Electrical and optical properties, and functionality of conducting polymer - fullerene composite

导电聚合物-富勒烯复合材料的电学、光学性能及功能

• 批准号: 08405025
• 负责人: YOSHINO Katsumi
• 金额: $ 27.46万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08405025/
• 关键词: conducting polymer; fullerene; photo-induced charge transfer; ESR; superconduction; ferromagnetic; solar cell; C_<60>; カーボンナノチューブ; π電子; 複合体; ポリアセチレン誘導体; ソリトン; ド-ピング; 光伝導; 超光速光誘起電荷移動; 電子素子

In this study, we have fabricated composites of conducting polymer and fullerene, investigated their electrical and optical properties, and realized the novel functional devices by using the composites.In the case of doping fullerene with pi -conjugated polymer, such as poly(3-alkylthiophene), photoluminescence intensity of the composite film was quenched with increasing fullerene concentration, but the photoconductivity of the composite film was enhanced markedly depending on the fullerene concentration. These phenomena was explained by the photo-induced charge transfer between the conducting polymer and fullerene, because the fullerene plays an important role in the composite films as electron acceptors against the conducting polymers to dissociate the excitons on the polymer mainchains. Remained positive polarons on the mainchains due to the electron removal should contribute to the enhanced photocurrent.Chemical doping of potassium into the conducting polymer-fullerene composites could be available and the low-field microwave absorption as well as the unique electron spin resonance was observed, that indicates the formation of superconducting phase in the composite of potassium-fullerene-conducting polymer. In the ESR measurement, if the excitation light is irradiated onto the composites additionally, the stable ESR signal could be observed, that coincides with that of polarons in the composites. When the organic donor materials are clqed into the composites, the unique ferromagnetic properties could be observed.Such conducting polymer-fullerene composites, have much attractive optical, electrical, and magnetical characteristics, therefore, we emphasized that the composites should be candidates as the materials for sensors, solar cells, and superconducting devices, magnetic devices, and so on.

在本研究中，我们制备了导电聚合物和富勒烯的复合材料，研究了它们的电学和光学性质，并利用这些复合材料实现了新型的功能器件。在聚3-烷基噻吩等PI共轭聚合物掺杂富勒烯的情况下，复合膜的光致发光强度随着富勒烯浓度的增加而猝灭，但复合膜的光电导随着富勒烯浓度的增加而显著增强。这些现象可以用导电聚合物和富勒烯之间的光致电荷转移来解释，因为富勒烯在复合膜中扮演着重要的角色，它作为电子受体对抗导电聚合物，解离聚合物主链上的激子。在导电聚合物-富勒烯复合材料中可以进行化学掺杂，观察到低场微波吸收和独特的电子自旋共振现象，这表明在钾-富勒烯导电聚合物复合材料中形成了超导相。在ESR测量中，如果将激发光额外照射到复合材料上，可以观察到稳定的ESR信号，这与复合材料中极化子的信号一致。将有机给体材料引入复合材料中，可以观察到独特的铁磁性。这种导电聚合物-富勒烯复合材料具有许多诱人的光学、电学和磁学特性，因此我们强调该复合材料应该作为传感器、太阳能电池、超导器件和磁性器件等的候选材料。

项目成果

Rahmot Hidayat: "Photoliminescence and Electraluminescence in Polymer Mixture of Poly(albylphenyl acetyline) and Poly(diphoenyl acetylene)Derivatives" Japanese Journal of Applied Physics. 37・2A. L180-L183 (1998)

Rahmot Hidayat：“聚(烯丙基苯基乙炔)和聚(二苯乙炔)衍生物的聚合物混合物中的光致发光和电致发光”日本应用物理学杂志37・2A (1998)。

K.Yoshino et al.: "Novel propotion of Molecularly doped conducting polymers and junctions devices" Synthetic Metals. 84. 477-482 (1997)

K.Yoshino 等人：“分子掺杂导电聚合物和结装置的新颖比例”合成金属。

Kazuya Tada: "Field Effect Moliclity of Mebculay Poped Poly(3-Hoxyl tliccpliete)" Japanese Journaol of Applied Physics. 36・6A. L718-L720 (1997)

Kazuya Tada：“Mebculay Poped Poly(3-Hoxyl tliccpliete) 的场效应摩尔度”日本应用物理学杂志 36・6A (1997)。

K.Yoshino, K.Tada, M.Hirohata, N.Tada, Y.Kaneuchi, M.Yoshida, A.Fujii, M.Hamaguchi, H.Araki, T.Kawai, M.Onoa and A.A.Zakhidov: ""Novel properties of molecularly doped conducting polymers and junction devices"" Synthetic Metals. 84. 477-482 (1997)

K.Yoshino、K.Tada、M.Hirohata、N.Tada、Y.Kaneuchi、M.Yoshida、A.Fujii、M.Hamaguchi、H.Araki、T.Kawai、M.Onoa 和 A.A.Zakhidov：《》小说

Tsuyoshi Kawai, Takahiro Yamaue, Mitsuyoshi Onoda and Katsumi Yoshino: ""Effect of Doping of Fullerene Derivative in a Self-Assembled Multilayr of Conducting Polymers"" Japanese Journal of Applied Physics. 37. 5789-5792 (1998)

Tsuyoshi Kawai、Takahiro Yamaue、Mitsuyoshi Onoda 和 Katsumi Yoshino：““自组装多层导电聚合物中富勒烯衍生物的掺杂效应””《日本应用物理学杂志》。