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Elucidation and Control of Interfaces Related to Organic Electronic Devices

有机电子器件相关界面的阐明和控制

基本信息

批准号：
14GS0213
负责人：
SEKI Kazuhiko
金额：
$ 364.33万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Creative Scientific Research
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14GS0213/
关键词：
Ultrathin Films Organic Electronic Devices Surface and Interface Phenomena Organic Semiconductors Organic Light-emitting Diode Photoelectron Spectroscopy Organic Photovoltaic Cell Interfacial Electronic Structure 方面・界面物性表面・界面物性有機電界発光

项目摘要

1. UPS study of highly ordered organic films gave very sharp spectral features, leading to the clarification of change of electronic structure by molecular order and charge transfer rate at organic/metal interface. We also observed the splitting of the molecular levels for pentacene on clean metal surfaces, and the energy band dispersion could be determined.2. Possible band bending was systematically examined for organic semiconductors which are usually used nominally undoped, in contrast to inorganic semiconductors. The results revealed that bending does not occur for some cases, and that appropriate doping can be used to cause and control the bending, e.g. for enhanced carrier injection.3. The electrical characteristics of organic semiconductors are much affected by atmosphere (e.g. air and O_2). The study of such effect for titanyl phthalocyanine from the viewpoint of interfacial electronic structure showed that oxygen converts the downward bending of films prepared in ultrahigh vac … More uum (HV) to upward bending, This was ascribed to the doping by oxygen working as acceptor.4. New apparatuses of electrical measurements, were developed for under various environments from UHV to gas atmosphere, including thermopower, and displacement current, and detailed Information, e.g. on carrier injection was obtained.5. New methods for examining the electronic structures of organic films were developed, including photoelectron microscopy, high-resolution inverse photoemission, and X-ray emission spectroscopy.6. Complex phenomena at organic interfaces, e.g. motion of organic molecules, diffusion of metal atoms in organic films, and giant surface potential formation, were found and clarified.7. Theoretical calculations were performed on the electronic structure of organic/metal interfaces and the change of metal work function by deposition of organic molecules. They gave good agreement with experimental results.8. Electronic structures of new organic semiconductors and ionic liquids, which attract attention as new electrolyte for organic solar cell, were determined. Less

1.高度有序有机薄膜的UPS研究给出了非常尖锐的光谱特征，从而阐明了有机/金属界面上分子有序和电荷转移速率引起的电子结构的变化。我们还观察到并五苯在干净的金属表面上分子能级的分裂，并可以确定能带色散。 2．系统地检查了有机半导体可能的能带弯曲，与无机半导体相比，有机半导体通常名义上不掺杂。结果表明，在某些情况下不会发生弯曲，并且可以使用适当的掺杂来引起和控制弯曲，例如用于增强载流子注入。3．有机半导体的电学特性受大气（如空气、O_2）的影响很大。从界面电子结构的角度研究钛氧基酞菁的这种效应表明，氧将超高真空(HV)制备的薄膜的向下弯曲转变为向上弯曲，这归因于氧作为受体的掺杂。 4．开发了新的电气测量装置，适用于从特高压到气体气氛的各种环境，包括热电势和位移电流，以及详细信息，例如得到了载流子注入的结果。 5．开发了检测有机薄膜电子结构的新方法，包括光电子显微镜、高分辨率反光电子发射和X射线发射光谱。6．有机界面上的复杂现象，例如发现并阐明了有机分子的运动、有机薄膜中金属原子的扩散以及巨表面电势的形成。7．对有机/金属界面的电子结构以及有机分子沉积引起的金属功函数的变化进行了理论计算。与实验结果吻合良好。8．确定了作为有机太阳能电池新型电解质而备受关注的新型有机半导体和离子液体的电子结构。较少的

项目成果

期刊论文数量（459）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Effects of stoichiometry on electronic states of Au and Pt supported on TiO2(110)

化学计量对TiO2(110)负载Au和Pt电子态的影响

DOI：
发表时间：
2005
期刊：
J.Mater.Sci. 40
影响因子：
0
作者：
K.Okazaki;Y.Morikawa;S.Tanaka;K.Tanaka;M.Kohyama
通讯作者：
M.Kohyama

"Adsorption of naphthalene on a Si(100)-2×1 surface investigated by infrared spectroscopy"

“通过红外光谱研究萘在 Si(100)-2×1 表面上的吸附”

DOI：
发表时间：
2005
期刊：
Surface Science 576
影响因子：
0
作者：
N.Abiko;S.Ogawa;Naofumi Abiko;Satoshi Ogawa;N.Abiko;S.Ogawa;T.Nishikawa;S.Ogawa;Koshi Okamura
通讯作者：
Koshi Okamura

Enhancement of Electron Corelation Efect in Co Thin Clusters Formed on a Sulfur Pasivated GaAs(001) Substrate

硫钝化 GaAs(001) 衬底上形成的 Co 薄团簇中电子相关效应的增强