消息來源:原分所
截止日期:2013-04-10
IAMS Lecture Announcement 中研院原分所演講公告
Title: Growth of High Crystalline, Single-Layer Hexagonal Boron Nitride on Recyclable Platinum Foil
Speaker: Prof. Hyeon Suk Shin (Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology, Korea)
Time: 11 AM~12 PM, April 10th (Wednesday)
Place: C.T. Chang Memorial Hall (張昭鼎講堂 臺大校園內)
Cantact: Dr. Lain-Jong Li 李連忠博士
Abstract:
Hexagonal boron nitride (h-BN) is gaining significant attention as a two-dimensional dielectric material, along with graphene and other such materials. Herein, we demonstrate the growth of highly crystalline, single-layer h-BN on Pt foil through a low-pressure chemical vapor deposition method that allowed h-BN to be grown over a wide area (8 × 25 mm2). An electrochemical bubbling-based method was used to transfer the grown h-BN layer from the Pt foil onto an arbitrary substrate. This allowed the Pt foil, which was not consumed during the process, to be recycled repeatedly. The UV-visible absorption spectrum of the single-layer h-BN suggested an optical band gap of 6.06 eV, while a high-resolution transmission electron microscopy image of the same showed the presence of distinct hexagonal arrays of B and N atoms, which were indicative of the highly crystalline nature and single-atom thickness of the h-BN layer. This method of growing single-layer h-BN over large areas was also compatible with use of a sapphire substrate.
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Title: Chemistry inside the cell as seen by Raman microspectroscopy
Speaker: Prof. Shinsuke Shigeto (Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University 交通大學應用化學系與分子科學研究所)
Time: 3:30 PM, April 11 (Thursday)
Place: Dr. Poe Lecture Hall, IAMS (本所浦大邦講堂 臺大校園內)
Contact: Dr. Kaito Takahashi 高橋開人博士
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Lecture Title: 綜合利用中孔洞合成材料裏的範本劑膠束 Exploitation and Utilization of Template Micelles in the As-synthesized Mesoporous Silica
Speaker: Prof. Jen-Hua Zhu (朱建華教授)College of Chemistry and Chemical Engineering, Nanjing University, China (南京大學化學化工學院)
Date/Time: 09:30-10:30; April 12 (Friday), 2013
Place: C.T. Chang Memorial Hall, IAMS, Academia Sinica (中央研究院 原分所 張昭鼎紀念講堂)
Contact: Dr. Shang-Bin Liu 劉尚斌博士