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정렬번호 19 
메인 제목 Hot electron research of SCALE laboratory was highlighted in Electronic Newspaper 
메인 소개 내용 Hot electron research of SCALE laboratory was highlighted in Electronic Newspaper 

Hot electron research of SCALE laboratory was highlighted in Electronic Newspaper

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[IBS 소재·부품 연구 성과]<1>핫전자로 태양전지·촉매 효율 강화

http://www.etnews.com/20191118000175


일본의 수출규제조치로 소재·부품 분야 국산화 노력이 계속되는 가운데 국내 유일 기초과학 연구개발(R&D) 기관 기초과학연구원(IBS)이 새롭게 주목받고 있다. 그동안 기술 산업화와 다소 동떨어진 연구기관이라는 평가를 받아온 IBS가 뛰어난 연구 성과를 기반으로 실제 산업 분야 난제 해결에 기여함으로써 이 같은 오해를 불식시키고 있다. 소재·부품 산업을 혁신하는 IBS 연구 성공 사례를 2회에 걸쳐 그려본다.

지난 2012년 개원해 다양한 연구를 수행해온 IBS가 최근 중요성이 커진 소재·부품 분야에서 혁신 성과를 내놓고 있다. 대표 사례가 지난 8월 산하 나노물질 및 화학반응 연구단의 '핫전자' 활용 연구다. 연구단은 기초과학기술 영역에 있는 핫전자를 활용, 효율을 높인 태양전지 개발에 성공했다.


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<IBS가 개발한 페로브스카이트 기반 핫전자 태양전지(IBS제공)>


핫전자는 빛 에너지를 흡수했을 때 금속 표면에 생성되는 고에너지 전자다. 에너지 준위가 높아 활성도가 높다. 그동안은 실제 활용보다는 차세대 기술로 여겨지던 분야다. 포집해 활용하기가 극히 어려웠기 때문이다. 핫전자는 수 피코초(1조분의 1)만에 사라져 버리고 확산거리도 수십 나노미터()에 불과하다.

연구단은 핫전자 수명과 확산거리를 대폭 늘리는 방안을 찾아내 실제 태양전지에 적용하는데 성공했다. 빛을 잘 흡수하는 페로브스카이트 소재를 접목하는 새로운 시도에 나선 결과다. 페로브스카이트 소재를 접목했을 때 핫전자 수명이 기존보다 22배 오래 유지됐다.

이 결과로 빛이 전력화 되는 효율도 높일 수 있다. 이론상으로는 기존 한계를 뛰어넘어 태양전지 효율을 66%까지 끌어올리는 핵심 기반이 될 것이라는 예측도 내놓고 있다.


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<IBS가 개발한 페로브스카이트 기반 핫전자 태양전지 구조 (IBS 제공)>

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공지 SCALE lab members attended Korean Society of Surface Analysis (Daejeon, Nov 22-24) 관리자 2022.11.28 7
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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 1555
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공지 Yongman Kim’s paper has been selected as the Back Cover of Advanced Materials Interfaces 관리자 2022.02.15 668
공지 Prof. Park chaired the 13th International Workshop on Oxide Surfaces (IWOX-XIII). 관리자 2022.02.15 412
공지 the 13th International Workshop on Oxide Surfaces (IWOX-XIII) will be held in Pyeongchang, Republic of Korea 관리자 2021.05.17 3908
공지 “Atomic scale tackling of greenhouse gas” highlighted by KAIST Compass 관리자 2021.05.17 3589
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공지 Editor of Nature Comm featured our article, entitled “How Rh surface breaks CO2 molecules under ambient pressure” 관리자 2021.03.08 1148
공지 Dr. Siwoo Lee’s hot electron work was introduced in media 관리자 2021.03.08 1643
공지 Outside Front Cover was selected for Hanseul’s Catalysis Science & Technology paper 관리자 2021.03.08 1560
공지 Park Yujin was selected as one of recipient of Posco Science Fellowship in 2020 관리자 2020.11.16 6558
공지 Hot hole measurement (published in Advanced Science) have been introduced in news media 관리자 2020.11.16 37796
공지 Ambient pressure studies on CO2 dissociation (published in Nat Comm) have been introduced in news media 관리자 2020.11.16 8285
공지 Dr. Mondal’s Advanced Functional Materials paper was selected as Inside Front Cover. 관리자 2020.01.27 20420
공지 Prof. Park gave an on-line talk in MRS Webinar Series for the special issue about “ 관리자 2020.01.27 21038
공지 Dr. Sunyoung Oh’s paper will appear as a Feature Article in JCP in a special topic on 관리자 2020.01.27 25622
공지 Advanced Functional Materials paper (in collaboration with Prof. Jong Hoon Jung in Inha Univ) was selected as Front Cover. 관리자 2019.11.18 26874
» Hot electron research of SCALE laboratory was highlighted in Electronic Newspaper 관리자 2019.11.18 18696
공지 Two-dimensional FeS2 encapsulated Au was selected as the Inside Cover 관리자 2019.09.27 23618
공지 IBS-RIKEN Joint Symposium [Oct 17-18] 관리자 2019.09.27 29073
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 36322
공지 IBS-KAIST Symposium on Operando Surface Science and Catalysis 관리자 2019.03.27 38502
공지 Direct Imaging of Surface Plasmon-driven Hot Electron 관리자 2019.01.23 34592
공지 Ambient pressure AFM was developed in SCALE lab 관리자 2018.10.29 39463
공지 Professor Park wrote the Perspective Article in Science regarding self-cleaning on TiO2 관리자 2018.10.29 37298
공지 Highlight article about ambient pressure STM was introduced in Chemistry World (Korean) 관리자 2018.10.29 45594
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공지 Front Cover Selected in Nanoscale 관리자 2018.06.08 68317
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공지 Top 100 Scientific Reports Chemistry papers in 2017 관리자 2018.04.08 59785
공지 Dr. Joong Il Jake Choi received the first prize at Best Poster Awards of ISEST 2018. 관리자 2018.01.22 64365
공지 Dr. Hyunsoo Lee was selected as one of the winners of 2017 IBS Outstanding Researcher Awards. 관리자 2017.12.22 59306
공지 IBS CNCR Symposium : Surface Chemistry and Catalysis 관리자 2017.10.25 62879
공지 Review article about “catalytronics” was published. 관리자 2017.09.11 71781
공지 EEWS 2016 Workshop was introduced in ACS Energy Letters 관리자 2017.02.17 80738
공지 Hot electron work was selected as KAIST Top 10 Research Achievements 관리자 2017.02.17 76179
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공지 Best Poster Award at ISFM 2016 관리자 2016.03.07 76710
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9 International Advisory Board of Advanced Materials Interfaces [December 2013] 관리자 2014.06.15 11256
8 October 2013 Tribology and Lubrication Technology - Cutting Edge file 관리자 2014.06.15 8003
7 Book by Prof. Park "Current Trends in Surface Science and Catalysis" has been published file 관리자 2014.06.15 7940
6 SCALE lab was introduced in Physics and High Technology (Korean Physical Society) file 관리자 2014.06.15 7777
5 SCALE Lab joined in Institute for Basic Science file 관리자 2014.06.15 7740
4 Sunmi's poster was selected as "2013 MRS Spring Meeting 'Best Poster' Nominees" file 관리자 2014.06.15 23936
3 Professor Park hosted Science Breakfast in Lindau Meeting (with Prof. Ertl) file 관리자 2014.06.15 8621
2 2013년 한국진공학회 으뜸포스터상 수상 (이현수, 이효선, 황진희) 관리자 2014.06.15 10532
1 한국물리학회 최우수발표상 (황진희) file 관리자 2014.06.15 18535