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■ 외부초청 세미나

일시: 07.7.18(수) 11:00
연사: 차승일 박사 (NIMS)
제목: Rapid & Controlled Fabrication Process for Fullerene 1-D Crystals


Considering the current application of fullerenes in the field of organic semiconductor devices, the highly crystalline or single crystal fullerene nanostructures with controlled shape and size contains some breakthrough forimproved efficiency.Recently, fullerene 1-D nanostructures, including nanowhiskers and nanotubes, become attractive kind of materials since the development of liquid-liquid interface precipitation (LLIP) process and several published results reports the modification of LLIP process in order to obtain fullerene 1-D nanostructures more rapidly. The LLIP process has critical advantage; the fabrication of highly crystalline, even single crystal, fullerene 1-D nanostructures with simple apparatus. However, thefabrication fullerene 1-D structures by LLIP process requires long process time from one day to several days. In order to overcome this drawback, a modified process from conventional LLIP process is suggested. In the modified LLIP process, the nucleation step and growth step were divided. For the nucleation step, saturated fullerene solution is mixed with small amount of alcohols such as 2-propanol or ethanol. For the controlled growth step, the fullerenes in the nucleated solution are precipitated by addition of alcohol, which is injected to the bottom of the solution with controlled flow rate. In this modified process, the shape of the precipitated fullerene crystals is critically dependent on the nucleation steps and the size is dependent on the precipitation rate. By combination of proper nucleation step and growth rate, a well defined fullerene 1-D structures, of 200~500nm width and of hundreds m length can be fabricated within two hours. In addition, the fabricated fullerene 1-D structures can be formed into the free-standing felt which is remarkably mechanical stable, flexible and even foldable.

List of Articles
번호 제목 날짜
101 한미 나노기술 공동연구센터 협력 세미나 /김문재 교수, UT Dallas file 2017.07.07
100 오스트리아-한국 나노기술 국제협력을 위한 공동 세미나 개최 file 2019.06.22
99 [제 3회 KINC 특별 초청 강연 안내]2017.10.23(월) 16시 이조원 한미 나노포럼 조직위원장 file 2017.10.16
98 [Special Invited Seminar] Status and Prospect on Development of Nanomaterials for Supercapacitor file 2014.02.13
97 [Special Invited Seminar] Prof. Paras N. Prasad (State University of New York at Buffalo) file 2014.02.17
96 [KI목요세미나] 정희태 교수(KAIST, 생명화학공학과) file 2011.09.15
95 [KI목요세미나] 김봉수 교수(KAIST 화학과) file 2011.03.14
94 [KINC 특별 세미나 안내]2016.04.04 16:00 김학민 (한국과학기술원 상임감사) file 2016.11.07
93 [KINC 초청세미나 안내]2014.10.13 11시, 엄태식 박사(University of Washington) 2014.10.13
92 [KINC 초청세미나 안내] 2015.02.02(월)16:00, 이재광 박사(Oak Ridge National Laboratory) file 2015.02.04
91 [KINC 초청 세미나 안내]2015.10.29 16:00 조지아텍 Zhiqun Lin 교수 file 2015.10.27
90 [KINC 초청 세미나 안내] 2015.1.21(수) 16시, 윤종승 교수(Southern California 대학) file 2015.01.12
89 [KINC Seminar] 나노융합산업 발전전략- 박기영 박사 (지식경제부 바이오나노과장) 2009.02.26
88 [KINC Invited Seminar] 홍영기 박사(University of Michigan) 2013.12.27
87 [KINC Invited Seminar] 이재광 박사 (Vanderbilt University) file 2012.06.07
86 [KINC Invited Seminar] 이민백 박사 (Georgia Institute of Technology) 2011.06.08
85 [KINC Invited Seminar] 이건도 연구교수(서울대 재료공학부) file 2012.05.07
84 [KINC Invited Seminar] 박 철 박사( National Institute of Aerospace (NIA)) file 2013.12.27
83 [KINC Invited Seminar] 김종복 박사(Princeton University) file 2012.04.25
82 [KINC Invited Seminar] 김명길 박사(Stanford University) file 2013.08.19
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