointed as the Associate Editor for "Surface Science and Technology", a newly established journal published by Springer. 관리자 2023.05.30 150
공지 SCALE lab members attended the 19th Korea-Japan Symposium on Catalysis (May 15-17, 2023), and Kyoungjae won Oral Presentation Award. 관리자 2023.05.30 104
공지 The research article on hot electron phenomena achieved recognition as the Issue Cover in Nano Letters. 관리자 2023.05.30 257
» Hot Electron Collaboration with Prof. Lee SiWoo (Nano Letters) was publicized 관리자 2023.04.03 445
공지 Professor Park gave a talk at the Great Scholar Decisions (2023. 3. 10). 관리자 2023.04.03 422
공지 Public Article about Chemistry and Application of Quasicrystal by Prof. Park 관리자 2023.04.03 388
공지 SCALE lab members attended Korean Society of Surface Analysis (Daejeon, Nov 22-24) 관리자 2022.11.28 700
공지 Prof. Park was elected to be the member of Korean Academy of Science and Technology (2023). 관리자 2022.11.28 642
공지 SCALE lab members attended AVS 68th International Symposium & Exhibition (Pittsburgh, PA USA, November 6-11, 2022) 관리자 2022.11.28 652
공지 SCALE lab members attended Korean Chemical Society Meeting (Gyeongju, Oct 19-21) 관리자 2022.11.28 608
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 2022.11.28 933
공지 Dr. Heeyoung Kim’s work was published in The Journal of Chemical Physics and selected as Issue Cover 관리자 2022.09.14 673
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 2515
공지 Group members got poster awards from 18JKSC, PAL user meeting, and IWOX-XIII 관리자 2022.02.15 4281
공지 Yongman Kim’s paper has been selected as the Back Cover of Advanced Materials Interfaces 관리자 2022.02.15 1541
공지 Prof. Park chaired the 13th International Workshop on Oxide Surfaces (IWOX-XIII). 관리자 2022.02.15 1022
공지 the 13th International Workshop on Oxide Surfaces (IWOX-XIII) will be held in Pyeongchang, Republic of Korea 관리자 2021.05.17 4836
공지 “Atomic scale tackling of greenhouse gas” highlighted by KAIST Compass 관리자 2021.05.17 5013
공지 “Plasmonic hot hole driven water splitting” work has been highlighted 관리자 2021.05.17 5588
공지 Editor of Nature Comm featured our article, entitled “How Rh surface breaks CO2 molecules under ambient pressure” 관리자 2021.03.08 1767
공지 Dr. Siwoo Lee’s hot electron work was introduced in media 관리자 2021.03.08 2264
공지 Outside Front Cover was selected for Hanseul’s Catalysis Science & Technology paper 관리자 2021.03.08 2205
공지 Park Yujin was selected as one of recipient of Posco Science Fellowship in 2020 관리자 2020.11.16 7148
공지 Hot hole measurement (published in Advanced Science) have been introduced in news media 관리자 2020.11.16 39766
공지 Ambient pressure studies on CO2 dissociation (published in Nat Comm) have been introduced in news media 관리자 2020.11.16 8910
공지 Dr. Mondal’s Advanced Functional Materials paper was selected as Inside Front Cover. 관리자 2020.01.27 21068
공지 Prof. Park gave an on-line talk in MRS Webinar Series for the special issue about “ 관리자 2020.01.27 21647
공지 Dr. Sunyoung Oh’s paper will appear as a Feature Article in JCP in a special topic on 관리자 2020.01.27 28304
공지 Advanced Functional Materials paper (in collaboration with Prof. Jong Hoon Jung in Inha Univ) was selected as Front Cover. 관리자 2019.11.18 27516
공지 Hot electron research of SCALE laboratory was highlighted in Electronic Newspaper 관리자 2019.11.18 19312
공지 Two-dimensional FeS2 encapsulated Au was selected as the Inside Cover 관리자 2019.09.27 24217
공지 IBS-RIKEN Joint Symposium [Oct 17-18] 관리자 2019.09.27 29668
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 36920
공지 IBS-KAIST Symposium on Operando Surface Science and Catalysis 관리자 2019.03.27 39106
공지 Direct Imaging of Surface Plasmon-driven Hot Electron 관리자 2019.01.23 35204
공지 Ambient pressure AFM was developed in SCALE lab 관리자 2018.10.29 40151
공지 Professor Park wrote the Perspective Article in Science regarding self-cleaning on TiO2 관리자 2018.10.29 37895
공지 Highlight article about ambient pressure STM was introduced in Chemistry World (Korean) 관리자 2018.10.29 47124
공지 Kalyan and Hyosun’s ChemComm paper was selected as Inside Cover 관리자 2018.08.17 41557
공지 Sunyoung’s work was selected as Inside Front Cover of ChemComm 관리자 2018.08.17 48768
공지 Visualizing Chemical Reaction on Bimetal Surfaces 관리자 2018.08.17 45454
공지 Nature Communications paper was highlighted in Nature Research Chemistry Community 관리자 2018.06.08 55097
공지 Front Cover Selected in Nanoscale 관리자 2018.06.08 70592
공지 The Fifth Symposium of Center for Nanomaterials and Chemical Reactions 관리자 2018.05.14 45447
공지 Top 100 Scientific Reports Chemistry papers in 2017 관리자 2018.04.08 60428
공지 Dr. Joong Il Jake Choi received the first prize at Best Poster Awards of ISEST 2018. 관리자 2018.01.22 64996
공지 Dr. Hyunsoo Lee was selected as one of the winners of 2017 IBS Outstanding Researcher Awards. 관리자 2017.12.22 59920
공지 IBS CNCR Symposium : Surface Chemistry and Catalysis 관리자 2017.10.25 63466
공지 Review article about “catalytronics” was published. 관리자 2017.09.11 72370
공지 EEWS 2016 Workshop was introduced in ACS Energy Letters 관리자 2017.02.17 83326
공지 Hot electron work was selected as KAIST Top 10 Research Achievements 관리자 2017.02.17 76864
공지 Hyosun Lee and Changwhan Lee got Samsung Humantech Award 관리자 2017.02.07 70565
공지 Graphene/Pt(111) STM image was shown at Art in Science during IBS Symposium 관리자 2016.11.27 78275
공지 Friction on graphene work was highlighted in YTN Science Prime 관리자 2016.10.31 72124
공지 IBS Symposium on “Understanding photocatalytic materials at the atomic level” was held on July 14 관리자 2016.09.12 70270
공지 SCALE group attended IVC-20 conference in Busan 관리자 2016.09.12 78865
공지 Hot electrons detected at solid-liquid interfaces (Sciencedaily, YTN, and other media) 관리자 2016.07.10 73844
공지 Angewandte Chemie paper was selected as the Front Cover 관리자 2016.07.10 74157
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 105129
공지 Best Poster Award at ISFM 2016 관리자 2016.03.07 77542
공지 Issue Cover Selected in Chemical Physics Letters 관리자 2016.03.07 77562
공지 박정영교수팀, ‘꿈의 신소재’ 그래핀 통해 새로운 핫전자 촉매센서 개발 관리자 2016.03.07 78422
공지 Advanced Materials Interfaces Front Cover Selected 관리자 2016.01.15 104640
공지 First group result of ambient pressure STM was published in JACS 관리자 2016.01.15 76364
공지 Science talk in the Library at Sejong Library 관리자 2015.11.23 80332
공지 Hot electron work was highlighted in IBS Research 관리자 2015.11.23 90136
공지 SCALE lab welcomes new group members 관리자 2015.09.08 80285
공지 Hot electron work was selected as KAIST breakthroughs 관리자 2015.09.08 78701
공지 Six Most Downloaded Catalysis Books in 2014 관리자 2015.07.05 82248
공지 Editorial Board of Scientific Reports 관리자 2015.05.18 83270
공지 Nanoporous Au work was highlighted in YTN 관리자 2015.05.18 81240
공지 Chemical Reviews Issue Cover selected 관리자 2015.04.20 87917
공지 SCALE lab welcomes four new members 관리자 2015.04.18 82444
공지 Surface structure can tailor adhesion [Nanotechweb Technology Update] 관리자 2015.03.10 82822
공지 Surprising current domains of misoriented graphene on graphite [Nanotechweb LAB TALK] 관리자 2015.03.03 80180
공지 Chemicurrent work by Hyosun was highlighted in media 관리자 2015.02.22 83224
공지 Angewandte Chemie paper was selected as Frontispiece 관리자 2015.02.12 79905
공지 Nanotechnology paper was selected as Cover 관리자 2015.02.12 77074
공지 KAIST Times highlighted research of SCALE laboratory 관리자 2014.12.15 73906
공지 ENGE Poster Awards (Kamran and SongYi) 관리자 2014.11.22 81088
공지 Prof. Park gave a public lecture at library 관리자 2014.10.31 75437
9 Steam Wallet Hack 관리자 2014.06.15 8351
8 Prof. Park received Monthly Scientist Award from Daejeon City file 관리자 2014.06.15 7344
7 August 2011 관리자 2014.06.15 7906
6 July 2011 관리자 2014.06.15 7056
5 June 2011 관리자 2014.06.15 7856
4 May 2011 관리자 2014.06.15 7709
3 April 2011 관리자 2014.06.15 7151
2 Feburay-March 2011 관리자 2014.06.15 7408
1 January 2011 관리자 2014.06.15 7777