Control of the Structure and Electronic Structure of Organic/metal Interfaces and the Exploitation of the Electronic Functions

有机/金属界面的结构和电子结构的控制以及电子功能的开发

• 批准号: 10440205
• 负责人: SEKI Kazuhiko
• 金额: $ 9.41万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 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-10440205/
• 关键词: organic; metal interface; organic interface; interfacial electronic structure; photoelectron spectroscopy; organic electroluminescent device; epitaxial growth; p-sexiphenyl

(1) The examination of organic/metal interfaces was continued from the last year. The formation of interfaces between p-sexiphenyl (6P) and Au or Mg was pursued with various electronic spectroscopic techniques, and the results indicated that the growth mode of 6P is significantly dependent on the metal, and that the metal atoms deposited onto &P surface diffuse into the 6P player, in particular in the case of Au. The possible band bending in the organic layer was examined for interfaces formed by depositing TPD onto various metals under ultrahigh vacuum. The results show that there is no band bending after the completion of the formation of an electric double layer at the interface up to 100nm thickness.(2) The origin of the enhancement of electron injection efficiency at the insertion of a very thin layer of LiF at the deposition of Al onto Alq3 as the cathode. The results indicated combined contribution of (a) the change of energy level alignment, and (b) the removal of strong chemical interaction between Al and Alq3 at direct contact.(3) The study of alkane on Au(111) surface formed by depositing Au onto mica in the last year was extended to the system of poly(vinylidene fluoride) onto clean crystalline Cu(111) surface. The formation of well-oriented film was demonstrated by infrared reflection-absorption spectroscopy and angle-resolved UV photoelectron spectroscopy. Using these data, detailed information was obtained about the film growth, organic/metal interaction at the interface, and the intramolecular energy-band dispersion relation.

(1)有机/金属界面的考察延续去年的成果。利用各种电子光谱技术研究了对六苯基 (6P) 和 Au 或 Mg 之间界面的形成，结果表明 6P 的生长模式显着依赖于金属，并且沉积在 6P 表面上的金属原子扩散到 6P 中，特别是在 Au 的情况下。通过在超高真空下将 TPD 沉积到各种金属上而形成的界面，检查了有机层中可能的能带弯曲。结果表明，在界面处完成双电层形成直至100nm厚度后，没有出现能带弯曲。(2)在Alq3作为阴极沉积Al时插入极薄的LiF层，电子注入效率增强的根源。结果表明，(a)能级排列的变化和(b)直接接触时Al和Alq3之间强化学相互作用的消除的综合贡献。(3)去年通过将Au沉积到云母上形成的Au(111)表面上烷烃的研究扩展到清洁结晶Cu(111)表面上的聚偏二氟乙烯体系。红外反射吸收光谱和角分辨紫外光电子能谱证明了定向良好薄膜的形成。利用这些数据，获得了有关薄膜生长、界面有机/金属相互作用以及分子内能带色散关系的详细信息。

项目成果

K. Seki: "Photoemission studies functional organic materials and their interfaces"J. Electron Spectrosc. Relat. Phenom. 88-91(1). 821-830 (1998)

K. Seki：“光电子发射研究功能有机材料及其界面”J。

D. Yoshimura: "Angle-resolved Ultraviolet Photoelectron Spectroscopy (ARUPS) of Well-Ordered Ultra-Thin Film of Tetratetracontane (n-C44H90) on Cu(100) with the Acid of Theoretical Simulation : Molectlau Orientation and Intermolecular Energy-Band Dispersi

D. Yoshimura：“使用理论模拟酸对 Cu(100) 上四十四烷 (n-C44H90) 有序超薄膜进行角分辨紫外光电子能谱 (ARUPS) 分析：Molectlau 取向和分子间能带分散

M.Yamamoto: "Physisorption of a Long-Chain n-Alkane on Ag(111) Surface: An Infrared Reflection Absorption Spectroscopic Study"Surf.Sci.. 427-428. 388-392 (1999)

M.Yamamoto：“长链正构烷烃在 Ag(111) 表面上的物理吸附：红外反射吸收光谱研究”Surf.Sci.. 427-428。

D. Yoshimura: "Electronic Structures of Alq3/LiF/Al Interfaces Studied by UV Photoemission"UV Photoemission Synth. Met.. 102. 1145-1146 (1999)

D. Yoshimura：“通过紫外光电子发射研究 Alq3/LiF/Al 界面的电子结构”UV 光电子发射合成。

H. Oji: "P-Sexiphelynel/metal Interfaces Studied by Photoemission And Metastable Electron Spectroscopy"J. Electron Spectrosc.. 517-521. 101-103 (1999)

H. Oji：“通过光电发射和亚稳态电子能谱研究 P-Sexiphelynel/金属界面”J。