Abstract
Gold nanorods are fascinating nanomaterials for electro-optical applications in nanotechnology, but the basic drawbacks have been thermally unstable and the difficulty in incorporating into the film. In this study, we have developed a simple and highly-reproducible method for large-scale fabrication of composite films consisting of gold nanorods and an organic polymer. The film could be easily casted for more than 10 × 10-cm2 area and the shape (that is, optical characteristic) of gold nanorods could withstand up to ca. 200°C. The composite film was also sensitive to the dielectric constant of the surrounding medium.
Acknowledgment
The authors are grateful to T. Tasaki at Arakawa Chemical In. Ltd. for the preparation of AuNR-COMPOCERAN composite film, and to Mitsubishi Materials Co. Ltd., for the cooperation in the preparation of AuNRs. The present study was partially supported by Grant-in-Aids for Scientific Research (No. 21655028) and of the Priority Area (470, Strong Photon-Molecule Coupling Fields: No. 19049012) from The Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan.