Electronic Functions of nanotube structures in Group IV and III-V materials

IV族和III-V族材料中纳米管结构的电子功能

• 批准号: 11165203
• 负责人: KASUYA Atsuo
• 金额: $ 13.82万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas (A)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11165203/
• 关键词: nanotubes; carbon nanotubes; single-wall nanotubes; fullerenes; nano-structures; microclusters; II-VI compounds; cage structures; 炭素クラスター; C60; ラマン散乱; 炭素粒子; 走査トンネル顕微鏡; 電子エネルギー損失分光

Aim of this project was to synthesize and investigate electronic functions of nanotube networks in group IV and III-V materials by optical and electron energy loss measurements.In the first year of project period, diameter selected single-wall carbon nanotubes are produced by arc-discharge method and studied by optical, Raman and electron energy loss spectroscopies. By resonant effect of incident beams to the sample, diameter dependent electronic and vibrational states are analyzed. In particular, metal to semiconductor transitions in terms of tube diameter and chirality are identified.In the second year, the investigation is extended to Group II-VI materials to find their possible hallow networks structures. Cage structures of CdSe of diameter from 0.8 nm to 1.4 nm consisting of 4 to 6 membered rings are synthesized by colloidal methods. They are stabilized by encaging a few molecules of CdSe.Tube structures are also synthesized and analyzed for materials such as PbSO_4 by colloidal techniques.

本项目旨在通过光学和电子能量损失测量来合成和研究IV族和III-V族材料的纳米管网络的电子功能。在项目第一年，采用电弧放电法制备了直径选定的单壁碳纳米管，并对其进行了光学、拉曼和电子能量损失光谱的研究。通过入射光束对样品的共振效应，分析了与直径相关的电子态和振动态。特别是，金属到半导体的转变在管直径和手性方面被确定。在第二年，调查扩展到II-VI类材料，以寻找其可能的空心网络结构。采用胶体法制备了直径为0.8 ~ 1.4 nm的CdSe笼状结构，由4 ~ 6个元环组成。它们通过包裹一些CdSe分子来稳定。用胶体法制备了PbSO_4等材料的管状结构，并对其进行了分析。

项目成果

K.Sakamoto: "Interaction of C60 with Si(111)7×7 and Si(100)2×1 Surface Studied by STM,PES and HREELS : Annealing Effect"Surface Science. 438. 242-247 (1999)

K. Sakamoto：“通过 STM、PES 和 HREELS 研究 C60 与 Si(111)7×7 和 Si(100)2×1 表面的相互作用：退火效应”表面科学 438. 242-247 (1999)。

S. Suto, C.-W. Hu, F Sato, m. Tanaka, Y. Kasukabe and A. Kasuya: "Initial Stage of SiC Film Growth on Si(111)7x7 and Si(100)2x1 Surfaces using C60 as a Precursor Studied by STM and HRTEM"Thin Solid Films. 369. 265-268 (2000)

S. Suto，C.-W。

粕谷厚生他: "Exciton Dynamics in PbI2 Ultra-Thin Microcrystallites"J.Lumin.. 6224. (2001)

Kosatsu Kasuya 等人：“PbI2 超薄微晶中的激子动力学”J. Lumin.. 6224. (2001)

Y. Sato, T. Ogawa, K. Motomiya, K. Shinoda, B. Jeyadevan, K. Tohji, A. Kasuya and Y. Nishina: "Purification of MWNTs Combining Wet Grinding, Hydrothermal Treatment and Oxidation"J. Phys. Chem. B. 105. 3387-3392 (2001)

Y. Sato、T. Okawa、K. Motomiya、K. Shinoda、B. Jeyadevan、K. Tohji、A. Kasuya 和 Y. Nishina：“结合湿磨、水热处理和氧化的 MWNT 纯化”J。

K.Sakamoto: "Bonding Nature of C60 Absorbed in Si(111)7×7 and Si(100)2×1 Surfaces studied by STM,PES"Surface Science. 427-428

K. Sakamoto：“通过 STM、PES 研究 Si(111)7×7 和 Si(100)2×1 表面吸收的 C60 的键合性质”表面科学 427-428。