FABRICATION AND OPTICAL/ELECTRONIC PROPERTIES. OF INTERFACE-CONTROLLED ORGANIC NANO STRUCTURE

制造和光学/电子特性。

基本信息

批准号：
11650056
负责人：
UEDA Yasukiyo
金额：
$ 0.64万
依托单位：
KOBE UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650056/
关键词：
ORGANIC THIN FILM ORIENTATION CONTROL ORGANIC INORGANIC DOUBLE LAYER ORGANIC DOUBLE LAYER OPTICAL PROPERTY ELECTRONIC PROPERTY POLARIZED PL SELF-ASSEMBLY 有機半導体 UV-VISスペクトル PLスペクトル偏光特性配向制御蒸着膜

项目摘要

Organic thin films have high potential for next generation photoelectronic and photonic materials.Their physical properties heavily depend oh the molecular orientation in the film In this project, we aim to fabrication and characterization of orientation-controlled organic/inorganic and organic/organic hybrid films.In the case of planar molecules such as quinacridone(QD) compounds, QD molecules grew epitaxially on a cleaved surface of alkali halide. The absorption property of QD films was depended on the molecular orientation. When QD molecules oriented parallel to the substrate surface, the intermolecular charge transfer was contributed effectively to the absorption intensity in the short wavelength region. We also investigated the structure and optical properties of sigma- and pi-conjugated oligomers such as oligodimethylsilane (ODMS) and distyrylbenzane derivatives (trimer of poly (p-phenylene vinylene):PPV) vapor-deposited on uniaxially oriented polydimethylsilane (PDMS) and PPV films. ODMS and DSBs grew epitaxially on the PDMS and PPV layers. The ODMS/PDMS and DSBs/PPV double layers indicated the remarkable anisotropic feature in absorption and emission properties. The dichroic ratio of absorption and emission intensities (I// / IL) were about 15 and 10, respectively. We succeeded in preparation of polarized emitting oligomer films as novel photonic materials.In the case of the aggregate formation of merocyanine (MD) dyes in thin film., on the other hand, amorphous films had high potential. We also found that the - structure of,aggregate was depended on the alkyl chain lengths introduced at the benzothiazol ring. MD-2, -5 and -6 films, which the numbers indicate the number of carbon atoms in the alkyl chain, from H-aggregates, and MD-10 and amorphous MD-18 form J-aggregates. These films had high potential for optical memory.

有机薄膜在下一代光电和光子材料方面具有很高的潜力。它们的物理性能在很大程度上取决于薄膜中的分子取向。在这个项目中，我们的目标是制备和表征取向控制的有机/无机和有机/有机杂化薄膜。对于平面分子，例如喹吖啶酮 (QD) 化合物，QD 分子在碱金属卤化物的劈裂表面上外延生长。 QD薄膜的吸收性能取决于分子取向。当QD分子平行于基底表面取向时，分子间电荷转移有效地促进了短波长区域的吸收强度。我们还研究了气相沉积在单轴取向聚二甲基硅烷 (PDMS) 和 PPV 上的 σ 和 π 共轭低聚物的结构和光学性质，例如低聚二甲基硅烷 (ODMS) 和二苯乙烯基苯烷衍生物（聚对亚苯基亚乙烯基三聚体：PPV）电影。 ODMS 和 DSB 在 PDMS 和 PPV 层上外延生长。 ODMS/PDMS和DSBs/PPV双层在吸收和发射特性方面表现出显着的各向异性特征。吸收强度和发射强度的二色性比(I///IL)分别约为15和10。我们成功地制备了偏振发射低聚物薄膜作为新型光子材料。另一方面，在部花青（MD）染料在薄膜中聚集形成的情况下，非晶薄膜具有很高的潜力。我们还发现，聚集体的结构取决于苯并噻唑环上引入的烷基链长度。 MD-2、-5和-6薄膜，其数字表示烷基链中的碳原子数，由H-聚集体组成，MD-10和无定形MD-18形成J-聚集体。这些薄膜在光存储方面具有很大的潜力。