Making the well-defined contacts between molecules and substrates in nm scale and their electronic properties

在纳米级分子和基底之间建立明确的接触及其电子特性

• 批准号: 17069009
• 负责人: YOSHINOBU Jun
• 金额: $ 70.02万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17069009/
• 关键词: 表面; 分子; 走査トンネル顕微鏡; 電気伝導; 吸着; 光電子分光; 赤外吸収分光; シリコン; アルキル基; 単層膜; STS; トンネル物性; STM; 電子エネルギー損失分光; 走査型トンネル顕微鏡; X線吸収分光; X線発光分光

We have fabricated the well-defined molecule-substrate contact systems in nm scale and investigated the structural and electronic properties. We elucidated the mechanism of cycloaddition of alkene on Si(100)c(4x2). We have characterized the alkyl monolayer attached to the Si(111) surface using infrared absorption spectroscopy and investigated the electron transport properties using a mercury electrode. As a model system for a metal electrode in water, we investigated water adsorption on Rh(111). In addition, we investigated the adsorbed states and electronic properties of DBP-S and F4-TCNQ molecules on Cu(100). The weak interaction between cyclohexane and Rh(111) was studied using infrared absorption spectroscopy and elucidated the softening mechanism of CH stretching vibration.

我们制备了纳米尺度的分子-基底接触系统，并研究了其结构和电子性质。阐明了烯烃在Si（100）c（4x 2）上的环加成反应机理。我们用红外吸收光谱表征了附着在Si（111）表面的烷基单层膜，并用汞电极研究了其电子输运性质。作为金属电极在水中的模型体系，我们研究了水在Rh（111）上的吸附。此外，我们还研究了DBP-S和F4-TCNQ分子在Cu（100）表面的吸附态和电子性质。用红外吸收光谱研究了环己烷与Rh（111）的弱相互作用，阐明了CH伸缩振动软化的机理。

项目成果

Low Temperature Surface Photochemistry of pai-bonded Ethylene on Si(100)c(4x2)

Si(100)c(4x2) 上对键乙烯的低温表面光化学

• 发表时间: 2009
• 期刊: Jpn. J. Appl. Phys. 48
• 作者: Hirobumi Umeyama;Tetsuo Katayama;Kozo Mukai;Yoshiyuki Yamashita;Jun Yoshinobu
• 通讯作者: Jun Yoshinobu

Low-temperature observation of the softened C-H stretching vibrations of cyclohexane on Rh(111)

Rh(111)上环己烷软化C-H伸缩振动的低温观察

• 发表时间: 2009
• 期刊: Phys. Rev. B 80
• 作者: Takanori Koitaya;Atsushi Beniya;Kozo Mukai;Shinya Yoshimoto,;Jun Yoshinobu
• 通讯作者: Jun Yoshinobu

A miniature effusion cell for the vacuum deposition of organic solids with low vapor pressures in surface science studies

用于表面科学研究中低蒸气压有机固体真空沉积的微型喷射池

• 发表时间: 2008
• 期刊: Rev. Sci. Instrum. 79
• 作者: Jun Yoshinobu;Kozo Mukai;Tetsuo Katayama
• 通讯作者: Tetsuo Katayama

Regioselective cycloaddition reaction of alkene molecules to the asymmetric dimer on Si(100)c(4x2)

烯烃分子与 Si(100)c(4x2) 上不对称二聚体的区域选择性环加成反应

• 发表时间: 2007
• 期刊: J. Am. Chem. Soc. 129
• 作者: Kazuhiro Oguchi;Masashi Nagao;Hirobumi Umeyama;Tetsuo Katayama;Yoshiyuki Yamashita;Kozo Mukai;Jun Yoshinobu;Kazuto Akagi;Shinji Tsuneyuki
• 通讯作者: Shinji Tsuneyuki

Organic Molecules on Si Surfaces: Reaction Mechanisms and Adsorbed States

硅表面有机分子：反应机制和吸附态

• 发表时间: 2008
• 作者: M.Ukai;H.Tamura;et al.;J. Yoshinobu
• 通讯作者: J. Yoshinobu