|
|||||
|
|
Effect of silver nanoparticles on photo-induced reorientation of azo groups in polymer films |
|
| Authors: | Jingli Zhou Jianjun Yang Douguo Zhang Qijin Zhang |
| Affiliation: | a Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China b Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China c Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China d Department of Physics, University of Science and Technology of China, Hefei 230026, China |
| Abstract: | A series of polymer films containing azo groups and silver nanoparticles were prepared. Photo-induced reorientation of the film was conducted under irradiation of polarized light with wavelength at 365 nm, 442 nm and 532 nm, respectively. The influence of the concentration of dopant silver on the reorientation of the azo groups was studied. An enhancement of about 50% for the reorientation rate and about 70% for the reorientation amplitude was achieved. From a comparison of the enhancement obtained by irradiating with three different light sources, it was realized that the mechanism for enhancement of reorientation of azo groups is due to plasmon resonance of silver nanoparticles doped in the polymer films. |
| Keywords: | Silver Nanostructures Plasmons Optical properties |
| 本文献已被 ScienceDirect 等数据库收录！ | |